What does the +0.25mm size mean for these bearings?

The +0.25mm designation indicates that these bearings are intended for use when the engine's crankshaft has been machined down by 0.25mm. This is a common practice during engine rebuilds to ensure proper oil clearance with worn or reconditioned crankshafts.

What is the bimetal aluminum base construction?

Bimetal construction typically involves a steel backing for strength and an aluminum-based overlay for bearing surface properties. This design helps manage heat and provides good wear characteristics for main bearings.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings to service the crankshaft in your engine. You will receive the complete set required for installation.

King Engine Bearings Main Bearing Set MB5403AM0.25

Name: King Engine Bearings Mitsubishi 4G63/T/4G64 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-4g63-t-4g64-size-0-25mm-mai-t14-770684
Price: 52.88 USD
Availability: BackOrder

King Engine Bearings Mitsubishi 4G63/T/4G64 (Size +0.25mm) Main Bearing Set

$52.88

On Backorder

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

King Engine Bearings main bearing set for Mitsubishi 4G63/T and 4G64 engines. Size +0.25mm. For engine rebuilds.

Key Features

Fits Mitsubishi 4G63/T and 4G64 engines.
Main bearing set is +0.25mm undersize.
Constructed with a bimetal aluminum base.
Designed for crankshaft support and smooth rotation.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

Built with a bimetal aluminum base, this main bearing set from King Engine Bearings is designed for Mitsubishi 4G63/T and 4G64 engines. These bearings are crucial for supporting the crankshaft within the engine block, ensuring it spins smoothly and without excessive friction. This particular set is sized +0.25mm, meaning it's intended for crankshafts that have been machined to that specific undersize during an engine rebuild.

King Engine Bearings uses a bimetal construction, which is a common and effective material choice for main bearings. This design helps manage heat and provides a solid foundation for the bearing surface. When you're rebuilding an engine, getting the right bearing size is critical for proper oil clearance and long-term durability. This set is a well-built option for those looking to restore their engine's bottom end.

This main bearing set fits a range of vehicles, including models like the Dodge Stratus, Mitsubishi Eclipse, and Mitsubishi Lancer. Always confirm fitment for your specific application before ordering.