Rod Bearing Set .050 OS – OM642 Mercedes Sprinter (6420300260050)

SKU: 6420300260050 - qty 1

Restore proper engine bearing clearances and crankshaft support with this Rod Bearing Set—part #6420300260050 (.050 oversize) for Mercedes Sprinter diesel engines. These connecting rod bearings sit between the crankshaft journals and connecting rods, providing a precise bearing surface that tolerates the engine’s rotating motion at high speed and load. Using oversize bearings (.050 mm larger than standard) is essential when the crank journals have been machined or polished undersize during engine rebuilding. Replacing worn or incorrect bearings helps prevent bearing knock, oil pressure issues, and premature engine wear. 

✔ Engine Rebuild & Tolerance Correction

• Designed to match Mercedes-Benz 6420300260 specification in a .050 oversize size, ideal for journals machined down during crankshaft rework. 

• Provides precise clearance for crankshaft-to-rod interface—essential for smooth, quiet engine operation.

✔ Critical for High-Mileage Engines

• Recommended for engine overhauls, rebuilds, and crankshaft journal refinishing jobs on Sprinter OM642 3.0 L V6 engines. 

• Helps maintain proper oil film integrity between bearings and crankshaft for long-lasting durability.

✔ Durable Bearing Construction

• Manufactured to meet performance standards that support heavy diesel torque and horsepower. 

• Complete set accommodates all connecting rods in the engine — sold as a full kit.

📌 Service Tip: Always measure crankshaft journal diameter and compare with bearing size before installation. Clearances are critical — too tight or too loose can lead to oil pressure loss or early bearing failure.