ACL 5M1959HXC-STD Race Main Bearings for 1990-2001 Acura Integra/1997-2012 Honda

Vehicle Fitment

• 1990-2001 Acura Integra (GS, LS, GS-R, Type R, 1.8L I4)
• 1997-2009 Honda CR-V (LX, EX, SE, 2.0L I4, 2.4L I4)
• 2002-2006 Honda CR-V (LX, EX, SE, 2.4L I4)
• 2007-2012 Honda CR-V (LX, EX, EX-L, 2.4L I4)
• 2002-2005 Honda Civic Si (EP3, 2.0L I4)
• 2003-2007 Honda Accord (DX, LX, EX, 2.4L I4)
• 2003-2011 Honda Element (DX, EX, SC, 2.4L I4)
• 2002-2006 Acura RSX (Base, Type-S, 2.0L I4)
• 2004-2008 Acura TSX (Base, 2.4L I4)
• 2007-2012 Acura RDX (Base, 2.3L I4 Turbo)

Fitment Notes

• Does not fit Acura Integra Type R with B18C5 JDM spec engine
• Fitment confirmed through 2024. 2025 unconfirmed for Acura RDX and Honda CR-V
• Compatible with FWD and AWD drivetrains where applicable
• Verify crankshaft journal size for K20A2 and K24A engines

Features

• High-strength trimetal construction for enhanced durability
• Optimized for high-RPM performance in race applications
• Reduced overlay thickness improves fatigue resistance
• Hardened steel backing enhances bearing retention
• Increased eccentricity aids hydrodynamic oil film formation
• 3/4 grooved design maximizes oil flow to connecting rods
• Tight wall tolerances ensure consistent oil clearance
• Designed for Honda/Acura B-series and K-series engines

Specifications

• Part Number: 5M1959HXC-STD
• Bearing Type: Main Bearings
• Size: Standard with 0.001" extra oil clearance
• Material: Trimetal with hardened steel backing
• Position: Crankshaft main journals
• Quantity: 5 upper and 5 lower bearings
• Application: Honda/Acura 1.8L, 2.0L, 2.3L, 2.4L I4 engines
• Clearance: 0.001" extra for high-RPM applications

Included Components

• 5x Upper main bearing shells
• 5x Lower main bearing shells

Product Description

The ACL 5M1959HXC-STD Race Series Main Bearings are engineered for high-performance Honda and Acura engines, specifically designed for B-series (B17A1, B18A1, B18B1, B18C1) and K-series (K20A2, K20A3, K24A) applications. These bearings deliver superior durability and performance under high-RPM conditions, making them ideal for race builds and spirited driving. The trimetal construction, featuring a high-strength overlay and hardened steel backing, ensures exceptional fatigue resistance and bearing retention, even in demanding environments. With 0.001" extra oil clearance, these bearings optimize oil flow and maintain stability in high-output engines, reducing wear and extending engine life.

These main bearings are a direct fit for a wide range of Honda and Acura models, including the 1990-2001 Acura Integra, 1997-2012 Honda CR-V, and 2002-2006 Acura RSX, among others. Installation is straightforward for professional mechanics familiar with Honda/Acura engine rebuilds, but verifying crankshaft journal specifications is recommended to ensure proper fitment. Whether you're rebuilding a K20 for track use or refreshing a B18 for street performance, the ACL Race Series bearings provide the reliability and precision needed for high-performance applications. Always confirm fitment for your specific engine and drivetrain before installation.