What does the 0.25mm oversize mean for my engine?

The 0.25mm oversize designation means these bearings are slightly larger than standard. They are intended for use when the engine's crankshaft journals have been machined down by 0.25mm to remove wear or damage. This ensures the correct clearance between the bearing and the crankshaft.

What is the bimetal construction with an aluminum base?

This refers to the material used for the bearing surface. Bimetal bearings typically have a steel backing for strength and a bearing material layer on top. In this case, the bearing material layer is an aluminum-based alloy, which is well-suited for the demands of connecting rod journals.

Do these bearings come with installation instructions?

While these bearings are designed as a direct replacement, it is always recommended to refer to the vehicle manufacturer's service manual or King Engine Bearings' installation guidelines for proper torque specifications and procedures.

Specifications

Brand: King Engine Bearings
Part #: CR4497AM1.25
UPC: 611500138157

King Engine Bearings Mitsubishi 4G12 (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings Mitsubishi 4G12 (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-4g12-size-0-25mm-connecting-t14-769844
Price: 29.45 USD
Availability: BackOrder

$29.45

On Backorder

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

Fits 1979-1988 Dodge Colt. King Engine Bearings connecting rod bearing set, 0.25mm oversize, made with an aluminum base bimetal construction for reliable engine performance.

Key Features

Fits 1979-1988 Dodge Colt, 1985-1988 Mitsubishi Mirage, 1979-1982 Plymouth Champ, and 1983-1988 Plymouth Colt.
Set is 0.25mm oversize for use with reconditioned or machined crankshaft journals.
Constructed with a bimetal design featuring an aluminum base.
Designed for the Mitsubishi 4G12 engine.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

About this part

Product Details

These King Engine Bearings connecting rod bearings are built with a bimetal construction that uses an aluminum base. This setup is specifically for the Mitsubishi 4G12 engine, and this set is machined to be 0.25mm oversize. If you're rebuilding the bottom end of your 1979-1988 Dodge Colt, 1985-1988 Mitsubishi Mirage, 1979-1982 Plymouth Champ, or 1983-1988 Plymouth Colt, these bearings are a solid option to ensure proper clearances and oil flow.

The bimetal design with an aluminum base is a common and effective way to handle the loads and temperatures within an engine's connecting rod journals. Having them precisely machined to an oversize like 0.25mm is crucial when the crankshaft journals have been reconditioned or machined down to compensate for wear. This ensures a snug, yet correctly toleranced fit, which is key for maintaining oil pressure and preventing premature wear on your engine's rotating assembly.