Mercedes-Benz OM651 Cylinder Head Cover Gasket – 6510160021

Replacement cylinder head cover gasket for selected Mercedes-Benz vehicles fitted with the OM651 four-cylinder diesel engine.

Also commonly known as a valve-cover gasket or rocker-cover gasket, this component seals the cylinder head cover to help prevent engine-oil leaks and contamination around the top section of the engine.

Product Details

• Product: Cylinder head cover gasket
• Alternative name: Valve-cover or rocker-cover gasket
• Reference number: 6510160021
• Formatted reference: A6510160021
• Engine family: Mercedes-Benz OM651
• Fuel type: Diesel
• Condition: New replacement part
• Quantity: One gasket

Selected Vehicle Applications

Depending on the exact engine code, production date and vehicle specification, this gasket may be suitable for selected OM651-powered models, including:

Mercedes-Benz C-Class

• W204 C-Class Saloon — 2007–2014
• S204 C-Class Estate — 2007–2014
• C204 C-Class Coupé — from 2011

Mercedes-Benz E-Class

• W212 E-Class Saloon — from 2009
• S212 E-Class Estate — from 2009
• C207 E-Class Coupé — from 2009
• A207 E-Class Cabriolet — from 2010

Mercedes-Benz CLS

• C218 CLS-Class — from 2010

Mercedes-Benz GLK

• X204 GLK-Class — from 2008

Mercedes-Benz M-Class

• Selected W166 models fitted with the OM651 diesel engine

Mercedes-Benz S-Class

• Selected W221 models fitted with the OM651 diesel engine

Mercedes-Benz Sprinter

• W906 Sprinter 3-ton panel van, bus and chassis-cab
• W906 Sprinter 3.5-ton panel van, bus and chassis-cab
• W906 Sprinter 4.6-ton panel van and chassis-cab
• W906 Sprinter 5-ton panel van and chassis-cab

Mercedes-Benz Vito and Viano

• W639 Vito panel van
• W639 Vito/Mixto
• W639 Vito Bus
• W639 Viano

Common Signs of a Leaking Cylinder Head Cover Gasket

• Engine-oil leakage around the cylinder head cover
• Oil collecting around the injectors
• Burning-oil smell from the engine compartment
• Oil residue or dirt accumulating around the upper engine
• Gradual reduction in the engine-oil level

These symptoms do not automatically confirm gasket failure. The engine should be inspected and correctly diagnosed before replacement.

Important Compatibility Notice

Mercedes-Benz used several OM651 engine variants and cylinder head cover designs across these model ranges. The vehicle model and year alone are not sufficient to guarantee compatibility.

Please provide your complete 17-digit VIN before purchasing so that fitment can be confirmed.

Installation Information

• Professional installation is strongly recommended.
• Clean and inspect all sealing surfaces before installation.
• Check the cylinder head cover for cracks, distortion or other damage.
• Follow the manufacturer’s specified tightening sequence and torque settings.
• Do not overtighten the cover fasteners.
• Additional sealant should only be applied where specified by the manufacturer.
• Inspect the crankcase ventilation system, injectors and surrounding components for related leaks.

Incorrect installation, damaged sealing surfaces, a distorted cover or excessive crankcase pressure may cause repeat oil leakage.

Package Contents

• One Mercedes-Benz OM651 cylinder head cover gasket

Reference: 6510160021 / A6510160021
VIN confirmation is required before purchase.