ACL 5M1959HC-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 race and performance applications
• Standard clearance for precise oil flow and lubrication
• Hardened steel backing improves bearing retention
• Enhanced eccentricity supports hydrodynamic oil film
• 3/4 grooved design optimizes oil flow to connecting rods
• Tight tolerances ensure consistent oil clearance
• Engineered for Honda/Acura B-series and K-series engines

Specifications

• Part Number: 5M1959HC-STD
• Bearing Type: Main Bearings
• Size: Standard 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: Standard for stock and mild performance builds

Included Components

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

Product Description

The ACL 5M1959HC-STD Race Series Main Bearings are designed for Honda and Acura engines, specifically B-series (B17A1, B18A1, B18B1, B18C1) and K-series (K20A2, K20A3, K24A) applications. These bearings are built for reliability in high-performance and stock rebuilds, offering a standard clearance ideal for both street and mild race applications. The trimetal construction, with a hardened steel backing and high-strength overlay, ensures durability and excellent bearing retention under high-RPM conditions. The 3/4 grooved design enhances oil flow, reducing wear and maintaining engine stability for extended performance.

These main bearings fit a variety of Honda and Acura models, including the 1990-2001 Acura Integra, 1997-2012 Honda CR-V, 2002-2006 Acura RSX, and others. They are compatible with both FWD and AWD drivetrains where applicable, but fitment must be verified for specific engines like the K20A2 or K24A due to potential crankshaft journal variations. Installation requires professional expertise to ensure proper alignment and clearance. These bearings are perfect for enthusiasts rebuilding a B-series or K-series engine for reliable street performance or light track use.