ACL 5M1957H-.25 0.25mm Oversized High-Performance Main Bearing Set for Acura and Honda Engines

ACL Acura D16A1 / 97-01 Honda H22A4 / 98+ F23A 0.25mm Oversized High Performance Main Bearing Set

The ACL 5M1957H-.25 high-performance main bearing set is designed for select Acura and Honda engine applications, including the Acura D16A1, 1997–2001 Honda H22A4, and 1998 and newer Honda F23A engines. Manufactured for precision engine rebuilding, these 0.25mm oversized main bearings are intended for crankshafts that have been machined to the matching undersize specification.

ACL performance bearings are engineered to support demanding street, competition, and rebuilt-engine applications. The bearing set is designed to promote consistent crankshaft support, dependable oil control, and reliable load distribution across the main bearing surfaces. Precision manufacturing helps provide accurate fitment when installed with properly measured and prepared engine components.

Before installation, verify the engine code, crankshaft journal size, bearing clearances, and required oversize specification. The 0.25mm oversized design must be matched to a crankshaft machined for the corresponding undersize bearing. This set is associated with select 1996–1999 Honda Civic fitments and additional Acura and Honda applications listed above; always confirm application details against the vehicle and engine being serviced.

What's Included: One ACL 5M1957H-.25 high-performance main bearing set. Professional installation and clearance verification are recommended.

Features:

• High-Performance Construction: Designed for demanding street, competition, and rebuilt-engine applications.
• 0.25mm Oversized Fit: Intended for crankshafts machined to the corresponding 0.25mm undersize specification.
• Precision Engineered: Manufactured to support consistent fitment, oil control, and load distribution.
• Broad Acura and Honda Application: Fits select Acura D16A1, 1997–2001 Honda H22A4, and 1998 and newer Honda F23A engines.

Fitments:
1986 Acura Integra LS
1986 Acura Integra RS
1987 Acura Integra LS
1987 Acura Integra LS Special Edition
1987 Acura Integra RS
1988 Acura Integra LS
1988 Acura Integra LS Special Edition
1988 Acura Integra RS
1988 Honda Civic RT 4WD
1988 Honda CRX Si
1988 Honda Prelude 2.0 S
1988 Honda Prelude 2.0 Si
1988 Honda Prelude 2.0 Si 4WS
1989 Acura Integra LS
1989 Acura Integra RS
1989 Honda Civic RT 4WD
1989 Honda Civic Si
1989 Honda CRX Si
1989 Honda Prelude 2.0 S
1989 Honda Prelude 2.0 Si
1989 Honda Prelude 2.0 Si 4WS
1990 Honda Civic EX
1990 Honda Civic RT 4WD
1990 Honda Civic Si
1990 Honda CRX Si
1990 Honda Prelude 2.0 S
1990 Honda Prelude 2.0 Si
1990 Honda Prelude Si
1990 Honda Prelude Si 4WS
1990 Honda Prelude Si ALB
1991 Honda Civic EX
1991 Honda Civic RT 4WD
1991 Honda Civic Si
1991 Honda CRX Si
1991 Honda Prelude 2.0 Si
1991 Honda Prelude Si
1991 Honda Prelude Si 4WS
1991 Honda Prelude Si ALB
1992 Honda Civic EX
1992 Honda Civic Si
1993 Honda Civic EX
1993 Honda Civic Si
1993 Honda Civic del Sol Si
1994 Honda Civic EX
1994 Honda Civic Si
1994 Honda Civic del Sol Si
1994 Honda Civic del Sol VTEC
1995 Honda Civic EX
1995 Honda Civic Si
1995 Honda Civic del Sol Si
1995 Honda Civic del Sol VTEC
1996 Honda Civic CX
1996 Honda Civic DX
1996 Honda Civic EX
1996 Honda Civic HX
1996 Honda Civic LX
1996 Honda Civic del Sol S
1996 Honda Civic del Sol Si
1997 Honda Civic CX
1997 Honda Civic DX
1997 Honda Civic EX
1997 Honda Civic HX
1997 Honda Civic LX
1997 Honda Civic del Sol S
1997 Honda Civic del Sol Si
1997 Honda Prelude Base
1997 Honda Prelude Type SH
1998 Acura CL Base
1998 Acura CL Premium
1998 Honda Accord DX
1998 Honda Accord EX
1998 Honda Accord LX
1998 Honda Civic CX
1998 Honda Civic DX
1998 Honda Civic EX
1998 Honda Civic HX
1998 Honda Civic LX
1998 Honda Odyssey EX
1998 Honda Odyssey LX
1998 Honda Prelude Base
1998 Honda Prelude Type SH
1999 Acura CL Premium
1999 Honda Accord DX
1999 Honda Accord EX
1999 Honda Accord LX
1999 Honda Civic CX
1999 Honda Civic DX
1999 Honda Civic EX
1999 Honda Civic HX
1999 Honda Civic LX
1999 Honda Civic Value Package
1999 Honda Prelude Base
1999 Honda Prelude Type SH
1999 Isuzu Oasis LS
1999 Isuzu Oasis S
2000 Honda Accord DX
2000 Honda Accord EX
2000 Honda Accord LX
2000 Honda Accord SE
2000 Honda Civic CX
2000 Honda Civic DX
2000 Honda Civic EX
2000 Honda Civic HX
2000 Honda Civic LX
2000 Honda Prelude Base
2000 Honda Prelude Type SH
2001 Honda Accord DX
2001 Honda Accord EX
2001 Honda Accord LX
2001 Honda Accord Value Package
2001 Honda Civic DX
2001 Honda Civic EX
2001 Honda Civic GX
2001 Honda Civic HX
2001 Honda Civic LX
2001 Honda Prelude Base
2001 Honda Prelude Type SH
2002 Honda Accord DX
2002 Honda Accord EX
2002 Honda Accord LX
2002 Honda Accord SE
2002 Honda Accord Value Package
2005 Honda Civic DX
2005 Honda Civic EX
2005 Honda Civic EX Special Edition
2005 Honda Civic GX
2005 Honda Civic HX
2005 Honda Civic LX
2005 Honda Civic LX Special Edition
2005 Honda Civic Value Package

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1