What does the 'STDX' size mean for these bearings?

The STDX size on these King Engine Bearings means they are 0.001 inch undersize compared to standard size. This is important if your crankshaft has been machined undersize during an engine rebuild.

What material is used for the bearing overlay?

These bearings feature a high-performance overlay material. This material is chosen for its durability and ability to handle the pressures within the engine.

Are these bearings sold individually or as a set?

This is a main bearing set, meaning it includes all the necessary bearings to replace the main bearings for the Toyota Supra B58 engine.

FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW →

Questions? Call Us:631-982-0042

M-F 8AM-4PM ET

Trusted Since 1957

Est. 1957

Specifications

Brand: King Engine Bearings
Part #: MB7779MCSTDX
UPC: 611500626746

King Engine Bearings Toyota Supra B58 Main Bearing Set - Size STDX

Name: King Engine Bearings Toyota Supra B58 Main Bearing Set - Size STDX
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-supra-b58-main-bearing-set-size-t14-432605
Price: 113.59 USD
Availability: BackOrder

$113.59

On Backorder — Expected to ship by Apr 26, 2026

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

Key Features

This is a King Engine Bearings main bearing set for the Toyota Supra B58 engine.
The STDX size indicates these bearings are 0.001 inch undersize.
Features a high-performance overlay material for improved durability.
Designed to maintain proper oil clearance for the crankshaft.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

The STDX designation on these King Engine Bearings means they are precisely 0.001 inch undersize, which is crucial for rebuilding an engine where the crankshaft journals have been machined to match. These main bearings are built for the Toyota Supra's B58 engine, a popular choice for performance builds. They are designed to provide a solid foundation for the rotating assembly, ensuring proper oil clearance and support for the crankshaft.

King Engine Bearings uses a high-performance overlay material on these bearings, which is known for its durability and ability to withstand the pressures found in performance applications. The goal is to maintain a consistent oil film between the bearing and the crankshaft, reducing friction and wear. This well-built set is a popular option for engine builders looking for reliable components for their B58 rebuilds.