What does the +0.25mm sizing mean for this bearing set?

The +0.25mm sizing indicates that these bearings are intended for a crankshaft that has been machined down by 0.25mm. This is a common practice during engine rebuilds when crankshaft journals have wear or damage and need to be re-ground to a specific undersize.

What is the construction of these main bearings?

These main bearings are constructed with a bimetal design on an aluminum base. This type of construction is chosen for its ability to handle engine loads and temperatures effectively.

Are these bearings a direct replacement for all Mazda MPV models?

This set is specifically designed for Mazda MPV models from 1989-1998 and Mazda 929 models from 1988-1995 that use the JE06, JE27, JE39, or JE48 engine codes. It's important to confirm your specific engine code for proper fitment.

Specifications

Brand: King Engine Bearings
Part #: MB474AM0.25
UPC: 611500158711

King Engine Bearings Mazda Je06/Je27/Je39/Je48 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Mazda Je06/Je27/Je39/Je48 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mazda-je06-je27-je39-je48-size-0-25mm--t14-770440
Price: 51.05 USD
Availability: BackOrder

$51.05

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Fits 1989-1998 Mazda MPV. This main bearing set features a bimetal aluminum base construction for reliable engine performance.

Key Features

Fits 1989-1998 Mazda MPV and 1988-1995 Mazda 929.
Includes main bearings for Mazda JE06, JE27, JE39, and JE48 engine codes.
Features a bimetal construction with an aluminum base for durability.
This set is sized +0.25mm, intended for use with machined crankshaft journals.

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About this part

Product Details

This main bearing set from King Engine Bearings includes the components you need to replace the main bearings in your 1989-1998 Mazda MPV. These bearings are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block. The set is designed for Mazda engines identified by codes JE06, JE27, JE39, and JE48, which cover specific models including the 929 and MPV.

Built with a bimetal construction on an aluminum base, these bearings offer a well-built solution for engine rebuilding or repair. This material choice helps manage heat and provides a solid foundation for the crankshaft's rotation. This specific set is sized at +0.25mm, meaning it's intended for crankshafts that have been machined to this undersize during an engine rebuild. Always ensure your crankshaft journals are properly measured and machined to the correct size before installing bearings.