King Racing Main Bearing Set – Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo)

Designed for high-performance Subaru engines, the King Racing MB5382XPGC Main Bearing Set is the ideal upgrade for motorsport applications, including circle track, drag racing, off-shore, and other builds running steel crankshafts. This premium XPC Series bearing features critical design improvements to ensure oil stability, load support, and long-term durability under extreme conditions.

Built with King’s pMaxBlack™ overlay for increased hardness and fatigue strength, and finished with the pMaxKote™ ceramic nano-composite coating, this bearing offers exceptional wear and seizure resistance without affecting wall thickness or precision tolerances.

An upgraded internal groove design, SmartLug technology, and additional oil slots address common oil starvation concerns found in EJ-series engines. This set is engineered for engines with thrust located in position #5.

Key features

• Application: Subaru EJ20 / EJ22 / EJ25 (incl. turbo)

• Part number: MB5382XPGC

• Suits engines with thrust bearing in position #5

• Full oil groove, SmartLug and oil slot enhancements for improved oil flow

• pMaxBlack™ overlay for strength and fatigue resistance

• pMaxKote™ ceramic coating for reduced friction and extended bearing life

• Designed for high-load steel crankshaft applications

Bearing dimensions

• Crankshaft diameter: 60.00 / 59.98 mm (2.3622 / 2.3616 inch)

• Housing diameter: 64.02 / 64.00 mm (2.5205 / 2.5197 inch)

• Thickness: 2.004 mm (0.0789 inch)

• Bearing length:

  • Positions 1 & 3: 19.0 mm (0.748 inch)

  • Positions 2 & 4: 15.1 mm (0.595 inch)

  • Position 5: 23.0 mm (0.904 inch)

Available sizes

• STD (Standard): For standard crankshaft journals

• STDX (Standard Extra): Slightly reduced clearance for tighter tolerance builds

• 0.25 mm Undersize: For journals machined 0.25 mm smaller

• 0.026 mm Extra Clearance: Slightly increased clearance for high-RPM oil control

• 0.5 mm: For significantly undersized crankshaft journals (availability may vary)

Important note
Always verify crankshaft and housing dimensions before selecting bearing sizes. This set is engineered specifically for engines using a thrust bearing in position #5 and may not suit other configurations.