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Valvetrain & Cylinder Head

Valvetrain and cylinder head parts, including rocker arms, camshafts, camshaft adjusters, hydraulic lifters and rocker cover kits for a range of engine types.Rocker arms, camshafts, lifters, adjusters and rocker cover kits for engines.

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Choosing valvetrain and cylinder head parts

Compare camshafts, lifters, rocker arms, adjusters and covers by engine type, position and whether a part is sold alone or as a kit.

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Match the engine and position

Camshafts, rocker arms and adjusters are often specific to an engine family, and some are side or function specific, such as exhaust or right-hand versions. Confirm the exact engine before comparing.

Lifters and followers

Hydraulic lifters are sold for particular engine layouts. Check whether the listing is for a single lifter or a set, and whether your engine uses the same lifter style.

Covers and adjustment parts

A rocker cover kit may include extra items, so read what is supplied. Adjusters and actuator parts usually relate to a particular camshaft arrangement, so compare part references carefully.