King Engine Bearings MB5128AM0.5 Main Bearing Set Oversize for Isuzu - 0.50mm 4XE1 4XF1 4XC1T

The King Engine Bearings MB5128AM0.5 is a +0.50mm oversize crankshaft main bearing set designed for Isuzu 4XE1, 4XF1, and 4XC1T engines. Built to OE-replacement standards, this set is an ideal solution for engine rebuilds where the crankshaft has been machined undersize and requires a correctly sized bearing to restore proper oil clearances and crankshaft support.

This bearing set belongs to King's AM Series, which utilizes an aluminum-based bi-metal construction — the softest bi-metal material in King's lineup. This material composition makes it especially well-suited for passenger car engines operating under low to medium load conditions, providing excellent conformability, embeddability, and surface compatibility with steel crankshafts.

Key Features:

• +0.50mm oversize — designed for use with crankshafts machined 0.50mm undersize
• AM Series bi-metal construction — aluminum-based material, ideal for OE-replacement applications
• Engineered for low to medium load passenger car engine applications
• Includes a full 5-pair main bearing set for complete crankshaft coverage
• Manufactured to precise dimensional tolerances for consistent oil film and load distribution
• King Engine Bearings — a bearing specialist with over 60 years of engine bearing expertise

King Engine Bearings has been producing precision engine bearings since 1960, with a product range covering automotive, light and heavy-duty truck, marine, aviation, and standby power applications. Every bearing is manufactured under one roof using high-quality materials and advanced engineering processes.

MPN: MB5128AM0.5 | Size: +0.50mm Oversize