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Lion Yard Trading
Mercedes-Benz · Engine

Connecting rods and bearings

The rods joining pistons to the crankshaft, and the shell bearings at the big end.

How you know it is this

  • A deep knock from low in the engine that worsens under load
  • Low oil pressure with a knock
  • Metallic glitter in the oil or on the sump plug

Worth knowing before you buy

  • A big-end knock is terminal if driven on. Stop rather than drive it to the workshop.
  • Shells come in undersizes to suit a reground crank. The crank has to be measured before ordering.
  • Rod bolts are usually single-use.
  • A spun bearing usually damages the crank journal too — quote both.

What we need to quote it. The engine code and the crankshaft journal size if it has been ground. 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.

Piston, rings and pinConnecting rod and shellsCrankshaft and mainsEngine blockCrank pulley / damperFlywheel and ring gearSeals and gasketsSump and gasket
Block and rotating assembly — schematic, to show where the part sits. Arrangement is right; it is a diagram and not a fitment reference.

Rest of the block and rotating assembly

All engine parts
Get in touch

Connecting rods and bearings 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)