What does the +0.25mm oversize mean for these bearings?

The +0.25mm designation means these bearings are slightly larger than standard size. They are intended for use when the crankshaft journals have been machined down by 0.25mm due to wear or damage. This allows you to restore the correct oil clearance.

What is the SV series designation?

The SV series refers to King Engine Bearings' Specialized Vibration bearings. These are designed with specific materials and construction to help manage engine vibrations and provide excellent durability.

What material are these bearings made from?

These bearings utilize a tri-metal construction, which is common for high-performance engine bearings. They also feature a specialized overlay with a high-performance polymer coating for improved friction reduction and wear resistance.

Specifications

Brand: King Engine Bearings
Part #: MB4557SV0.25
UPC: 611500618031

King Engine Bearings Mercedes Benz Om 642.822/36/910/20/30/70 O/S (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Mercedes Benz Om 642.822/36/910/20/30/70 O/S (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mercedes-benz-om-642-822-36-910-20-30--t14-770423
Price: 126.46 USD
Availability: BackOrder

$126.46

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King Engine Bearings main bearing set for Mercedes Benz OM642 engines. Size +0.25mm.

Key Features

This is a main bearing set for Mercedes Benz OM642 engines.
Bearings are 0.25mm (.010 inch) oversize.
Features King's SV (Specialized Vibration) tri-metal design.
Includes a high-performance polymer coating to reduce friction.

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About this part

Product Details

These main bearings are 0.25mm (.010 inch) oversize, designed to help restore proper clearances in Mercedes-Benz OM642 engines when the crankshaft journals have been machined to match. King Engine Bearings uses a specialized overlay material with a high-performance polymer coating to help reduce friction and wear, especially important in high-stress engine applications. This set is built to handle the demands of the OM642 engine family, ensuring reliable operation after an engine rebuild.

The SV (Specialized Vibration) series bearings are constructed with a tri-metal design that offers excellent strength and conformability. This means they can adapt to slight imperfections in the crankshaft journal while still providing a strong, durable bearing surface. King's advanced manufacturing processes ensure that each bearing in the set meets precise specifications, which is critical for maintaining oil pressure and protecting the crankshaft.

When rebuilding an OM642 engine, using bearings that are properly sized and built to last is key. This set, being 0.25mm oversize, is intended for use after the crankshaft has been ground to this specific dimension. Always refer to your engine's service manual for the correct machining and assembly procedures.