Valve Cover Diaphragm for Opel Insignia B 2.0 CDTI F20DVH / B20DVH (55513087 / 55516459)

Product Description

This valve cover diaphragm is a replacement component for the crankcase ventilation (PCV) system integrated into the valve cover of Opel Insignia B 2.0 CDTI diesel engines.

The diaphragm helps regulate crankcase pressure and maintain proper engine ventilation.

Over time, the original diaphragm may become hardened, lose its elasticity, or develop cracks due to continuous exposure to engine heat, oil vapour, and pressure fluctuations.

Replacing the diaphragm separately provides an economical alternative to replacing the complete valve cover assembly, provided that the original housing and diaphragm mounting area remain in good condition.

Manufactured by ERSA Kauçuk, an automotive rubber parts manufacturer specializing in replacement diaphragms and other rubber components.

Technical Specifications

Vehicle Compatibility

Opel

• Opel Insignia B 2.0 CDTI

• Opel Insignia B 2.0 Diesel

Compatible Engine Codes

• F20DVH

• B20DVH

• LSQ

OEM Reference Numbers

• 55513087

• 55516459

• 367928988 (valve cover housing marking)

Possible Symptoms of a Damaged Valve Cover Diaphragm

• Whistling or hissing noise around the valve cover.

• Air leakage in the crankcase ventilation system.

• Unstable engine idle.

• Increased engine oil consumption.

• Abnormal crankcase pressure.

• Oil leakage around the engine.

• Damaged, cracked, or hardened diaphragm.

Product Benefits

• Replacement diaphragm supplied separately.

• Economical alternative to replacing the complete valve cover.

• Manufactured by ERSA Kauçuk.

• Designed for compatible valve covers with the specified OEM references.

Package Contents

1 × Valve Cover Diaphragm.

Complete valve cover and other components are not included.

Compatibility Notice

Before ordering, check the valve cover OEM number (55513087 or 55516459) and housing marking (367928988).

The original diaphragm diameter should also be verified as 57 mm. Compatibility depends on the valve cover version and diaphragm mounting design.

SEO Information

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