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Your Vehicle  //  Porsche  //  Boxster 986/987/981 (1997-2016)  //  Boxster S 987 MKII 3.4L 2009-12
PorscheBoxster 986/987/981 (1997-2016)Boxster S 987 MKII 3.4L 2009-12Gearbox / TransmissionTransmission Cooling

Gearbox Oil Cooler

Gearbox Oil Cooler

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DISPLAYING 1 to 4 (of 4 products)
Gearbox Oil Cooler PDK. Porsche 987.2 / 981 / 718 Boxster / Cayman - 9G230701700
2
Gearbox Oil Cooler PDK. Porsche 987.2 / 981 / 718 Boxster / Cayman
Special Order item
9G230701700
Product Information
Product Information

PDK Gearbox Oil Cooler 

The PDK Gearbox Oil Cooler is a replacement heat exchanger designed to regulate transmission oil temperature in Porsche Boxster and Cayman models fitted with the PDK dual-clutch gearbox.

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 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 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)

Diagram Ref No 25

It transfers excess heat from the gearbox oil to the vehicle's cooling system, helping maintain consistent transmission performance and protect internal components against overheating.

What Does It Do?

The gearbox oil cooler helps remove heat generated during PDK operation.

By transferring heat from the transmission oil to the engine cooling circuit, it helps maintain the correct operating temperature for reliable gearbox lubrication and performance.

Why Is It Important?

The Porsche PDK gearbox relies on controlled oil temperatures for efficient operation.

Excessive transmission heat can contribute to:

  • Reduced gearbox performance
  • Deterioration of transmission oil
  • Increased internal component wear
  • Gearbox overheating warnings
  • Premature transmission damage

A correctly functioning oil cooler helps maintain stable operating temperatures.

Why Does It Fail?

Common causes of gearbox oil cooler failure include:

  • Internal corrosion or deterioration
  • Blocked coolant or oil passages
  • Age-related damage
  • Leaking seals or connections
  • Internal heat exchanger failure

These problems can reduce cooling efficiency or allow fluid leakage.

When Should It Be Replaced?

Replace the gearbox oil cooler if:

  • The heat exchanger is leaking
  • Transmission temperatures are consistently excessive
  • Cooling performance has deteriorated
  • Internal oil and coolant contamination is confirmed
  • The cooler is damaged during gearbox repairs

Always diagnose the cooling system and transmission before replacing the cooler.

Checks & Installation

Inspect the connecting oil pipes, coolant hoses and sealing rings before installation.

Replace damaged seals and follow Porsche workshop procedures when refilling and bleeding the cooling system.

Check the correct PDK oil level and inspect for leaks after installation.

Key Features

  • Designed for selected Porsche 987.2, 981 and 718 models
  • Helps regulate transmission oil temperature
  • Transfers excess heat to the cooling system
  • Supports reliable PDK gearbox operation
  • Helps protect transmission components from overheating
  • Replacement for leaking or damaged oil coolers
  • Suitable for gearbox cooling system repairs

Porsche Boxster & Cayman PDK Gearbox Oil Coolers

Maintaining the correct gearbox oil temperature is essential for reliable Porsche PDK transmission operation.

The 9G230701700 gearbox oil cooler helps regulate transmission temperature in selected Porsche 987.2, 981 and 718 Boxster and Cayman models, protecting internal components against excessive heat.

Replacing a damaged or leaking heat exchanger helps restore the original gearbox cooling system and maintain consistent transmission performance.


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

9G230701700
9G230701700

The product you are viewing cross references to these numbers
Gearbox Oil Cooler PDK. Porsche 987.2 / 981 / 718 Boxster / Cayman - 9G230701700
2
Gearbox Oil Cooler PDK. Porsche 987.2 / 981 / 718 Boxster / Cayman
9G230701700/1
Product Information
Product Information

PDK Gearbox Oil Cooler 

The OE Match PDK Gearbox Oil Cooler is a replacement heat exchanger designed to regulate transmission oil temperature in Porsche Boxster and Cayman models fitted with the PDK dual-clutch gearbox.

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 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 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)

Diagram Ref No 25

It transfers excess heat from the gearbox oil to the vehicle's cooling system, helping maintain consistent transmission performance and protect internal components against overheating.

What Does It Do?

The gearbox oil cooler helps remove heat generated during PDK operation.

By transferring heat from the transmission oil to the engine cooling circuit, it helps maintain the correct operating temperature for reliable gearbox lubrication and performance.

Why Is It Important?

The Porsche PDK gearbox relies on controlled oil temperatures for efficient operation.

Excessive transmission heat can contribute to:

  • Reduced gearbox performance
  • Deterioration of transmission oil
  • Increased internal component wear
  • Gearbox overheating warnings
  • Premature transmission damage

A correctly functioning oil cooler helps maintain stable operating temperatures.

Why Does It Fail?

Common causes of gearbox oil cooler failure include:

  • Internal corrosion or deterioration
  • Blocked coolant or oil passages
  • Age-related damage
  • Leaking seals or connections
  • Internal heat exchanger failure

These problems can reduce cooling efficiency or allow fluid leakage.

When Should It Be Replaced?

Replace the gearbox oil cooler if:

  • The heat exchanger is leaking
  • Transmission temperatures are consistently excessive
  • Cooling performance has deteriorated
  • Internal oil and coolant contamination is confirmed
  • The cooler is damaged during gearbox repairs

Always diagnose the cooling system and transmission before replacing the cooler.

Checks & Installation

Inspect the connecting oil pipes, coolant hoses and sealing rings before installation.

Replace damaged seals and follow Porsche workshop procedures when refilling and bleeding the cooling system.

Check the correct PDK oil level and inspect for leaks after installation.

Key Features

  • OE Match PDK gearbox oil cooler
  • Porsche reference 9G230701700
  • Designed for selected Porsche 987.2, 981 and 718 models
  • Helps regulate transmission oil temperature
  • Transfers excess heat to the cooling system
  • Supports reliable PDK gearbox operation
  • Helps protect transmission components from overheating
  • Replacement for leaking or damaged oil coolers
  • Suitable for gearbox cooling system repairs

Porsche Boxster & Cayman PDK Gearbox Oil Coolers

Maintaining the correct gearbox oil temperature is essential for reliable Porsche PDK transmission operation.

The OE Match gearbox oil cooler helps regulate transmission temperature in selected Porsche 987.2, 981 and 718 Boxster and Cayman models, protecting internal components against excessive heat.

Replacing a damaged or leaking heat exchanger helps restore the original gearbox cooling system and maintain consistent transmission performance.


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

9G230701700
9G230701700

The product you are viewing cross references to these numbers
O-ring PDK gearbox oil cooler pipe 12,25 x 2,5. Porsche 987.2 Boxster / Cayman / 718 Boxster / Cayman - 9P1301185A, 9G130789101, 9G130789100
2
O-ring PDK gearbox oil cooler pipe 12,25 x 2,5. Porsche 987.2 Boxster / Cayman / 718 Boxster / Cayman
Special Order item
9P1301185A
Product Information
Product Information
O-ring PDK gearbox oil cooler pipe 12,25 x 2,5

Sold each - 4 required per car

Fits:
Porsche 987.2 Boxster - 2009 to 2012
Porsche 987.2 Cayman - 2009 to 2012
Porsche 981 Boxster - 2012 to 2016
Porsche 981 Cayman - 2013 to 2016
Porsche 718 Boxster - 2017 Onwards

Porsche 718 Cayman  - 2017 Onwards

Click 'Zoom in' for large parts diagram.
Diagram ref no 30



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

9P1301185A
9P1301185A
9G130789101
9G130789100

The product you are viewing cross references to these numbers
Retaining bracket plate PDK gearbox oil cooler. Porsche 987.2 Boxster / Cayman / 718 Boxster / Cayman - 9G230725500
3
Retaining bracket plate PDK gearbox oil cooler. Porsche 987.2 Boxster / Cayman / 718 Boxster / Cayman
Special Order item
9G230725500
Product Information
Product Information
Retaining bracket plate PDK gearbox oil cooler. 

Fits:
Porsche 987.2 Boxster - 2009 to 2012
Porsche 987.2 Cayman - 2009 to 2012
Porsche 981 Boxster - 2012 to 2016
Porsche 981 Cayman - 2013 to 2016
Porsche 718 Boxster - 2017 Onwards

Porsche 718 Cayman  - 2017 Onwards

Click 'Zoom in' for large parts diagram.
Diagram ref no 31



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

9G230725500
9G230725500

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
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About Gearbox Oil Cooler

Porsche Gearbox Oil Coolers | Maintain Optimal Transmission Temperatures for Peak Performance

A gearbox oil cooler is essential for regulating transmission temperature and ensuring consistent performance under demanding driving conditions. By circulating and cooling the gearbox oil, it prevents overheating, protects internal components, and extends the lifespan of your Porsche’s transmission.

At Design911, we supply high-quality gearbox oil coolers engineered to meet or exceed original design standards. Built from robust aluminium and high-efficiency cores, our coolers deliver superior thermal management and fluid flow — ideal for both road and track applications.

Whether you’re servicing your Porsche, replacing a leaking cooler, or upgrading for enhanced performance, our gearbox oil coolers ensure reliable cooling and protection for every mile.

What Do Gearbox Oil Coolers Do?

The gearbox oil cooler dissipates the heat generated during transmission operation, maintaining stable oil temperatures for optimal performance and protection.

Core Functions:

  • Regulates gearbox oil temperature to prevent overheating.
  • Ensures consistent lubrication and hydraulic performance.
  • Protects seals, bearings, and internal components from heat damage.
  • Enhances efficiency and performance under load.
  • Extends the overall lifespan of the gearbox system.

Without a properly functioning oil cooler, the gearbox can overheat — leading to fluid breakdown, gear wear, and costly transmission damage.

Why Do Gearbox Oil Coolers Fail or Wear Out?

Gearbox oil coolers operate under high pressure and extreme heat. Over time, these conditions can cause blockages, corrosion, or leaks that reduce cooling efficiency.

Common Causes of Failure Include:

  • Corrosion or internal degradation from moisture or contaminated oil.
  • Leaks caused by damaged fittings or cracked cores.
  • Blockages restricting oil flow and heat transfer.
  • External damage from road debris or impact.
  • Deterioration of hoses and seals over time.

When an oil cooler fails, symptoms can include rising gearbox temperatures, oil leaks, fluid contamination, or transmission warning lights — all signs that replacement is required.

Why Replace Your Porsche Gearbox Oil Cooler?

Replacing or upgrading your gearbox oil cooler is essential to maintain safe operating temperatures, prevent gearbox wear, and ensure consistent performance. Performance-grade oil coolers are especially beneficial for track, towing, or high-torque applications.

Key Benefits:

  • Restores efficient gearbox temperature regulation.
  • Prevents overheating and oil degradation.
  • Improves transmission longevity and reliability.
  • Reduces thermal stress on internal gearbox components.
  • Designed for Porsche 911, Cayman, Boxster, Panamera, and PDK models.
  • Ideal for standard servicing, rebuilds, and performance upgrades.

Regular inspection and timely replacement of the gearbox oil cooler help maintain optimal performance and avoid major gearbox repair costs.

Highlights

  • Premium Porsche gearbox oil coolers engineered for reliability.
  • Efficient heat dissipation for manual, Tiptronic, and PDK gearboxes.
  • Durable aluminium construction with high-performance cores.
  • Prevents overheating and extends gearbox lifespan.
  • Perfect for maintenance, restoration, or motorsport applications.
  • Direct-fit replacements compatible with a wide range of Porsche models.

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