Pipes

O-Ring  for PDK Gearbox Oil Cooler Pipe - 12.25 x 2.5mm 
Sold each – 4 required per car

Prevent transmission oil leaks with this OE Match replacement O-ring, designed to seal the gearbox oil cooler pipe connections on Porsche Boxster and Cayman models equipped with PDK transmission.

Fits:

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman GT4 3.8L 2015-16
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram ref no 30

This precision-sized sealing ring fits between the oil cooler pipe and its connection point, creating an oil-tight joint that prevents fluid escaping under normal operating conditions.

An essential replacement when servicing gearbox cooling pipes, particularly where original seals have become flattened, hardened or damaged.

What Does It Do?

The O-ring forms a pressure-resistant seal between the gearbox oil cooler pipe and its mating connection.

As transmission oil circulates through the PDK cooling system, the O-ring prevents oil escaping around the pipe fitting.

When installed correctly, the seal compresses between the mating surfaces to maintain a secure, leak-free connection.

Why Is It Important?

The PDK transmission depends on maintaining the correct oil level for lubrication, hydraulic operation and temperature management.

A worn or damaged O-ring may cause:

• Transmission oil seepage around cooler pipe connections
• Oil stains on the gearbox casing
• Gradual loss of gearbox oil
• Reduced sealing effectiveness at the pipe joint
• Potential transmission damage if oil loss is ignored

Replacing deteriorated seals helps maintain the integrity of the gearbox cooling circuit.

Why Do PDK Oil Cooler O-Rings Fail?

Continuous exposure to transmission oil, operating temperatures and pressure changes can gradually affect the condition of the sealing material.

Common causes include:

• Hardening or flattening with age
• Compression set from prolonged installation
• Damage during oil pipe removal
• Incorrect fitting or pinched seals
• Deterioration caused by repeated temperature changes

When Should It Be Replaced?

Replacement is recommended whenever the O-ring shows cracking, distortion, flattening or evidence of oil leakage.

New seals should also be fitted when disconnecting the relevant gearbox oil cooler pipes, as previously compressed O-rings may no longer provide a reliable seal.

Installation Notes

Remove the old O-ring and carefully clean the sealing groove and mating surfaces.

Lightly lubricate the replacement seal with the appropriate transmission oil before installation, ensuring it sits correctly without twisting or stretching.

Reconnect the oil pipe securely and inspect for leaks after completing the repair. Follow Porsche's specified procedure if the transmission oil level requires checking or adjustment.

Key Features

• OE Match aftermarket replacement O-ring
• Dimensions: 12.25 x 2.5mm
• Designed for PDK gearbox oil cooler pipe connections
• Creates an oil-tight seal between mating components
• Helps prevent transmission oil leakage
• Suitable for Porsche 987.2, 981 and 718 Boxster/Cayman models
• Ideal for gearbox oil cooler pipe servicing
• Sold individually – 4 required per applicable vehicle assembly

OE Match Porsche Boxster & Cayman PDK Gearbox Oil Cooler O-Rings

The Porsche 987.2, 981 and 718 Boxster and Cayman PDK gearbox cooling systems use sealing rings at oil pipe connections to prevent transmission fluid leakage and maintain reliable oil circulation.

The OE Match O-ring, measures 12.25 x 2.5mm and provides a replacement seal for the relevant gearbox oil cooler pipe fittings. It is particularly useful when renewing transmission cooling pipes, repairing oil leaks or carrying out gearbox heat exchanger maintenance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P1301185A

The product you are viewing cross references to these numbers

O-ring PDK gearbox oil cooler pipe 12,25 x 2,5

Sold each - 4 required per car

Fits:
Porsche Boxster 987 MKII 2.9L 2009-12
Porsche Boxster S 987 MKII 3.4L 2009-12
Porsche Boxster 981 2.7L 2012-16
Porsche Boxster 981 S / GTS 3.4L 2012-16
Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
Porsche Cayman 2.9L 987C MKII 2009-12
Porsche Cayman S / R 3.4L 987C MKII 2009-12
Porsche Cayman 2.7L 981 2013-16
Porsche Cayman S / GTS 3.4L 981 2013-16
Porsche Cayman GT4 3.8L 2015-16
Porsche Cayman 718 2.0L PDK (300 Bhp)
Porsche Cayman S 718 2.5L PDK (350 Bhp)
Porsche Cayman T 718 2.0L PDK (300 Bhp)
Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram ref no 30

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P1301185A

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Feed.
Ensure proper transmission cooling and reliable performance with the PDK Gearbox Coolant Hose, Feed. This OEM-quality feed hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures during everyday driving and high-performance conditions.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

  
Diagram Ref No 6

What This Product Does:

• Feeds coolant into the PDK gearbox cooling circuit
• Helps dissipate heat generated by the transmission
• Maintains stable gearbox operating temperatures
• Protects internal transmission components from heat-related wear
• Supports smooth shifting and consistent performance

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent coolant top-offs
• Transmission temperature warning message
• Gearbox running hotter than normal
• Transmission performance issues or limp mode activation
  
• Coolant residue or staining around hose fittings
  
• Cracks, brittleness, swelling, or soft spots in the hose material
  
• Steam from beneath the vehicle in severe cases
  
  

Why Replacement Matters:

• Replacing a worn PDK gearbox coolant feed hose is important because it ensures coolant is properly delivered to the transmission cooling system. Over time, heat and pressure can cause the hose to weaken, crack, or leak, reducing coolant flow to the gearbox cooler.
• If the hose fails, the transmission may overheat, triggering warning messages, reduced performance, or limp mode. Continued overheating can lead to premature wear and costly internal gearbox damage.
• Installing a new feed hose helps prevent coolant loss, restores proper cooling circulation, and protects the PDK transmission for long-term reliability and performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230706300

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Feed.
Ensure proper transmission cooling and reliable performance with the PDK Gearbox Coolant Hose, Feed. This OE MATCH feed hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures during everyday driving and high-performance conditions.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

  
Diagram Ref No 6

What This Product Does:

• Feeds coolant into the PDK gearbox cooling circuit
• Helps dissipate heat generated by the transmission
• Maintains stable gearbox operating temperatures
• Protects internal transmission components from heat-related wear
• Supports smooth shifting and consistent performance

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent coolant top-offs
• Transmission temperature warning message
• Gearbox running hotter than normal
• Transmission performance issues or limp mode activation
  
• Coolant residue or staining around hose fittings
  
• Cracks, brittleness, swelling, or soft spots in the hose material
  
• Steam from beneath the vehicle in severe cases
  
  

Why Replacement Matters:

• Replacing a worn PDK gearbox coolant feed hose is important because it ensures coolant is properly delivered to the transmission cooling system. Over time, heat and pressure can cause the hose to weaken, crack, or leak, reducing coolant flow to the gearbox cooler.
• If the hose fails, the transmission may overheat, triggering warning messages, reduced performance, or limp mode. Continued overheating can lead to premature wear and costly internal gearbox damage.
• Installing a new feed hose helps prevent coolant loss, restores proper cooling circulation, and protects the PDK transmission for long-term reliability and performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230706300

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Feed.
Maintain proper transmission cooling and performance with the PDK Gearbox Coolant Hose, Feed. This OEM-quality hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures under normal driving and high-performance conditions.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)  

Diagram Ref No 7

What This Product Does:

• Feeds coolant into the PDK gearbox cooling circuit
• Helps dissipate heat generated by the transmission
• Maintains stable gearbox operating temperatures
• Protects internal transmission components from heat-related wear
• Supports smooth shifting and overall transmission performance

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent coolant top-offs
• Transmission temperature warning message
• Gearbox running hotter than normal
• Reduced transmission performance or protective limp mode
  
• Coolant residue or staining around hose fittings
  
• Cracked, brittle, or swollen hose material
• Steam from under the vehicle in severe cases
  
  

Why Replacement Matters:

• The PDK gearbox coolant feed hose is essential for delivering coolant to the transmission cooling system. If this hose becomes worn, cracked, or begins to leak, coolant flow to the gearbox cooler can be reduced or lost entirely.
• Failure to replace a damaged hose may result in elevated transmission temperatures, reduced performance, or the transmission entering protective (limp) mode. Prolonged overheating can lead to premature wear of internal components and costly repairs.
• Replacing the hose ensures consistent coolant supply to the PDK system, maintains stable operating temperatures, and helps protect the transmission for long-term reliability and performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230706500

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Feed.
Maintain proper transmission cooling and performance with the PDK Gearbox Coolant Hose, Feed. This OE MATCH hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures under normal driving and high-performance conditions.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)  

Diagram Ref No 7

What This Product Does:

• Feeds coolant into the PDK gearbox cooling circuit
• Helps dissipate heat generated by the transmission
• Maintains stable gearbox operating temperatures
• Protects internal transmission components from heat-related wear
• Supports smooth shifting and overall transmission performance

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent coolant top-offs
• Transmission temperature warning message
• Gearbox running hotter than normal
• Reduced transmission performance or protective limp mode
  
• Coolant residue or staining around hose fittings
  
• Cracked, brittle, or swollen hose material
• Steam from under the vehicle in severe cases
  
  

Why Replacement Matters:

• The PDK gearbox coolant feed hose is essential for delivering coolant to the transmission cooling system. If this hose becomes worn, cracked, or begins to leak, coolant flow to the gearbox cooler can be reduced or lost entirely.
• Failure to replace a damaged hose may result in elevated transmission temperatures, reduced performance, or the transmission entering protective (limp) mode. Prolonged overheating can lead to premature wear of internal components and costly repairs.
• Replacing the hose ensures consistent coolant supply to the PDK system, maintains stable operating temperatures, and helps protect the transmission for long-term reliability and performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230706500

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Return.

Ensure proper transmission cooling and long-term gearbox performance with the PDK Gearbox Coolant Hose, Return. This OE return hose is designed to carry coolant back from the PDK gearbox cooling circuit, helping maintain consistent coolant circulation and stable operating temperatures.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp) 

 
Diagram Ref No 9

What This Product Does:

• Returns coolant from the PDK gearbox cooling system
• Maintains continuous coolant circulation through the transmission cooler
• Helps remove excess heat from the PDK gearbox
• Supports stable transmission temperatures and smooth performance
• Helps prevent overheating and heat-related transmission wear

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent need to top off coolant
• Transmission temperature warning message
• Gearbox running hotter than normal
• Transmission entering limp mode due to overheating
  
• Coolant residue or dampness around hose fittings
  
• Cracked, brittle, swollen, or soft hose material
• Steam from beneath the vehicle in severe cases
  
  

Why Replacement Matters:

• The PDK gearbox coolant return hose is essential for maintaining proper coolant circulation through the transmission cooling system. If this hose becomes cracked, weakened, or begins to leak, coolant flow may be reduced and transmission temperatures can rise quickly.
• Failure to replace a worn hose can lead to coolant loss, overheating, reduced transmission performance, and potential internal gearbox damage. In severe cases, the transmission may enter protective limp mode to prevent further harm.
• Replacing the return hose restores reliable coolant circulation, supports stable gearbox temperatures, and helps protect the PDK transmission for long-term performance and durability.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230707904

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Return.

Ensure proper transmission cooling and long-term gearbox performance with the PDK Gearbox Coolant Hose, Return. This OE MATCH return hose is designed to carry coolant back from the PDK gearbox cooling circuit, helping maintain consistent coolant circulation and stable operating temperatures.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp) 

 
Diagram Ref No 9

What This Product Does:

• Returns coolant from the PDK gearbox cooling system
• Maintains continuous coolant circulation through the transmission cooler
• Helps remove excess heat from the PDK gearbox
• Supports stable transmission temperatures and smooth performance
• Helps prevent overheating and heat-related transmission wear

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent need to top off coolant
• Transmission temperature warning message
• Gearbox running hotter than normal
• Transmission entering limp mode due to overheating
  
• Coolant residue or dampness around hose fittings
  
• Cracked, brittle, swollen, or soft hose material
• Steam from beneath the vehicle in severe cases
  
  

Why Replacement Matters:

• The PDK gearbox coolant return hose is essential for maintaining proper coolant circulation through the transmission cooling system. If this hose becomes cracked, weakened, or begins to leak, coolant flow may be reduced and transmission temperatures can rise quickly.
• Failure to replace a worn hose can lead to coolant loss, overheating, reduced transmission performance, and potential internal gearbox damage. In severe cases, the transmission may enter protective limp mode to prevent further harm.
• Replacing the return hose restores reliable coolant circulation, supports stable gearbox temperatures, and helps protect the PDK transmission for long-term performance and durability.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230707904

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Return.
Maintain optimal transmission cooling and long-term performance with the PDK Gearbox Coolant Hose, Return. This OEM-quality return hose is engineered to carry coolant away from the PDK gearbox cooling circuit, ensuring continuous circulation and effective heat management.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

  
Diagram Ref No 8

What This Product Does:

• Returns coolant from the PDK gearbox cooling circuit
• Maintains continuous coolant flow through the transmission cooler
• Helps regulate gearbox operating temperature
• Protects internal transmission components from excessive heat
• Supports smooth shifting and overall transmission performance

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent coolant top-offs
• Transmission temperature warning message
• Gearbox running hotter than normal
• Transmission entering limp mode due to overheating
  
• Coolant residue or staining around hose connections
  
• Cracked, brittle, swollen, or soft hose material
• Steam from beneath the vehicle in severe cases
  
  

Why Replacement Matters:

• Replacing a worn PDK gearbox coolant return hose is important because it ensures coolant can properly circulate through the transmission cooling system. Over time, heat and pressure can weaken the hose, leading to cracks, leaks, or restricted coolant flow.
• If the hose fails, coolant loss and reduced circulation can cause the PDK transmission to overheat. This may lead to reduced performance, warning messages, limp mode activation, or internal transmission damage.
• Installing a new return hose helps prevent leaks, maintain stable gearbox temperatures, and protect the PDK system for long-term reliability and smooth operation.

Related reference numbers
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9G230707801

The product you are viewing cross references to these numbers

PDK Gearbox Coolant Hose, Return.
Maintain optimal transmission cooling and long-term performance with the PDK Gearbox Coolant Hose, Return. This OE MATCH return hose is engineered to carry coolant away from the PDK gearbox cooling circuit, ensuring continuous circulation and effective heat management.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

  
Diagram Ref No 8

What This Product Does:

• Returns coolant from the PDK gearbox cooling circuit
• Maintains continuous coolant flow through the transmission cooler
• Helps regulate gearbox operating temperature
• Protects internal transmission components from excessive heat
• Supports smooth shifting and overall transmission performance

Symptoms Of Wear Or Failure:

• Coolant leaks near the transmission or under the vehicle
  
• Low coolant warning light
• Frequent coolant top-offs
• Transmission temperature warning message
• Gearbox running hotter than normal
• Transmission entering limp mode due to overheating
  
• Coolant residue or staining around hose connections
  
• Cracked, brittle, swollen, or soft hose material
• Steam from beneath the vehicle in severe cases
  
  

Why Replacement Matters:

• Replacing a worn PDK gearbox coolant return hose is important because it ensures coolant can properly circulate through the transmission cooling system. Over time, heat and pressure can weaken the hose, leading to cracks, leaks, or restricted coolant flow.
• If the hose fails, coolant loss and reduced circulation can cause the PDK transmission to overheat. This may lead to reduced performance, warning messages, limp mode activation, or internal transmission damage.
• Installing a new return hose helps prevent leaks, maintain stable gearbox temperatures, and protect the PDK system for long-term reliability and smooth operation.

Related reference numbers
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9G230707801

The product you are viewing cross references to these numbers

Retaining bracket plate PDK gearbox oil cooler. 

Fits:

Porsche Boxster 987 MKII 2.9L 2009-12
Porsche Boxster S 987 MKII 3.4L 2009-12
Porsche Boxster 981 2.7L 2012-16
Porsche Boxster 981 S / GTS 3.4L 2012-16
Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
Porsche Cayman 2.9L 987C MKII 2009-12
Porsche Cayman S / R 3.4L 987C MKII 2009-12
Porsche Cayman 2.7L 981 2013-16
Porsche Cayman S / GTS 3.4L 981 2013-16
Porsche Cayman GT4 3.8L 2015-16
Porsche Cayman 718 2.0L PDK (300 Bhp)
Porsche Cayman S 718 2.5L PDK (350 Bhp)
Porsche Cayman T 718 2.0L PDK (300 Bhp)
Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram ref no 31

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9G230725500

The product you are viewing cross references to these numbers

PDK Gearbox Oil Cooler Pipe Retaining Plate

Ensure the gearbox oil cooler pipes remain securely fastened with this OE Match replacement retaining bracket plate for Porsche Boxster and Cayman PDK models.

Fits:

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman GT4 3.8L 2015-16
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram ref no 31

This compact mounting component is used within the transmission cooling assembly to hold the oil cooler pipe connections in place. It helps maintain a stable fit between the connected components, reducing movement that could place unnecessary strain on the pipe fittings.

Ideal for replacing a missing, damaged or incorrectly seated original bracket during PDK gearbox repairs.

What Does It Do?

The retaining bracket plate provides mechanical retention for the PDK gearbox oil cooler pipe connections.

As the vehicle operates, engine and gearbox movement can create vibration around the transmission cooling components.

The bracket keeps the oil pipe fittings securely located, helping prevent movement or displacement at their mounting points.

Why Is It Important?

Although it does not carry or seal transmission oil itself, the retaining bracket plays an important supporting role in the gearbox cooling assembly.

A correctly installed bracket helps:

• Hold oil cooler pipe connections in position
• Maintain correct alignment between connected components
• Reduce movement caused by vibration
• Minimise unnecessary strain on pipe fittings and seals
• Support secure assembly of the gearbox cooling system

A damaged or missing bracket may allow excessive movement, potentially affecting the security of the pipe connections.

Why Do Retaining Bracket Plates Fail?

These components are generally long-lasting, but damage can occur through mechanical stress or incorrect handling.

Common causes include:

• Bending during oil cooler pipe removal
• Damage from incorrect installation
• Corrosion caused by moisture and road salt
• Worn or damaged securing points
• Accidental damage during gearbox maintenance

When Should It Be Replaced?

Replace the retaining bracket if it is bent, cracked, excessively corroded or no longer holds the oil cooler pipes securely.

It should also be checked whenever the transmission oil cooler pipes, heat exchanger or associated seals are removed for maintenance.

Installation Notes

Inspect the mounting area and confirm that the oil cooler pipe connections are fully seated before fitting the bracket.

Position the retaining plate correctly and secure it using the appropriate original fixing arrangement.

Check the surrounding pipe connections and sealing rings for damage. If the oil cooling circuit has been opened, follow the correct PDK servicing procedure and check for leaks after reassembly.

Why Choose OE Match?

OE Match provides replacement components for Porsche owners seeking an alternative to genuine Porsche parts.

This retaining bracket is intended to replace the corresponding original component while maintaining the factory-style mounting arrangement.

Key Features

• OE Match aftermarket replacement retaining plate
• Designed for PDK gearbox oil cooler pipe connections
• Helps keep transmission cooling pipes securely located
• Supports correct alignment of pipe fittings
• Reduces unwanted vibration-related movement
• Suitable for Porsche 987.2, 981 and 718 Boxster/Cayman PDK models
• Useful for gearbox cooling system repairs and maintenance
• Alternative to a genuine Porsche replacement part

OE Match Porsche Boxster & Cayman PDK Oil Cooler Pipe Retaining Brackets

The Porsche 987.2, 981 and 718 Boxster and Cayman PDK gearbox cooling assemblies use retaining brackets to secure the transmission oil cooler pipe connections and maintain their correct positioning.

The OE Match retaining bracket plate, is a replacement mounting component for applicable Porsche PDK gearbox oil cooling systems. It is particularly useful when repairing transmission oil cooler pipe connections or replacing damaged retaining hardware.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G230725500

The product you are viewing cross references to these numbers