What does the .005 inch undersize sizing mean for my engine?

The .005 inch undersize sizing indicates that these bearings are meant to be used when the engine's main bearing journals have been machined down by 0.005 inches. This is a common practice during engine rebuilding to ensure proper oil clearance and lubrication.

What is the XP-GLIDE material?

XP-GLIDE is a specialized overlay material developed by King Engine Bearings. It's designed to offer superior durability and performance, especially under high-pressure and high-temperature conditions often encountered in performance or rebuilt engines.

What vehicles typically use the Subaru FA20 or Toyota 4U-GSE engines?

The Subaru FA20 engine is found in various Subaru models like the WRX and BRZ, while the Toyota 4U-GSE is essentially the same engine used in the Toyota GT86 and Scion FR-S. These bearings are intended for those specific engine applications.

Specifications

Brand: King Engine Bearings
Part #: MB5799XPG.026
UPC: 611500606519

King Engine Bearings Subaru FA20/ Toyota 4U-GSE/ O/S Housing .005 (Size 0.26) Main Bearing Set

Name: King Engine Bearings Subaru FA20/ Toyota 4U-GSE/ O/S Housing .005 (Size 0.26) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-subaru-fa20-toyota-4u-gse-o-s-housing--t14-432518
Price: 137.95 USD
Availability: BackOrder

$137.95

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King Engine Bearings Main Bearing Set MB5799XPG.026. Features .005 inch undersize sizing.

Key Features

This set includes main bearings that are 0.005 inches undersize (Size 0.26).
Designed for Subaru FA20 and Toyota 4U-GSE engines.
Features an oversized housing application.
Utilizes King's XP-GLIDE overlay material for enhanced durability and performance.
Helps achieve proper oil clearance when main bearing journals have been machined.

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About this part

Product Details

This is a King Engine Bearings Main Bearing Set, part number MB5799XPG.026. This set includes main bearings that are 0.005 inches undersize, also noted as size 0.26. These bearings are designed for Subaru FA20 and Toyota 4U-GSE engines, specifically for an oversized housing application.

King Engine Bearings uses a specialized overlay material called XP-GLIDE that is designed for high performance and durability. This material is known for its ability to withstand extreme pressures and temperatures often found in performance or rebuilt engines. The .005 inch undersize sizing is crucial when the engine's main bearing journals have been machined down to true them up after wear or damage. Using undersize bearings ensures the correct oil clearance is achieved for proper lubrication and engine longevity.