What does '0.75mm undersize' mean for these bearings?

This means the bearings are manufactured to be 0.75mm smaller in diameter than standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.75mm to accommodate these bearings during an engine rebuild.

What is the tri-metal construction?

Tri-metal bearings use three distinct layers for optimal performance. They typically consist of a steel backing for strength, a copper-lead alloy layer to handle heavy loads, and a nickel-plated overlay that helps with oil retention and wear resistance.

Are these bearings suitable for a stock engine rebuild?

These bearings are a well-built option for both stock and performance-oriented rebuilds of BMW M20 and M60 engines. Their tri-metal construction offers improved durability and load handling compared to standard bearings.

Specifications

Brand: King Engine Bearings
Part #: CR6640SM0.75
UPC: 611500625886

King Engine Bearings BMW M20/M60 (Size +0.75mm) Connecting Rod Bearing Set

Name: King Engine Bearings BMW M20/M60 (Size +0.75mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-bmw-m20-m60-size-0-75mm-connecting-rod-t14-770004
Price: 130.62 USD
Availability: BackOrder

$130.62

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings CR6640SM0.75 connecting rod bearing set. These are 0.75mm undersize for BMW M20/M60 engines.

Key Features

This is a set of connecting rod bearings for BMW M20 and M60 engines.
The bearings are 0.75mm undersize, intended for use with a crankshaft ground to this specific dimension.
Features a tri-metal construction for improved load capacity and durability.
Includes a steel backing for structural integrity.
Incorporates a copper-lead alloy layer for effective load carrying.
Has a nickel-plated overlay to help retain oil.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

These King Engine Bearings connecting rod bearings are built with a unique tri-metal construction, combining a steel backing for strength, a copper-lead alloy for load carrying, and a nickel-plated overlay for improved oil retention. This combination helps them handle the demands of performance engines. They are specifically sized at 0.75mm undersize, which is crucial when rebuilding an engine that has had its crankshaft ground down to match this bearing size.

Designed for BMW M20 and M60 engines, these bearings are a well-built option for engine rebuilds. The tri-metal design is known for its durability and ability to withstand higher loads compared to standard bearings. Proper installation is key, ensuring the crankshaft journals are clean and within the specified tolerance for this 0.75mm undersize fitment.