What engine codes does this ACL main bearing set fit?

This ACL main bearing set is designed for BMW M20 engines, specifically the M20B20, M20B23, M20B25, and M20B27 engine codes. Always verify your engine code before purchasing.

Are these bearings for standard or oversized crankshaft journals?

This is a standard size main bearing set. It is crucial that your crankshaft journals are within the manufacturer's specified tolerances for standard size bearings. If your crankshaft has been machined, you may need an oversized set.

What is the material of these main bearings?

These ACL main bearings are made from a tri-metal material. This type of construction is known for its good embeddability and conformability, which helps the bearings withstand engine loads and maintain oil film.

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ACL BMW M20B20/M20B23/M20B25/M20B27 Standard Size Main Bearing Set

Specifications

Brand: ACL
Part #: 7M1539H-STD

ACL BMW M20B20/M20B23/M20B25/M20B27 Standard Size Main Bearing Set

Name: ACL BMW M20B20/M20B23/M20B25/M20B27 Standard Size Main Bearing Set
Brand: ACL
Price: 245.73 USD
Availability: InStock

$245.73

Only 2 left in stock

ACL standard size main bearing set for BMW M20 engines. Part# 7M1539H-STD. Direct fit for many BMW models.

Key Features

Fits numerous BMW 3 Series, 5 Series, M3, X3, X5, Z3, and Z4 models.
Standard size main bearing set for BMW M20 engines.
Tri-metal material construction for durability and performance.
Designed to meet original equipment specifications.
Suitable for M20B20, M20B23, M20B25, and M20B27 engine codes.
Includes all necessary main bearings for a complete engine rebuild.

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Will this fit your vehicle?

Product Details

When you're rebuilding or refreshing a BMW M20 engine, the main bearings are critical. These ACL bearings are built to the original equipment specifications, ensuring a proper fit and reliable performance for your M20B20, M20B23, M20B25, or M20B27 engine. They are manufactured with a tri-metal material that offers good embeddability and conformability, which helps them handle the stresses of daily driving and performance use. This set is for standard size journals, so make sure your crankshaft is within factory tolerances before installation. Using a well-built bearing set like this is key to a long-lasting engine rebuild.

This set includes all the main bearings needed for your M20 engine. It's important to follow the manufacturer's installation instructions carefully, including proper torque specifications and lubrication, to ensure the longevity of your engine rebuild.