King Engine Bearings MB5740XPG0.25 pMaxBlack Tri-Metal Main Bearing Set EJ20 EJ22 EJ25 +0.25mm

The King Engine Bearings MB5740XPG0.25 is a race-grade tri-metal main bearing set engineered for Subaru EJ20, EJ22, and EJ25 engines. This set is sized for a housing bore oversize of +0.005 inch (+0.25mm), making it ideal for engine rebuilds requiring a corrected or oversized housing bore.

Constructed using King's proprietary pMaxBlack™ tri-metal technology, these bearings feature a unique layered structure designed to withstand the extreme loads and high RPM demands of performance and racing applications. The pMaxBlack™ overlay undergoes a proprietary non-scaled hardening process that delivers exceptional load capacity, fatigue resistance, and long-term durability far beyond standard OEM-style bearings.

Key Features:

• pMaxBlack™ Tri-Metal Construction — Proprietary hardened overlay for superior load-bearing capacity
• Race Application Design — Built to handle extreme performance and competition use
• Housing Bore Oversize +0.005 in (+0.25mm) — Precision-sized for corrected or oversized housing bores
• Compatible with Subaru EJ20, EJ22, and EJ25 Engine Families — Covers a wide range of popular Subaru flat-four applications
• Non-Scaled Hardening Process — Delivers consistent surface hardness for improved wear resistance and longevity

King Engine Bearings MB5740XPG0.25 main bearings are the trusted choice for engine builders seeking a reliable, high-performance solution for Subaru EJ-series engine rebuilds and race builds.