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Regular Price: $211.25 - Instant discount: $81.25 = $130.00
Product Fitment:
2015-2021 Subaru WRX
The ACL 5M8312HX-STD Race Series Main Bearing Set is engineered for high-performance Subaru engines that demand superior strength, oil control, and long-term reliability. Designed for standard-size crankshafts, this HX-series bearing set is ideal for performance builds, turbocharged applications, and engines that see sustained high RPM and elevated loads.
ACL’s HX Race Series bearings feature increased wall thickness and optimized clearances compared to OEM-style bearings, making them well-suited for higher horsepower and aggressive driving conditions. Manufactured with a hardened steel backing and advanced bearing overlay, these bearings provide excellent fatigue resistance, improved oil film stability, and consistent performance under extreme stress.
Whether you’re building a street performance engine or a track-focused setup, the ACL 5M8312HX-STD main bearings deliver the durability and precision trusted by professional engine builders worldwide.
Key Features:
Race Series HX Design: Increased load capacity for high-performance and turbocharged engines
Standard Size Fitment: Designed for standard crankshaft journals
Enhanced Durability: Hardened steel backing with advanced bearing materials
Improved Oil Control: Optimized clearances for high-RPM and high-boost applications
Engine Builder Trusted: Widely used in Subaru performance and motorsports builds
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