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Porsche > Cayenne 92A (958) 2010-2017 > 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17 > Engine Cooling >

Oil Radiators / Heat Exchangers

Oil Radiators / Heat Exchangers

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Engine oil heat exchanger. Porsche 958 Cayenne 92A S V8 4.2L Diesel - 95810727130 - 31271
4
Engine oil heat exchanger. Porsche 958 Cayenne 92A S V8 4.2L Diesel
95810727130/1
Product Information
Product Information

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.



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Related, superseded, cross reference or alternative numbers for comparison.

95810727130
95810727130

The product you are viewing cross references to these numbers
Speed Nut. Porsche 911 Carrera 3.2 1984-89 - 99950722902, 9995072290C
1
Speed Nut. Porsche 911 Carrera 3.2 1984-89
Special Order item
9995072290C
Product Information
Product Information

Genuine Porsche speed nut for the engine lubrication oil cooler assembly.

Fits

  • Porsche 911 3.2L 1984–1986
  • Porsche 911 3.2L G50 1987–1989

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

Diagram: 104-05, item 54 (1984–86); Diagram: 104-05, item 51 (1987–89).

What This Product Does

The speed nut forms part of the engine oil cooler installation. It provides a retained fastening point for the associated cooler assembly hardware, helping the relevant component remain correctly secured when the specified screw or fixing is installed.

Functions

  • Provides a fastening point within the engine oil cooler assembly
  • Retains the corresponding fixing after installation
  • Replaces a missing, damaged or weakened original speed nut

Technical Details

  • Genuine Porsche component
  • Porsche part number: 99950722902
  • Part type: speed nut
  • Assembly: engine lubrication oil cooler
  • Diagram quantity: four per applicable assembly

Symptoms of Fault

  • Original speed nut is missing during disassembly
  • Fastener no longer grips securely
  • Nut is distorted, corroded or damaged
  • Associated oil cooler hardware cannot be tightened correctly
  • Movement or looseness is present at the relevant mounting point

Why Replacement Matters

A damaged or missing speed nut can prevent the associated fixing from being secured as intended. Replacing it with the correct Porsche part helps preserve the original fastening arrangement and avoids reusing hardware that has lost its grip or become distorted. Inspect the adjoining screws, brackets and mounting points while the assembly is accessible.

Support & Advice

Confirm part number 99950722902 against the vehicle details and the removed component before ordering. Items selected through a part-number search cannot be returned when ordered incorrectly.



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

9995072290C
99950722902
9995072290C

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
Also found on these pages
About Oil Radiators / Heat Exchangers

Oil Radiators & Heat Exchangers – Optimal Temperature Control for Porsche Performance

Oil radiators and heat exchangers are crucial components in your Porsche’s engine and transmission cooling systems. They regulate oil temperature by transferring heat away from the lubricating or hydraulic fluids, ensuring consistent performance, efficient lubrication, and long-term engine protection — even under extreme driving conditions.

At Design911, we offer a complete range of genuine and manufacturer-quality oil radiators and heat exchangers for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each unit is engineered for precise fitment, efficient heat transfer, and long-lasting reliability — maintaining the high-performance standards that Porsche vehicles are known for.

What Do Oil Radiators & Heat Exchangers Do?

Oil radiators and heat exchangers serve a vital role in temperature regulation and system protection. They:

  • Dissipate heat from engine or transmission oil to prevent overheating.
  • Maintain stable oil temperature for optimal viscosity and lubrication.
  • Extend component lifespan by preventing thermal damage.
  • Support engine and gearbox efficiency under heavy load or high-speed conditions.

By controlling oil temperatures, these parts ensure consistent power delivery, reduced wear, and greater reliability — whether on the road or track.

Why Do Oil Radiators & Heat Exchangers Fail?

Despite being built to handle extreme conditions, these components can fail over time due to wear, corrosion, or contamination. Common causes include:

  • Corrosion or internal blockage from debris or degraded fluids.
  • Physical damage from road debris or impact.
  • Oil or coolant leaks due to cracked housings or seals.
  • Reduced heat transfer efficiency from clogged fins or internal scaling.
  • Age-related deterioration of internal passages or gaskets.

Symptoms of failure include oil leaks, rising engine temperatures, reduced oil pressure, or contamination between the oil and coolant systems.

Why Replace a Faulty Oil Radiator or Heat Exchanger?

A damaged or inefficient oil radiator can cause overheating, loss of lubrication, and serious engine or transmission damage. Replacing faulty units restores cooling efficiency and ensures your Porsche continues to deliver peak performance and reliability.

Benefits of replacement include:

  • Restored oil temperature control and pressure stability.
  • Prevention of overheating and oil contamination.
  • Improved engine and gearbox longevity.
  • Manufacturer-quality construction and fitment for peace of mind.

Each radiator and heat exchanger in this range is designed to meet or exceed factory standards, using advanced materials and precision manufacturing for superior durability, corrosion resistance, and cooling performance.

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