King Engine Bearings MB 495AM0.5 Main Bearing Set 0.5mm Undersize

The King Engine Bearings MB 495AM0.5 is a complete OE-replacement main bearing set for the Nissan VG30D engine, supplied in a 0.5mm undersize to accommodate reground or worn crankshaft journals. This set includes 4 pairs of precision-manufactured bi-metal bearings engineered to restore factory clearances and extend engine service life.

Key Features:

• AM-Series Bi-Metal Construction: Utilizes King's K-783 aluminum-based bearing material, equivalent to SAE-783 specification — the softest bi-metal in King's lineup, offering excellent conformability and embedability
• 0.5mm Undersize: Designed for use with crankshafts that have been reground 0.5mm under standard journal diameter
• 4 Pairs Included: Complete main bearing set covering all journal positions
• Lead-Free Formulation: Environmentally safe composite material free of lead compounds
• OE Replacement Grade: Well-suited for naturally aspirated passenger car and light-duty engines operating under low to medium loads
• Precision Manufactured: Built to exacting tolerances for consistent oil film thickness and reliable crankshaft support

Cross-reference part numbers include: ACL 4M2737H, MS-1951P (Clevite), 7322M (Federal-Mogul), and MS-1219GP (NDC). OEM Nissan reference numbers include 12207-30P00, 12207-30P10, 12214-02P00, 12214-40V00, 12230-02P00, 12261-02P00, and 12263-30P00.

King Engine Bearings AM-Series main and rod bearings are the recommended choice for street and marine rebuild applications, delivering dependable OE-quality performance backed by King's decades of engine bearing expertise.