Premium J24B Main Bearing for Suzuki J24B Engine

High-precision CNC machined bearing with superior-grade alloy steel construction for unmatched durability under extreme loads. Features micro-groove lubrication technology to minimize friction and prevent overheating during high-RPM operation.

Direct OEM replacement (12301-78820 / M659A) with laser-engraved part numbers for flawless compatibility with Suzuki J24B crankshaft assemblies. Includes anti-corrosion coating for extended lifespan in humid or off-road conditions.

Ideal for engine rebuilds, performance upgrades, or industrial machinery maintenance. Ships in vacuum-sealed packaging with ISO-certified dimensional accuracy (±0.001mm). Bulk discounts available for automotive workshops and wholesale buyers.