Premium-quality valve cover designed for 1.4 16V HDi (engine code 8HY) applications on Citroën and Peugeot models. This valve cover (part numbers 9641543280 / 0248K4) is typically searched by mechanics and DIY enthusiasts by its product code and is an essential engine component that prevents oil leaks, secures the camshaft area, and houses the crankcase ventilation/pressure valve. Manufactured to match OE fitment, it ensures correct sealing and reliable long-term performance when installed with a new gasket and proper fastening sequence.

Why Choose This Valve Cover

Designed for direct replacement on vehicles with the 1.4 HDi 8HY engine, this valve cover restores proper sealing of the cylinder head area, prevents oil contamination of ignition components, and supports the PCV/pressure valve function. Ideal for professional workshops and experienced DIY mechanics looking for an exact-fit spare part indicated by the common OEM numbers 9641543280 and 0248K4.

Typical Symptoms and Failure Causes

• Visible oil leaks around the valve cover gasket and pooling oil under the engine.
• Oil contamination on ignition coils or spark plug wells, causing misfires or rough idle.
• Degraded or hardened gasket material due to heat cycling and age, leading to loss of sealing.
• Cracks or distortion in the plastic cover from long-term heat exposure or overtightening of bolts.
• Clogged or failing pressure/PCV valve causing crankcase pressure build-up and increased leakage.

Replacement Guide

Replacement of the valve cover is a standard job for mechanics and experienced DIYers. Typical steps:

• Allow Engine To Cool Completely. Work on a cold engine to avoid burns and ensure accurate sealing surfaces.
• Remove Engine Cover And Any Obstructing Components. This may include ignition coils, air intake hoses, or wiring harness clips located on the cover.
• Disconnect Vac/Hose Connections To The Pressure/PCV Valve. Label hoses if necessary to ensure correct reassembly.
• Unscrew Valve Cover Bolts In A Cross Pattern And Lift Off The Cover.
• Clean Mating Surface Thoroughly. Remove old gasket material and oil residue without damaging the cylinder head surface.
• Install New Gasket And Place The Valve Cover. Ensure gasket seats correctly in its groove.
• Tighten Bolts Evenly To Manufacturer Specifications Using A Torque Wrench. Reconnect Hoses And Components.
• Start Engine And Inspect For Leaks. Verify Proper Operation Of The Pressure/PCV Valve And No Oil Seepage.

Installation Recommendations

• Always Use A New Valve Cover Gasket When Replacing The Cover To Ensure Reliable Sealing.
• Inspect And Replace The Pressure/PCV Valve If Signs Of Blockage Or Wear Are Present.
• Do Not Overtighten Fasteners; Use A Torque Wrench And Follow Manufacturer Torque Specs.
• Clean Sealing Surfaces Carefully; Avoid Solvents That Could Damage New Gasket Material.
• Replace Any Damaged Hose Clamps Or Perished Hoses Connected To The Cover.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C3 (1.4 16V HDi 8HY), Peugeot 1007 (1.4 16V HDi 8HY)
• Product Codes: 9641543280, 0248K4
• Other Numbers: 0248.K4

Why This Part Fails Most Often

Valve covers commonly fail due to age-related deterioration of the gasket and cover material under continuous heat cycles, chemical exposure to engine oil and additives, and mechanical stress from vibration. A blocked or malfunctioning PCV/pressure valve can raise crankcase pressure and accelerate leakage. Timely replacement and inspection during routine maintenance prevents oil leaks, engine bay contamination, and related ignition issues.