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Lion Yard Trading
Mercedes-Benz · Engine

Rocker arms and hydraulic lifters

The arms that transfer the camshaft's motion to the valves, and the self-adjusting lifters that take up the clearance.

Also called tappets, cam followers, lifters.

How you know it is this

  • A tapping from the top of the engine, loudest when cold
  • Tapping that quietens as oil pressure builds but never fully goes
  • A misfire with a mechanical noise on the same cylinder

Worth knowing before you buy

  • A ticking lifter is usually an oil problem — wrong grade, low level or long intervals — before it is a worn part.
  • Replaced as a set. Fitting one new lifter among worn ones just moves the noise.
  • A collapsed lifter left long enough wears the camshaft lobe above it, which turns a small job into a big one.

What we need to quote it. The engine code. The chassis number settles the generation, the body and usually the engine in seventeen characters — it is on your mulkiya. A photograph of the old part helps where there is more than one version.

Cam cover and gasketCamshaft and bearingsRockers and liftersValves, springs and sealsCylinder headHead gasket and boltsManifold and swirl flaps
Cylinder head and valvetrain — schematic, to show where the part sits. Arrangement is right; it is a diagram and not a fitment reference.

Rest of the cylinder head and valvetrain

All engine parts
Get in touch

Rocker arms and hydraulic lifters for your Mercedes-Benz?

Send the chassis number and a photograph of the old part. We come back with genuine, OEM and aftermarket options priced side by side, with lead times.

Mon–Sat, 8:00 AM – 6:00 PM · +971 54 303 3119 (Operations Director) · +971 54 241 0599 (Managing Director)