What is the STDX size designation?

The STDX size indicates these bearings are 0.001 inch undersize on the main journals compared to standard bearings. This is often used to achieve tighter oil clearances on crankshafts that have been ground undersize.

What is the PMaxBlack overlay?

PMaxBlack is a specialized overlay developed by King Engine Bearings. It's designed to enhance the bearing's ability to withstand higher loads, making it suitable for performance engines.

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 your engine's crankshaft.

Specifications

Brand: King Engine Bearings
Part #: MB5734XPSTDX
UPC: 611500573804

King Engine Bearings Ford Mustang 302 Coyote (Size STDX) Performance Main Bearing Set

Name: King Engine Bearings Ford Mustang 302 Coyote (Size STDX) Performance Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-mustang-302-coyote-size-stdx-perf-t14-4402554
Price: 128.76 USD
Availability: BackOrder

$128.76

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.

Fits 2011-2017 Ford F-150/Mustang. King Engine Bearings STDX size performance main bearing set with PMaxBlack for superior load capacity.

Key Features

Fits 2011-2017 Ford F-150 and Ford Mustang.
Features PMaxBlack overlay for superior load capacity.
Includes Radialock design for optimal crush height.
Constructed with a tri-metal copper-based material.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

The STDX size main bearings from King Engine Bearings are built with a tri-metal copper-based material, offering a solid foundation for your engine's rotating assembly. These bearings are specifically designed for performance applications, aiming to handle increased loads and stresses that come with a tuned 302 Coyote engine. King has been specializing in bearings since 1960, focusing on supplying well-built engine bearings to the market.

These bearings feature King's PMaxBlack overlay, which is engineered to provide superior load capacity, helping to protect your crankshaft under demanding conditions. Additionally, the Radialock design helps maintain optimal crush height during installation, ensuring the bearing stays securely in place for consistent oil clearance. This combination of materials and design choices makes them a strong option for rebuilding or upgrading your F-150 or Mustang's engine.