King Engine Bearings MB 535AM0.25 Main Bearing Set 0.25mm Oversize

The King Engine Bearings MB 535AM0.25 is an OE-replacement main bearing set in a +0.25mm oversize specification, designed for Toyota 2A, 3A, and 4A series engines. Part of King's AM Series, these bearings are engineered to deliver reliable, long-lasting crankshaft support in passenger car applications.

Key Features:

• Bi-Metal Aluminum Construction: Features King's standard aluminum-based material — the softest bi-metal in King's lineup — equivalent to SAE-783, well-suited for low to medium load engines
• Lead-Free Material: Environmentally responsible, lead-free composite construction for safer handling and disposal
• OE Replacement Grade: Direct drop-in replacement for worn or damaged factory main bearings during engine rebuilds
• Bull's Eye Tolerance™ Technology: King's proprietary manufacturing process combines precision machining, overplating, and computerized wall thickness monitoring for consistent, accurate sizing
• Set Includes: 5 pairs (upper and lower half-shells) for a complete main bearing replacement
• Size: +0.25mm oversize for use with crankshafts ground 0.25mm undersize

King Engine Bearings has been a trusted name in precision engine bearings since 1960, supplying the automotive, marine, aviation, and racing industries. The MB 535AM0.25 is an ideal choice for mechanics performing a full engine rebuild on Toyota 2A, 3A, or 4A series powerplants requiring a first undersize.