What is the advantage of a tri-metal overlay on these bearings?

The tri-metal overlay provides improved fatigue strength and durability. This construction helps the bearings withstand higher loads and stresses, making them suitable for performance engines that operate under more demanding conditions than stock.

Do these bearings come with installation hardware?

This product includes the main bearings only. Installation hardware, such as main cap bolts or seals, is typically sold separately. Always refer to the manufacturer's installation guide for a complete list of required components.

What if my crankshaft journals are not standard size?

These are standard size bearings. If your crankshaft has been machined undersize due to wear or repair, you will need to select the corresponding undersize bearing set from ACL to ensure proper oil clearance and fitment.

Specifications

Brand: ACL
Part #: 5M1959HX-STD
UPC: 9315726277652

ACL Acura B17A1/B18A1/B18B1 / B18C1/B18C5 VTEC / Honda K20A3/K20A2/K24A Standard Size High Performa

Name: ACL Acura B17A1/B18A1/B18B1 / B18C1/B18C5 VTEC / Honda K20A3/K20A2/K24A Standard Size High Performa
Brand: ACL
SKU: acl-acl-acura-b17a1-b18a1-b18b1-b18c1-b18c5-vtec-honda-k20a3-k20a2-k24a-standard-t14-13001
Price: 73.95 USD
Availability: InStock

$73.95

In Stock

ACL High Performance Main Bearings for Honda/Acura B17A1, B18, K20A, K24A engines. Part# 5M1959HX-STD. Direct fit.

Key Features

Fits Acura Integra (1990-2001), RSX (2002-2006), TSX (2004-2008), Honda Accord (2003-2007), CR-V (1997-2009), Civic (2002-2005), and Element (2003-2011).
Features a tri-metal overlay for improved fatigue strength and durability.
Standard size for precise fitment on factory-spec crankshaft journals.
Designed to handle higher loads and RPMs common in performance applications.
Helps maintain proper oil clearance for crankshaft protection.

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About this part

Product Details

When you're rebuilding or refreshing a performance Honda or Acura engine, the main bearings are critical. These ACL High Performance Main Bearings are built with a tri-metal overlay that's tough enough for demanding use. They're designed to handle the increased loads and higher RPMs that performance builds often see, while still providing a reliable oil film to protect your crankshaft.

ACL uses a specialized overlay material that offers improved fatigue strength compared to standard bearings. This means they can withstand more stress over time, which is important if you're pushing your engine harder than stock. The standard size ensures a precise fit on your crankshaft journals, assuming they are within factory specifications. If your crankshaft has been machined, you'll need to select the appropriate undersize bearing.

This set is designed for a range of popular Honda and Acura engines, including many B-series and K-series variants. Make sure to check the fitment details to confirm compatibility with your specific engine code. Proper installation, including cleaning and correct oil clearances, is key to getting the most out of these well-built bearings.