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

The +0.25mm sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm. This is a common practice during engine rebuilds to clean up worn or damaged journal surfaces.

What is the construction of these main bearings?

These main bearings feature a bimetal construction, utilizing an aluminum base. This design is chosen for its performance characteristics in the specific applications these bearings are intended for.

Are these bearings a direct replacement for all Mazda engines?

No, these are specific main bearings for certain Mazda VB, VC, MA, NA, UB, and VA engine codes, as well as some Ford Courier models. It's important to confirm your engine code and crankshaft journal condition before purchasing.

King Engine Bearings Main Bearing Set MB572AM1.25

Name: King Engine Bearings Mazda Vb/Vc/Ma/Na/Ub/Va (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
Price: 48.82 USD
Availability: InStock

King Engine Bearings Mazda Vb/Vc/Ma/Na/Ub/Va (Size +0.25mm) Main Bearing Set

$48.82

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King Engine Bearings main bearing set for Mazda VB, VC, MA, NA, UB, VA engines. Size +0.25mm.

Key Features

Fits a range of Mazda and Ford Courier vehicles.
Main bearing set for engine bottom end rebuilds.
Bimetal construction with an aluminum base.
Sized at +0.25mm for use with machined crankshaft journals.
Manufacturer part number MB572AM1.25.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your Mazda or Ford Courier engine, a fresh set of main bearings is crucial. This set from King Engine Bearings is designed to replace the worn originals, helping to ensure proper crankshaft support and oil clearance. These bearings are made with a bimetal construction, using an aluminum base for good performance in these applications.

This particular set is sized at +0.25mm, meaning it's intended for use when the crankshaft journals have been machined down by 0.25mm to clean them up. It's important to match the bearing size to the machined size of your crankshaft. King Engine Bearings are a popular choice for engine rebuilds, offering a well-built component to get your engine running smoothly again.

This main bearing set fits a range of vehicles, including models like the Mazda 626, Mazda B1600, and Ford Courier from various years. Always confirm fitment for your specific vehicle and ensure your crankshaft journals have been machined to the correct +0.25mm size before installation.