Description
Cylinder Head Cover, Valve Cover for Citroën and Peugeot Vehicles With RHR RHK Engines And Others
High-quality replacement cylinder head cover designed for 2.0 HDi engines (RHR, RHK) used in various Citroën and Peugeot models. This valve cover is supplied with the most commonly referenced part numbers and cross-references used by workshops and DIY mechanics, making it easy to find by product code. Built to restore a proper seal at the top of the engine, it prevents oil leaks, protects the camshaft area from contamination and supports integrated ventilation components found on HDi engines.
This part is ideal for professional mechanics and experienced DIYers who service diesel HDi engines. The cover is frequently searched and ordered by its product codes, so listing the correct reference numbers below will help you locate the exact item quickly.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: 2.0 HDi (Engine Codes RHR, RHK) — fits multiple Citroën and Peugeot models
- Product Codes: 9645977980, 9669688980, 0248Q6
- Additional Numbers: 0248.L1, 0248.Q6, 0248L1, 0248Q6, 9660281080, 9662688980
Compatible Vehicles (Examples)
Common vehicle applications include Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C8, Peugeot 3008 I, Peugeot 307, Peugeot 308, Peugeot 407, Peugeot 5008 I, Peugeot 807 and Peugeot 508 equipped with 2.0 HDi engines (RHR / RHK). Always verify engine code and part number match the vehicle requirements before installation.
Replacement Procedure (Overview)
- Prepare the vehicle: allow the engine to cool and work on a flat surface. Remove engine covers and any intake components obstructing access to the valve cover.
- Disconnect ignition coils or spark plug leads if required for clear access. Remove bolts securing the valve cover in a diagonal sequence to avoid distortion.
- Carefully lift off the valve cover. Remove the old gasket and clean the mating surfaces thoroughly—remove oil, carbon deposits and old sealant residue without scratching the surface.
- Fit a new gasket and replace any damaged studs or bolts. Reinstall the valve cover and tighten bolts evenly to the manufacturer’s torque specification. Do not overtighten.
- Reconnect coils, hoses and any removed components. Refill or top up oil if needed, start the engine and check for leaks once up to operating temperature.
Installation Recommendations
- Use a new gasket whenever you replace the valve cover. Old gaskets rarely reseal properly after removal.
- Clean mating surfaces thoroughly and inspect bolt threads and studs. Replace corroded or damaged studs to ensure an even seal.
- Follow the vehicle manufacturer’s torque specifications for valve cover bolts. Tighten in a cross pattern to avoid warping.
- Replace any integrated PCV/oil separator components if they show signs of failure—blocked ventilation can increase crankcase pressure and force oil past seals.
- After installation, run the engine and recheck for leaks. Inspect again after a short test drive.
Why This Part Fails (Most Common Reasons)
The valve cover itself can develop cracks from thermal stress or impact, but the most frequent cause of oil leaks is gasket deterioration. Rubber and cork gaskets harden, shrink or become compressed over time, losing their sealing ability—especially after 80,000–150,000 km or several years in service depending on driving conditions and maintenance. Other common causes include damaged or loose mounting bolts/studs, warped mating surfaces from overheating, and failure of integrated ventilation or PCV components which increases crankcase pressure and forces oil past the seal.
Search And Ordering Tip
This part is commonly searched by its reference numbers: 9645977980, 9669688980, 0248Q6 and the additional cross-references listed above. Use these codes to quickly locate the correct valve cover for Citroën and Peugeot 2.0 HDi installations.
