ACL RACE MAIN Bearing 5M1959H-.025 B18A B18B B18C B17A B16A B20 K20A K24 Honda Acura

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You are bidding on a NEW ACL RACE MAIN Bearing Kit which includes parts number 5M1959H-.025 (Main Bearing Set ONLY).

NOTE: This kit is oversize .025, these are NOT Standard size !!

This Kit fits all applications listed below:

1990-2001 Acura Integra RS, LS, GS, GSR, Type-R with engine codes B18A, B18B, B18C1, and B18C5 

1999-2000 Honda Civic Si with engine code B16A

1993-97 Honda Civic Del Sol with engine code  B16A

1994-2001 Honda CRV with engine codes B20B and B20Z

Acura and Honda with engine codes K20A2, K20A3, K20Z1 K24A, K24A1, K24A4, K24A8, K24Z

 NOTE: Some unscrupulous dealers are offering ACL bearings but will substitute other brands when they ship your order. Rest assured that when ordering with us, you will ONLY receive ACL products ! 

ACL Bearings have a unique combination of design, metallurgy and engineering that deliver what performance builders need. ACL Race Series Tri Metal Engine Bearings are available for many popular Acura and Honda engines and are designed to withstand higher RPM conditions. ACL bearings include  these features:

  • Tight consistent wall tolerances to help you maintain consistent clearances when building performance engines.
  • Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.
  • High strength overlay plate with reduced thickness for improved fatigue.
  • Hardened steel backs on all the bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
  • Increased crush for improved bearing retention
  • Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
  • Increased eccentricity to compensate for crankshaft and rod big end bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
  • 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the connecting rod bearings.
  • Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.