King Engine Bearings MB 535AM1.0 Main Bearing Set Toyota 2A 3A 4A 1.0mm Oversize

The King Engine Bearings MB 535AM1.0 is an OE-replacement bi-metal main bearing set designed for Toyota 2A, 3A, and 4A series engines. This set is offered in a +1.0mm oversize to accommodate reground crankshafts during engine rebuilds.

AM Series — Aluminum-Based Bi-Metal Construction:

• Bi-metal design featuring King's standard aluminum-based material — the softest bi-metal in King's lineup
• Lead-free composition for an environmentally responsible, safer alternative to traditional bearing materials
• Well-suited for passenger car engines operating under low to medium loads
• Equivalent to SAE-783 aluminum alloy specification
• Set includes 5 pairs of main bearing shells

King Bull's Eye Tolerance™ Technology:

• Proprietary manufacturing process combining highly accurate machining, overplating, and computerized wall thickness monitoring
• Real-time in-process adjustment ensures consistent, precise bearing dimensions
• Engineered to meet or exceed OEM specifications for reliable crankshaft support and oil film retention

King Engine Bearings are engineered specifically for the aftermarket, offering a wider range of undersizes and material options than OEM suppliers. The MB 535AM1.0 is the ideal choice for a quality, cost-effective engine rebuild using a reground crankshaft.