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Valve Cover

Engine Valve Cover Assembly with Gaskets
Engine Oil Retention & PCV System Integrity

Aluminum & Composite Engine Valve Covers

Stop engine oil leaks, protect your valvetrain, and replace faulty integrated PCV valves with our OEM replacement valve cover assemblies.

The valve cover seals the top of the engine cylinder head, retaining oil splatter while housing positive crankcase ventilation (PCV) valves and spark plug tube seals. Heat cycles can cause composite valve covers to warp, crack, or leak oil onto hot exhaust manifolds. Our replacement valve covers are manufactured from high-grade reinforced polymers or die-cast aluminum, complete with molded rubber perimeter gaskets, spark plug seals, oil filler caps, and pre-tested PCV valves.

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Up to 1 Year Warranty

All valve cover assemblies include up to 1-year warranty coverage protecting against cover warping, oil seal leakage, and built-in PCV diaphragm failure.

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Fast Shipping

Fast fast shipping in double-walled boxes with rigid interior corner guards to prevent plastic mounting ear breakage during transit.

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What We Offer

Our Valve Cover Product Range

OEM Composite Valve Covers

High-density thermoplastic polymer valve covers matching original factory specifications with integrated PCV oil baffles.

Die-Cast Aluminum Valve Covers

Heavy-duty cast aluminum valve covers offering superior heat resistance and permanent resistance to cover warpage.

Complete Gasket & Seal Bundles

Pre-assembled kits including perimeter valve cover gaskets, spark plug tube seals, grommets, and new oil fill caps.

Frequently Asked Questions

Everything you need to know about valve covers

Read common questions about oil leaks, spark plug well flooding, PCV valve replacement, and bolt torque.

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Symptoms include burning oil smell from exhaust manifold drips, oil puddles around spark plug wells causing misfires, low engine oil levels, and oil residue coated along the cylinder head perimeter.

On many modern cars, the PCV valve and oil separator diaphragm are permanently molded inside the plastic valve cover. When the PCV valve fails or causes squealing vacuum leaks, the entire valve cover assembly must be replaced.

Oil in spark plug wells is caused by hardened or degraded inner spark plug tube seals on the valve cover gasket. This allows engine oil to bypass the seal and saturate ignition coils and plugs.

Yes, our valve cover assemblies come pre-equipped with high-grade silicone or EPDM perimeter gaskets, spark plug tube seals, and bolt grommets ready for installation.

A small dab of high-temp RTV sealant is recommended only at sharp corners, timing cover joints, or half-moon rubber plugs on the cylinder head. The main gasket should be installed clean and dry.

Contact our customer support team at +1 (855) 613-4411 with your vehicle's VIN and engine size to confirm exact valve cover fitment.

Ready to Replace Your Valve Cover?

Browse our extensive selection of OEM aluminum and composite valve covers or speak with an expert today.

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