King Engine Bearings Mazda Je06/Je27/Je39/Je48 (Size +0.75mm) Main Bearing Set

This King Engine Bearings main bearing set includes the necessary components to replace the main bearings in your 1989-1998 Mazda MPV. These bearings are designed for the JE06, JE27, JE39, and JE48 engine codes, and this particular set is machined 0.75mm oversize to accommodate crankshaft journals that have been ground down during a rebuild. They are constructed with a bimetal design, utilizing an aluminum base for good performance in your engine.

King Engine Bearings uses a bimetal construction for these main bearings, which is a common and well-regarded approach for many engine applications. This design typically involves a steel backing for strength and a bearing surface made from an aluminum-based alloy. This combination helps manage heat and wear effectively within the engine's rotating assembly. Since these are an oversize bearing set, they are intended for use when the crankshaft journals have been machined to a specific undersize to clean up wear or damage. Always ensure your crankshaft journals are properly measured and machined to the correct size before installing oversize bearings.