Oil Coolers / Radiators / Heat Exchangers

Engine oil cooler.


Fits:
Porsche 958 Cayenne 3.0L Hybrid 2011-18
Porsche 970 Panamera 3.0L Hybrid 2012-16

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Diagram ref no 11

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95810727101

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Engine oil heat exchanger.



Fits:
Porsche 958 Cayenne V6 3.6L 2015>>
Porsche 958 Cayenne S / GTS / TURBBO 4.8L 2011>>
Porsche 970 Panamera V6 3.6L 2010-16
Porsche 970 Panamera S / GTS / TURBO 4.8L 2011-16

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Diagram ref no 5

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Engine oil heat exchanger.
OE Match engine oil heat exchanger (sometimes called an oil cooler or oil-to-coolant heat exchanger) - is a precision-engineered cooling component designed to help regulate engine oil temperature by transferring heat between the engine oil circuit and the engine coolant.

Fits:
Porsche 958 Cayenne V6 3.6L 2015 - 2018
Porsche 958 Cayenne S / GTS / TURBBO 4.8L 2011- 2018
Porsche 970 Panamera V6 3.6L 2010 - 2016
Porsche 970 Panamera S / GTS / TURBO 4.8L 2011 - 2016

Diagram ref no 5

The engine oil heat exchanger facilitates thermal management of the engine oil by using the engine’s coolant flow to remove excess heat from the oil. This helps:
•  Maintain stable oil temperatures during normal and strenuous engine operation
•  Reduce oil degradation caused by overheating
•  Support consistent oil viscosity for effective lubrication
•  Improve long-term engine component longevity.

By dissipating heat from the oil into the coolant, the heat exchanger helps prevent oil temperatures from rising excessively - which is particularly important in high-load, high-ambient-temperature, or spirited driving conditions.

Function:
•  Transfers heat from circulating engine oil to the coolant
•  Supports optimal oil temperature to preserve lubrication properties
•  Prevents oil overheating, which can accelerate wear
•  Works as an integrated part of the engine’s cooling and lubrication systems.

Without a functioning oil heat exchanger, engine oil can run hotter than ideal - increasing the risk of reduced oil life, compromised lubrication, and premature engine wear.

The engine oil heat exchanger plays a critical role in managing engine lubrication temperatures. Over time, the heat exchanger can become clogged, corroded, or develop internal leaks between oil and coolant circuits. A failing heat exchanger can lead to:
•  Elevated oil temperatures
•  Reduced oil life
•  Loss of coolant or oil cross-contamination
•  Engine lubrication breakdown
•  Overheating or degraded performance.

Replacing a worn or failed heat exchanger with a quality OE Match unit restores effective oil cooling, enhances engine reliability, and helps ensure long-term protection of pistons, bearings, and other vital components.

When to replace. Replace the engine oil heat exchanger when:
•  Oil temperature readings are unusually high
•  Coolant contamination in the oil (or vice-versa) is suspected
•  Visible leaks from the heat exchanger or its connections
•  You are performing a major engine service or overhaul
•  Signs of corrosion, blockage, or thermal inefficiency are present

Related reference numbers
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94810728122

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Engine oil heat exchanger.

Fits:
Porsche 958 Cayenne V6 3.6L 2015>>
Porsche 958 Cayenne S / GTS / TURBBO 4.8L 2011>>
Porsche 970 Panamera V6 3.6L 2010-16
Porsche 970 Panamera S / GTS / TURBO 4.8L 2011-16

Diagram ref no 5

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Engine oil heat exchanger by NRF for the Porsche 958 Cayenne 92A 4.2L Diesel. This oil cooler forms part of the engine oil filter and console assembly.

Fits

• 958 Cayenne S V8 4.2L Diesel (382Hp) 2010–17

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram: 104-085, item 12

What This Product Does

The heat exchanger transfers heat away from the engine oil to help manage its temperature. Oil temperature control supports the lubrication system by limiting excessive heat within the circulating oil.

Functions

• Transfers excess heat from engine oil.
• Helps regulate oil operating temperature.
• Supports lubrication through oil temperature management.

Technical Details

• Brand: NRF.
• Supplied reference: 95810727130.
• Component identified in the assembly diagram: oil cooler.
• Engine/model identifiers: CUDB, CUDC.
• Assembly context: oil filter, console and oil cooler.

Symptoms of Fault

• Oil seepage or dampness near the cooler and its seals.
• Oil temperatures that remain unusually high.
• Coolant loss without an obvious external source.
• An oily layer or sludge in the coolant reservoir.
• Milky contamination in the oil, where an internal fault permits fluid mixing.
• Unstable engine temperatures.

These signs can have other causes. Inspect the cooler, seals and connected components before deciding which part requires replacement.

Why Replacement Matters

A leaking or internally restricted heat exchanger can compromise oil temperature control. Where internal damage allows oil and coolant to mix, the underlying fault needs repair before contaminated systems are cleaned. Inspect surrounding seals and connections during the work rather than assuming every leak originates in the cooler itself.

FAQs

Does oil in the coolant prove that the head gasket has failed?
No. A heat exchanger fault is another possible source, so diagnosis should establish where the contamination begins.

Will flushing resolve a defective cooler?
Flushing removes residue but does not repair a leak or damaged internal passage. Address the cause before cleaning the affected circuits.

Should nearby seals and hoses be inspected?
Yes. Check for seepage, deterioration and contamination-related damage, and renew affected components as required.

How is a suspected fault confirmed?
Visual examination, appropriate pressure testing and checks for fluid contamination help distinguish cooler faults from problems elsewhere in the engine or cooling system.

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95810727130

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Hex Head Bolt, Engine oil heat exchanger and other positions 

Fits:
Porsche 958 Cayenne V6 3.6L 2015>>
Porsche 958 Cayenne S / GTS / TURBBO 4.8L 2011>>
Porsche 970 Panamera V6 3.6L 2010-16
Porsche 970 Panamera S / GTS / TURBO 4.8L 2011-16

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Diagram ref no 7

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Porsche 958 Cayenne V6 3.6L 2015>>
Porsche 958 Cayenne S / GTS / TURBBO 4.8L 2011>>
Porsche 970 Panamera V6 3.6L 2010-16
Porsche 970 Panamera S / GTS / TURBO 4.8L 2011-16




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Porsche 970 Panamera S / GTS / TURBO 4.8L 2011-16




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Oil cooler control and regulating unit
This Genuine Porsche oil cooler control and regulating unit - also described as a control valve, coolant control valve, oil cooler thermostat or control and regulating unit - forms part of the engine cooling / oil cooling system and helps regulate coolant flow through the oil cooler circuit to support correct operating temperature.

Fits:
Porsche 958 Cayenne 3.0L Diesel 2011 - 2018
 * engine code: CRCA,CRCB, CNRB,CVVA, CVVB,CVVC

Porsche 95B.1 Macan 3.0L Diesel 2014 - 208
 * engine code: CDUD,CTBA, CTBB,CTBC

Porsche 970 Panamera 3.0L Diesel 2011 - 2016
 * engine code: CRCC,CRCB, CWJA

Diagram ref no 19

This part fits in the engine cooling / oil cooler circuit. It is used as a control and regulating valve for the oil cooler coolant flow, helping manage the temperature relationship between the engine coolant system and engine oil cooler.

Functions
• Regulates coolant flow through the oil cooler circuit
• Helps control engine oil temperature during operation
• Supports correct thermal management of the engine and oil cooling system
• Helps the engine reach and maintain the correct operating temperature
• Assists with efficient cooling under load and warmer driving conditions
• Provides factory-correct control valve operation
• Helps maintain OE Porsche cooling system performance and reliability.

The oil cooler control and regulating unit is exposed to constant heat cycles, coolant flow and pressure changes. Over time, the valve or thermostat mechanism can stick, leak, fail internally or stop regulating flow correctly. A faulty unit may affect oil temperature control, cooling efficiency or engine warm-up behaviour. Replacing it with a Genuine Porsche OE control and regulating unit helps restore correct cooling system regulation and protects the engine by maintaining the intended oil and coolant temperature balance.

When to replace
•   If the oil cooler control valve is leaking
•   If there are fault codes or symptoms linked to coolant/oil temperature regulation
•   If engine oil temperature is unstable or higher than expected
•   If the engine is slow to warm up or cooling regulation is poor

•   During oil cooler, coolant thermostat or cooling system repairs
•   If the original unit is cracked, damaged or seized
•   When replacing earlier superseded versions of the component.

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Oil cooler control and regulating unit
This OE Match oil cooler control and regulating unit is a replacement cooling system component used on selected Porsche diesel models. It helps manage coolant flow through the oil cooler circuit, supporting correct oil temperature control and efficient engine operation.

Fits:
Porsche 958 Cayenne 3.0L Diesel 2011 - 2018
 * engine code: CRCA,CRCB, CNRB,CVVA, CVVB,CVVC

Porsche 95B.1 Macan 3.0L Diesel 2014 - 208
 * engine code: CDUD,CTBA, CTBB,CTBC

Porsche 970 Panamera 3.0L Diesel 2011 - 2016
 * engine code: CRCC,CRCB, CWJA

Diagram ref no 19

The control and regulating unit directs or regulates coolant flow to the oil cooler, helping the engine oil reach and maintain the correct operating temperature. By controlling oil cooler performance, it supports stable lubrication, engine efficiency, and long-term protection of internal engine components.

Functions
•  Regulates coolant flow through the engine oil cooler circuit
•  Helps control engine oil temperature
•  Supports stable engine lubrication performance
•  Helps prevent excessive oil temperature during operation
•  Assists efficient engine warm-up and cooling control
•  Supports overall cooling system and thermal management function
•  OE Match replacement for a worn, leaking, or faulty original unit

Why Replace This Part?
The oil cooler control and regulating unit is exposed to constant heat cycles, coolant pressure, vibration, and age-related wear. Over time, internal regulating components or seals can fail, leading to coolant leaks, poor oil temperature control, overheating concerns, or cooling system faults. Replacing a faulty unit helps restore correct oil cooler regulation and protects the engine from temperature-related wear.

When to replace
•  Coolant is leaking from the oil cooler regulating unit area
•  Oil temperature is running higher than normal
•  The engine shows overheating or cooling system warning messages
•  The unit is cracked, damaged, blocked, or leaking
•  Coolant residue or staining is visible around the component
•  The oil cooler, thermostat, or related coolant pipework is being serviced
•  Diagnostic checks indicate a cooling or temperature regulation fault
•  As preventative replacement during major cooling system repair

Where it fits on the car
This unit fits in the engine cooling and oil cooler circuit. It is positioned around the oil cooler / coolant regulation area, where it controls coolant flow to support engine oil temperature management. Exact location may vary depending on model and engine layout.


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Radiator oil cooler gasket



Fits:
Porsche 955 Cayenne 3.2lL 2004-06
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L >>2011

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Diagram Ref No 2

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Radiator Oil Cooler on Engine.



Fits:
Porsche 955 Cayenne 3.2lL 2004-06
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L >>2011

Click 'Zoom in' for large parts diagram.
Diagram Ref No 12

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Radiator oil cooler on engine.


Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-10
Porsche 958 Cayenne 3.0L DIESEL 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-10
Porsche 958 Cayenne 3.0L DIESEL 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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Fits:
Porsche 958 Cayenne 3.0L DIESEL 2012-16
Porsche Macan V6 3.0L TDI 2014>>
Porsche 971 Panamera 3.0L DIESEL 2012-16

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Diagram Ref No 14.

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Seal For Engine Oil Cooler.
The Genuine Porsche Seal for Engine Oil Cooler is an original equipment engine sealing component designed to provide a secure, leak-free seal between the engine oil cooler and the engine assembly on compatible Porsche models. Manufactured to Porsche's exact specifications for fit, sealing performance and durability, this precision-engineered seal prevents engine oil leaks while maintaining correct oil pressure and ensuring efficient operation of the engine oil cooling system.  

Fits:

• Porsche 955 Cayenne 3.2L V6 2003-06
• Porsche 957 Cayenne 3.6L 2007-10
• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17  

Diagram Ref No 11

Manufactured from premium heat-resistant, oil-resistant elastomer, the seal is engineered to withstand continuous exposure to hot engine oil, elevated operating temperatures, pressure fluctuations and repeated thermal cycling. Precision-moulded to Porsche's original dimensions, it provides factory-correct fitment and reliable sealing performance, making it the ideal replacement during oil cooler servicing, engine repairs or preventative maintenance.  

What This Product Does:

• Creates a leak-free seal between the engine oil cooler and engine.
• Prevents engine oil leaks.
• Maintains correct engine oil pressure.
• Supports efficient engine oil cooling.
• Protects the lubrication system from contamination.
• Helps ensure reliable engine lubrication.
• Restores factory sealing performance.
• Forms an essential part of the engine lubrication and oil cooling system.

Symptoms Of Wear Or Failure:

• Engine oil leaks around the oil cooler.
• Oil residue on or around the oil cooler housing.
• Low engine oil level requiring frequent topping up.
• Burning oil smell from the engine bay.
• Visible deterioration, flattening or cracking of the seal.
• Reduced engine oil pressure caused by leakage.
• Oil contamination of surrounding engine components.
• Engine bay contamination from oil seepage.
• Increased oil consumption due to external leaks.
• Oil spots beneath the vehicle.

Why Replacement Matters:

• The engine oil cooler seal is continually exposed to hot engine oil, high operating temperatures, pressure changes and constant thermal cycling. Over time, the sealing material can harden, flatten or crack, reducing its ability to maintain an effective seal between the oil cooler and engine.
• A leaking oil cooler seal can result in engine oil loss, reduced lubrication efficiency and contamination of surrounding engine components. If left unresolved, continued oil leakage may lead to low oil levels, reduced engine protection and the potential for serious engine damage caused by inadequate lubrication.
• Replacing a worn or damaged seal with a Genuine Porsche component restores the integrity of the engine oil cooling and lubrication systems. Manufactured to Porsche's exact engineering standards, the Genuine Porsche Seal for Engine Oil Cooler provides factory-correct fitment, exceptional sealing performance and long-lasting durability, helping maintain optimum engine protection, reliability and performance.

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