What does the +0.05mm sizing mean for these bearings?

The +0.05mm sizing indicates that these bearings are designed for a crankshaft that has been machined down by 0.05mm. This allows for proper oil clearance when using a worn or reconditioned crankshaft.

What is the P-GLIDE overlay?

The P-GLIDE overlay is a unique, 0.0005-inch thick material applied by King Engine Bearings. It's designed to provide a durable surface that helps reduce friction and wear between the bearing and the crankshaft.

Are these bearings suitable for high-performance applications?

These bearings are well-built and feature a specialized overlay designed to handle engine demands, making them a solid option for engine rebuilding projects, including those with performance modifications.

Specifications

Brand: King Engine Bearings
Part #: MB5799XPG0.5
UPC: 611500620263

King Engine Bearings Subaru FA20/ Toyota 4U-GSE/ O/S Housing Main Bearing Set - Size +0.05mm

Name: King Engine Bearings Subaru FA20/ Toyota 4U-GSE/ O/S Housing Main Bearing Set - Size +0.05mm
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-subaru-fa20-toyota-4u-gse-o-s-housing--t14-432520
Price: 137.95 USD
Availability: BackOrder

$137.95

On Backorder — Expected to ship by Sep 16, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings Subaru FA20/Toyota 4U-GSE main bearing set, sized +0.05mm. Essential for rebuilding or repairing your engine's bottom end.

Key Features

This is a King Engine Bearings main bearing set for Subaru FA20 and Toyota 4U-GSE engines.
The set is sized +0.05mm, intended for use with a crankshaft machined to that undersize.
Features King's P-GLIDE overlay, a 0.0005-inch thick material designed to reduce friction and wear.
Well-built bearings offer a solid foundation for engine rebuilding projects.

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About this part

Product Details

If you're rebuilding the bottom end of your Subaru FA20 or Toyota 4U-GSE engine, getting the main bearings right is critical. These King Engine Bearings are specifically sized at +0.05mm, meaning they're designed to compensate for a crankshaft that's been machined down by that amount. Proper bearing clearance is key to oil flow and preventing premature wear, ensuring your engine runs smoothly and reliably.

King uses a unique P-GLIDE overlay with a thickness of 0.0005 inches, which is a tough, multi-layer material that helps reduce friction and wear. This overlay is designed to work well with various crankshaft materials and oil types, offering a solid option for your build. The bearings are well-built to handle the demands of performance engines, providing a reliable foundation for your engine's rotating assembly.