What does the +.026mm sizing mean for these bearings?

The +.026mm designation indicates that these bearings are slightly smaller than standard size, specifically by 0.026 millimeters. This sizing is used when the engine's crankshaft journals have been machined down by that amount during an overhaul or rebuild.

What is the XP material used in these bearings?

XP (Xtreme Performance) material is a well-built overlay developed by King Engine Bearings. It's designed to offer enhanced durability and performance for critical engine components like main bearings.

Are these bearings a direct replacement for stock size?

No, these are an undersize bearing set. They are intended for use when the crankshaft has been machined undersize during an engine rebuild. Always verify your crankshaft journal size before ordering bearings.

Specifications

Brand: King Engine Bearings
Part #: MB4272XP.026
UPC: 611500614019

King Engine Bearings Holden Alloytec 175/190 (Size +.026mm) Main Bearing Set

Name: King Engine Bearings Holden Alloytec 175/190 (Size +.026mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-holden-alloytec-175-190-size-026mm-mai-t14-770383
Price: 119.48 USD
Availability: BackOrder

$119.48

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King Engine Bearings Holden Alloytec 175/190 (Size +.026mm) Main Bearing Set. This is a .026mm undersize bearing set for Holden Alloytec 175/190 engines.

Key Features

This product is a .026mm undersize main bearing set.
Designed for Holden Alloytec 175/190 engines.
Features King Engine Bearings' XP (Xtreme Performance) material for durability.
The .026mm sizing is intended for use with a machined crankshaft.

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About this part

Product Details

This package contains a set of King Engine Bearings main bearings, specifically sized at +.026mm (which is roughly 0.001 inches undersize). These bearings are intended for Holden Alloytec 175/190 engines, crucial components for the proper function of your engine's crankshaft.

King Engine Bearings uses their XP (Xtreme Performance) material for these bearings, which is a well-built overlay designed for enhanced durability. The .026mm undersize means these bearings are meant to be used when the crankshaft journals have been machined down by that amount during an engine rebuild. This precise sizing ensures a proper oil clearance, which is critical for lubricating and protecting the crankshaft as it spins.