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

The +0.25mm sizing indicates that these bearings are designed for a crankshaft that has been machined down by 0.25mm. This is typically done during an engine rebuild to correct wear or damage on the crankshaft journals, providing a fresh surface for the new bearings.

What is trimetal construction?

Trimetal bearings feature three layers: a steel backing for strength, a middle layer of copper-lead alloy for load carrying capacity, and a thin overlay of babbitt (a soft alloy) for embeddability and reduced friction. This construction is well-suited for high-performance engine applications.

Do these bearings come with installation instructions?

While these bearings are designed as a direct replacement for the specified Subaru engines, it is always recommended to refer to the manufacturer's official service manual or installation guide for detailed procedures, torque specifications, and any specific preparation steps required for your engine build.

Specifications

Brand: King Engine Bearings
Part #: CR4280CP0.25
UPC: 611500534430

King Engine Bearings Subaru Ej20/Ej22/Ej25 (Incl. Turbo) (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings Subaru Ej20/Ej22/Ej25 (Incl. Turbo) (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-subaru-ej20-ej22-ej25-incl-turbo-size--t14-769696
Price: 53.79 USD
Availability: BackOrder

$53.79

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King Engine Bearings Connecting Rod Bearing Set CR4280CP0.25 for Subaru EJ20/EJ22/EJ25 engines. These are +0.25mm undersize bearings.

Key Features

Fits Subaru EJ20, EJ22, and EJ25 engines, including turbocharged variants.
This is a +0.25mm undersize connecting rod bearing set, intended for use on machined crankshaft journals.
Constructed with a durable trimetal material for strength and wear resistance.
Designed to handle the pressures and temperatures typical of Subaru EJ series engines.
A popular choice for engine rebuilds and performance applications.
Includes bearings for one set of connecting rods.

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About this part

Product Details

If you're rebuilding the engine in your Subaru EJ20, EJ22, or EJ25, including turbocharged models, these King Engine Bearings connecting rod bearings are a solid option. They are specifically sized at +0.25mm, meaning they are meant to be installed on a crankshaft that has been machined down by 0.25mm. This is a common practice when an engine has experienced bearing wear or damage, allowing for a fresh, properly sized bearing surface.

These bearings are constructed with a trimetal material, which is known for its strength and ability to handle the high pressures and temperatures found in performance engines. The trimetal design offers good embeddability for dirt and debris, while also providing excellent wear resistance. King Engine Bearings are a popular choice for many engine builders because they offer a good balance of performance and value for a wide range of applications, from daily drivers to more performance-oriented builds.

This set is designed to fit a variety of Subaru vehicles, including models like the Forester, Impreza, and Legacy, among others. Always ensure your crankshaft journals have been properly machined to the correct undersize before installing these bearings for optimal performance and longevity.