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

The +0.25mm sizing means these bearings are intended for use when the engine's main journals have been machined down by 0.25mm. This is a common practice during engine rebuilding to address wear or minor damage on the crankshaft journals.

What is the XP series overlay?

The XP series bearings feature a specialized overlay material developed by King Engine Bearings. This overlay is designed to offer enhanced wear resistance and a greater capacity to handle loads, which helps protect the crankshaft and extend the life of the bearing.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings required for a complete engine installation for the specified Holden Alloytec 175/190 engines.

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Specifications

Brand: King Engine Bearings
Part #: MB4272XP0.25
UPC: 611500614033

King Engine Bearings Holden Alloytec 175/190 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Holden Alloytec 175/190 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-holden-alloytec-175-190-size-0-25mm-ma-t14-770384
Price: 119.48 USD
Availability: BackOrder

$119.48

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 Holden Alloytec 175/190 (Size +0.25mm) Main Bearing Set. This is a +0.25mm undersize set for Holden Alloytec 175/190 engines.

Key Features

This is a +0.25mm undersize main bearing set.
Designed for Holden Alloytec 175/190 engines.
Features King's XP series overlay for improved wear resistance.
Supports the crankshaft and ensures proper oil clearance.

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About this part

Product Details

In this kit, you get a set of main bearings from King Engine Bearings, specifically sized at +0.25mm for Holden Alloytec 175/190 engines. These bearings are crucial for the rotating assembly, supporting the crankshaft and ensuring it spins smoothly within the engine block. Getting the right size bearing is critical for proper oil clearance, which is essential for engine longevity and performance.

King Engine Bearings is known for its well-built components, and this set is no exception. The XP series bearings are designed with a specialized overlay material that offers improved wear resistance and load-carrying capacity compared to standard bearings. This means they can handle the stresses of engine operation effectively, helping to protect your crankshaft from damage. The +0.25mm sizing indicates these are intended for use when the main journals have been machined down by 0.25mm during an engine rebuild to clean up wear or damage.