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Your Vehicle  //  Porsche  //  Cayman 987C / 981C (2005-2016)  //  Any
PorscheCayman 987C / 981C (2005-2016)Gearbox / TransmissionTransmission Cooling

Gearbox Oil Cooler

Gearbox Oil Cooler

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DISPLAYING 17 to 18 (of 18 products)
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Retaining Plate for PDK Gearbox Oil Cooler Pipes. Porsche 987.2 / 981 / 718 Boxster / Cayman - 9G230725500
3
Retaining Plate for PDK Gearbox Oil Cooler Pipes. Porsche 987.2 / 981 / 718 Boxster / Cayman
9G230725500/1
Product Information
Product Information

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
9G230725500

The product you are viewing cross references to these numbers
Water Line Supply, Coolant Pipe. Porsche 987 Boxster / Cayman Tiptronic 2007-08 - 98630707622, 98630707623, 98630707621
2
Water Line Supply, Coolant Pipe. Porsche 987 Boxster / Cayman Tiptronic 2007-08
Special Order item
98630707623
Product Information
Product Information
Water Line Supply, Coolant Pipe.

The Porsche Water Line Supply, Coolant Pipe 98630707622 is a genuine Porsche coolant supply line used within the Tiptronic automatic-transmission cooling circuit on selected Porsche Boxster and Cayman applications.

Fits:

  • Porsche Boxster 987 2.7L 2007/08
  • Porsche Boxster 987 S 3.2/3.4L 2007/08
  • Porsche Cayman 2.7L 987C 2007-08
  • Porsche Cayman S 3.4L 987C 2007-08  

Diagram Ref No 6

The pipe carries engine coolant to the automatic transmission fluid cooler, where coolant helps regulate the operating temperature of the transmission oil.

Maintaining this pipe in good condition is important because the Tiptronic transmission relies on effective thermal management to keep transmission-fluid temperatures within the correct operating range.

As a Genuine Porsche component, the pipe provides the correct factory dimensions, routing and connections for the intended installation.

What This Product Does:
The coolant supply line forms part of the water-to-oil cooling circuit for the Tiptronic transmission.

Its primary functions include:

  • Carrying engine coolant to the ATF cooler
  • Supporting regulation of automatic-transmission fluid temperature
  • Maintaining coolant circulation through the transmission cooler
  • Helping prevent excessive transmission-fluid temperatures
  • Maintaining a sealed cooling circuit
  • Supporting correct Tiptronic transmission operation
  • Providing the original factory coolant routing
  • Preventing coolant loss when correctly installed and sealed

The pipe works alongside the ATF cooler, coolant return line, transmission oil supply and return lines, hoses and associated valves.

Symptoms Of Wear Or Failure:
Coolant pipes can deteriorate through age, corrosion, vibration and repeated heating and cooling cycles.

Common signs of a failing coolant supply pipe include:

  • Visible coolant leakage
  • Wetness around the pipe or connections
  • Pink or white dried coolant deposits
  • Falling engine coolant level
  • Frequent need to top up coolant
  • Low coolant warning
  • Sweet coolant smell
  • Corrosion or pitting on the pipe
  • Damaged pipe connections
  • Leakage around seals or hose joints
  • Distorted or bent pipework
  • Loss of cooling-system pressure
  • Higher transmission operating temperatures
  • Transmission overheating warnings in severe cases

Small leaks may only become visible once the vehicle is fully warm and the cooling system is pressurised.

Why Replacement Matters:
A leaking coolant supply line can affect both the engine cooling system and the transmission cooling circuit.

Coolant loss can reduce system pressure and circulation, while insufficient coolant flow through the ATF cooler can reduce its ability to control transmission-fluid temperature.

Continued operation with a damaged line can contribute to:

  • Coolant loss
  • Cooling-system pressure loss
  • Reduced ATF cooling efficiency
  • Elevated transmission-fluid temperature
  • Accelerated transmission-fluid deterioration
  • Increased wear within the automatic transmission
  • Engine overheating if coolant loss becomes significant
  • Roadside breakdown

Replacing the damaged pipe helps restore a sealed cooling circuit and reliable coolant flow through the transmission cooler.



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

98630707623
98630707622
98630707623
98630707621

The product you are viewing cross references to these numbers
DISPLAYING 17 to 18 (of 18 products)
1 2
Also found on these pages
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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