ACL Bearings 4B1912HXD-STD Race Series Connecting Rod Bearing Set with Dowel Holes

ACL Race Series connecting rod bearings deliver cost-effective and dependable performance for engine builders, whether you're building a high-performance race engine or rebuilding a daily driver. This 4B1912HXD-STD bearing set is designed for Honda F20C, F22C, and H22A engines found in the S2000 and Prelude.

HXD Designation Explained:

• HX designation provides an extra .001" (0.025mm) oil clearance compared to standard H bearings, with bearing walls that are .0005" (0.013mm) thinner
• D indicates dowel holes in the lower shell to accommodate dowel hole locations in the connecting rod cap
• Extra oil clearance is a popular preference for engines being built for performance use

Race Series Performance Features:

• Tri-metal construction with three layers of hardened steel, copper, and nickel designed to withstand high RPM, temperatures, and loads
• High strength overlay plate with reduced thickness for improved fatigue properties
• Hardened steel backs on all rod bearings improve support of the bearing lining and assist with bearing retention in the housing
• Increased eccentricity compensates for bore distortion at high RPM and assists in the formation of hydrodynamic oil films
• Tight consistent wall tolerances help maintain consistent clearances
• Enlarged ID chamfers on bearing edges accommodate large fillet radius on performance crankshafts

ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world, with the unique combination of design, metallurgy, and engineering providing the endurance and capability to perform where others cannot. Standard size bearing set includes all connecting rod bearings required for a complete engine build.