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

The +0.25mm sizing indicates that these bearings are slightly larger than standard. They are intended for use when the engine's crankshaft has been machined down by 0.25mm to correct wear or out-of-roundness. Using the correct bearing size is critical for proper oil clearance and engine performance.

What is the TriArmor coating on these bearings?

TriArmor is a unique, multi-layer surface treatment applied by King Engine Bearings. It's designed to enhance the bearing's resistance to wear and friction, helping to protect the bearing surface and ensure consistent performance over time, especially under demanding conditions.

Are any other parts needed for installation?

When rebuilding an engine, you will typically need new main bearing bolts, assembly lube, and potentially other related engine components such as piston rings, gaskets, and seals. Always consult your vehicle's service manual for a complete list of required parts and procedures.

Specifications

Brand: King Engine Bearings
Part #: MB4532SV0.25
UPC: 611500608131

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

Name: King Engine Bearings Mercedes Benz Om 642.822/36/910/20/30/70 (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--t14-770401
Price: 291.43 USD
Availability: BackOrder

$291.43

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Key Features

Fits Mercedes Benz OM 642.822, 642.36, 642.910, 642.20, 642.30, and 642.70 engine variants.
This is a +0.25mm undersize bearing set, intended for use with a machined crankshaft.
Features King's TriArmor coating, a multi-layer surface treatment for improved wear resistance.
Constructed with a high-performance overlay material for durability and consistent oil clearance.
Designed to meet the demands of engine rebuilding applications.

This main bearing set is designed for specific Mercedes Benz OM 642 engine variants. Please verify your engine code to ensure compatibility.

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About this part

Product Details

King Engine Bearings is well-known for making solid engine components, and this main bearing set is a great example of their work for Mercedes-Benz OM642 engines. If you're rebuilding the bottom end of your engine, these bearings are designed to handle the loads and keep everything running smoothly. This set is specifically sized at +0.25mm, which is important if you've had your crankshaft machined to that size during the rebuild process.

These main bearings feature King's unique TriArmor coating, which is a multi-layer surface treatment that helps protect against wear and friction. The bearings are made with a high-performance overlay material that's designed to work well with various oil types and conditions. This construction helps ensure consistent oil clearance and durability, which is crucial for the longevity of your engine rebuild.

When you're putting your engine back together, using bearings that fit right and are built to last is key. This set is intended for specific OM642 engine variants, so make sure your engine code matches. Always refer to your vehicle's service manual or a professional mechanic for the correct installation procedures and any other components you might need for your engine rebuild.