What is the STDX size designation?

The STDX designation indicates that these main bearings are 0.001 inch undersize. This is a common size for engine rebuilds where the crankshaft journals may have been machined to a specific undersize.

What is the PMaxBlack coating for?

The PMaxBlack coating is applied to enhance the bearing's ability to withstand higher loads. This is beneficial in performance applications or engines that experience significant stress.

Does this bearing set include everything needed for installation?

This product includes the main bearings themselves. It is recommended to consult the manufacturer's installation guide for any additional components or preparation steps required for proper installation.

King 1992+ Mitsubishi 4G63/4G64 EVO I-IV Coated Performance Main Bearing Set - Size STDX

Specifications

Brand: King Engine Bearings
Part #: MB5315XPCSTDX
UPC: 611500612961

King 1992+ Mitsubishi 4G63/4G64 EVO I-IV Coated Performance Main Bearing Set - Size STDX

Name: King 1992+ Mitsubishi 4G63/4G64 EVO I-IV Coated Performance Main Bearing Set - Size STDX
Brand: King Engine Bearings
Price: 73.48 USD
Availability: InStock

$73.48

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.

King Engine Bearings performance main bearing set for Mitsubishi 4G63/4G64 EVO I-IV. Size STDX. Built with PMaxBlack for superior load capacity.

Key Features

Fits 1992+ Mitsubishi 4G63 and 4G64 engines, including EVO I-IV models.
Features King's PMaxBlack coating for improved load capacity.
Constructed with a tri-metal copper-based material for durability.
Utilizes Radialock design for optimal crush height and proper oil clearance.

⚠️ 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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Will this fit your vehicle?

Product Details

This is a set of King Engine Bearings performance main bearings, specifically sized STDX. You get the main bearings needed to rebuild the bottom end of your Mitsubishi 4G63 or 4G64 engine, commonly found in models like the Eclipse, Lancer, and Galant. These bearings are crucial for supporting the crankshaft and ensuring smooth rotation within the engine block.

King has been specializing in bearings since 1960, and this set features their PMaxBlack coating, which helps handle higher loads. They also use a tri-metal copper-based material for durability and a Radialock design to maintain the correct crush height during installation, which is important for proper oil clearance and bearing function. This set is designed to fit a range of vehicles, including the Dodge Stratus, Hyundai Sonata, and Mitsubishi Eclipse.