038 117 070 – Oil Cooler O-Ring

Description

The 038117070 Oil Cooler O-Ring is an OEM-quality sealing ring designed for the connection between the oil cooler and engine block. It creates a secure seal to help prevent engine oil from leaking at this critical mounting point. Because the oil cooler operates under constant heat, oil exposure, and pressure changes, its sealing ring requires durable material and accurate dimensions.

Replacing the seal during oil cooler service supports proper lubrication and helps keep the engine bay clean. In addition, a new O-ring helps restore the leak-free connection needed for efficient oil cooling and reliable engine operation.

Why the Oil Cooler Seal Matters

The oil cooler helps manage engine oil temperature during normal operation. Therefore, the connection between the cooler and engine block must remain properly sealed. A worn seal can allow oil to seep externally, causing oil loss and residue around the filter housing area.

Furthermore, continued leakage can attract dirt and make future inspections more difficult. Replacing this small service item whenever the oil cooler is removed reduces the likelihood of repeating the repair. It also helps maintain correct oil level and pressure.

Signs of 038117070 Oil Cooler O-Ring Failure

Inspect the oil cooler connection if you notice any of the following signs:

• Oil seepage around the oil cooler or oil filter housing.

• Fresh oil residue beneath the oil cooler mounting area.

• Oil droplets on nearby hoses, brackets, or engine components.

• A burning-oil smell after the engine reaches operating temperature.

• Dirt buildup around an oily connection point.

• A flattened, cracked, or hardened O-ring during service.

Key Features

• OE Part Number: 038 117 070

• Function: Seals the oil cooler connection to the engine block.

• Protection: Helps prevent oil leakage and maintain lubrication system integrity.

• Material: Heat- and oil-resistant rubber compound.

• Fitment: OEM-quality direct replacement for accurate installation.

• Service: Recommended whenever the oil cooler is removed or replaced.

Service Notes

Always verify fitment by VIN before ordering. Allow the engine to cool fully before servicing the oil cooler because engine oil and coolant may remain hot. First, drain fluids as required for the specific vehicle procedure. Then, remove the oil cooler and carefully discard the old seal.

Compatibility

Always verify fitment by VIN before ordering. Compatibility depends on engine code, model year, oil cooler design, and original part number.

Cross Reference

• 038 117 070

Additional information