King Engine Bearings Isuzu 4Xc1/T/4Xe1W (Size +1.0mm) Main Bearing Set

If you're rebuilding the engine in your 1985-1989 Isuzu I-Mark, or a compatible Chevrolet Spectrum, Geo Spectrum, Isuzu Impulse, or Isuzu Stylus, this Main Bearing Set from King Engine Bearings is what you need. These bearings are critical for the rotating assembly, supporting the crankshaft within the engine block and ensuring smooth operation. This set is specifically sized at +1.0mm, meaning it's intended for use when the crankshaft journals have been machined to this dimension during an engine rebuild.

King Engine Bearings uses a bimetal construction with an aluminum base for these main bearings. This design helps manage heat and provides good wear characteristics for the demanding environment inside an engine. They are designed to fit the 4XC1/T and 4XE1W engine families, ensuring proper contact and oil clearance when installed correctly. Using the correct size bearings is crucial for maintaining proper oil pressure and preventing premature wear on your crankshaft and block.

When rebuilding an engine, it's important to ensure all components are clean and properly lubricated before installation. This main bearing set is a key part of ensuring the longevity and performance of your engine rebuild.