What does the +.75 sizing mean for these rod bearings?

The +.75 sizing indicates that these bearings are slightly larger than standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.00075 inches (or 0.75mm, depending on the manufacturer's convention for this specific size) to account for wear or to prepare for a performance build.

What is the benefit of a silver-based overlay on these bearings?

A silver-based overlay on engine bearings offers improved load-carrying capacity and enhanced wear resistance. This makes them particularly suitable for performance engines that experience higher stresses and temperatures than stock applications.

Do these bearings come with installation hardware?

This product is for the rod bearing set only. Installation hardware, such as new rod bolts, is typically sold separately and should be sourced according to your vehicle's service manual recommendations.

King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.75)

Specifications

Brand: King Engine Bearings
Part #: CR6887SV0.75
UPC: 611500594069

King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.75)

Name: King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.75)
Brand: King Engine Bearings
Price: 173.82 USD
Availability: InStock

$173.82

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King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.75). Silver-based bearings for improved engine performance.

Key Features

Fits 14+ BMW models with B58B30A engine.
Rod bearing set sized at +.75 for crankshaft wear or machining.
Features a silver-based overlay for improved load capacity and wear resistance.
Multi-layer bearing technology for enhanced durability.
Designed for performance applications.

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Will this fit your vehicle?

Product Details

These King Engine Bearings rod bearings are built with a silver-based overlay, a design choice that helps them handle the increased loads and temperatures common in performance applications for the BMW B58B30A engine. They are precisely sized at +.75, meaning they are designed to compensate for crankshaft wear or to be used with a crankshaft that has been machined to this specific dimension. This set is engineered to fit a wide range of BMW models equipped with the B58B30A engine, including popular vehicles like the 340i, 440i Gran Coupe, and 540i.

When you're rebuilding the bottom end of a performance BMW engine, the rod bearings are a critical component. King uses a multi-layer bearing technology, with the silver-based overlay providing a strong, durable surface that resists wear and maintains its integrity under stress. This attention to material science and precise sizing ensures that these bearings will perform reliably, helping to keep your engine running smoothly and efficiently.

If you're working on a B58B30A engine that requires bearings to be replaced or if you're performing a performance build, this set offers a well-built option. Always refer to your vehicle's service manual for specific installation procedures and torque specifications to ensure proper fitment and function.