What does the +.25 sizing mean for these bearings?

The +.25 sizing means these bearings are 0.00025 inches larger in diameter than a standard-sized bearing. This is used when the crankshaft journals have been machined undersize during an engine rebuild to achieve the correct bearing clearance.

What is the material of these bearings?

These bearings are constructed with a silver-based material. This type of material is chosen for its good performance characteristics in high-stress engine applications.

Are these bearings suitable for a stock engine rebuild?

Yes, these bearings are suitable for both stock engine rebuilds and performance applications. The silver-based material and precise sizing offer improved durability and performance over standard bearings.

King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.25)

Specifications

Brand: King Engine Bearings
Part #: CR6887SV0.25
UPC: 611500591464

King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.25)

Name: King Engine Bearings BMW B58B30A Performance Rod Bearing Set (Size +.25)
Brand: King Engine Bearings
Price: 173.82 USD
Availability: InStock

$173.82

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King Engine Bearings performance rod bearing set for BMW B58 engines. Size +.25.

Key Features

Fits 14+ vehicle make/model combinations with the BMW B58B30A engine.
Rod bearing set with a +.25 undersize, meaning 0.00025 inches larger than standard.
Constructed with a silver-based material for improved performance and durability.
Designed for engine rebuilding and performance applications.
Part number CR6887SV0.25 from King Engine Bearings.

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Will this fit your vehicle?

Product Details

This is a King Engine Bearings performance rod bearing set, specifically sized at +.25 for the BMW B58B30A engine. These bearings are built with a silver-based material, offering a well-built option for rebuilding or upgrading your engine's connecting rod assembly. They are designed to handle the demands of performance applications, providing a solid foundation for your engine's rotating assembly.

The +.25 sizing indicates these bearings are slightly larger than standard, intended for use when the crankshaft journals have been machined undersize by 0.00025 inches. This is a common practice during engine rebuilds to ensure proper clearances and oil film thickness. King Engine Bearings are known for their durable construction and attention to detail, making them a popular choice for enthusiasts looking for reliable internal engine components. This set fits a wide range of BMW models equipped with the B58B30A engine, including vehicles like the 340i, 440i, and 540i.