ACL 6B1490H-.25 BMW M20/M50/M52/M54 .25mm Oversize Connecting Rod Bearing Set

ACL BMW M20/M50/M52/M54 - 1919CC 80.0mm Bore 66.0mm Stroke .25mm Oversized Conrod Bearing Set

The ACL 6B1490H-.25 connecting rod bearing set is designed for BMW engines using the M20, M50, M52, and M54 engine families. These .25mm oversize bearings are intended for crankshafts machined to accommodate an oversize bearing specification, helping restore the correct bearing clearance during an engine rebuild or performance refresh.

Manufactured for automotive engine applications, the ACL bearing set supports reliable connecting rod operation under demanding conditions. The bearing design is suited to the specified BMW engine platform and is intended for professional installation after confirming crankshaft journal measurements, bearing clearance, and the required oversize specification. Always compare the crankshaft and connecting rod specifications with the application requirements before installation.

Application data includes BMW models such as the 1998-2000 323i and 323is, the 2000 323Ci, and select 1986-1988 and 2001 325 applications. Fitment may vary by engine configuration, production date, and prior machining, so verify the vehicle and engine details before ordering. The set is supplied as a complete connecting rod bearing service component for the listed application.

Brief Description

.25mm oversize ACL connecting rod bearing set for select BMW M20, M50, M52, and M54 engines.

Key Product Specifications & Technical Data

• Brand: ACL
• Part Number: 6B1490H-.25
• Application: BMW M20, M50, M52, and M54 engines
• Component Type: Connecting rod bearing set
• Bearing Size: .25mm oversize
• Engine Displacement Reference: 1919cc
• Bore Reference: 80.0mm
• Stroke Reference: 66.0mm

What's Included

One ACL connecting rod bearing set for the specified BMW application.

Features:

• Application: Designed for select BMW M20, M50, M52, and M54 engine applications.
• Oversize Specification: .25mm oversize bearing size for crankshafts machined to the corresponding specification.
• Engine Rebuild Support: Helps restore proper connecting rod bearing clearance during qualified engine repairs and rebuilds.
• Professional Fitment: Verify crankshaft measurements, engine configuration, and vehicle application before installation.

Fitments:
1982 BMW 528e Base
1983 BMW 528e Base
1984 BMW 325e Base
1984 BMW 528e Base
1985 BMW 325e Base
1985 BMW 528e Base
1986 BMW 325 Base
1986 BMW 325e Base
1986 BMW 325es Base
1986 BMW 528e Base
1987 BMW 325 Base
1987 BMW 325e Base
1987 BMW 325es Base
1987 BMW 325i Base
1987 BMW 325is Base
1987 BMW 528e Base
1988 BMW 325 Base
1988 BMW 325i Base
1988 BMW 325is Base
1988 BMW 325iX Base
1988 BMW 528e Base
1989 BMW 325i Base
1989 BMW 325is Base
1989 BMW 325iX Base
1989 BMW 525i Base
1990 BMW 325i Base
1990 BMW 325is Base
1990 BMW 325iX Base
1990 BMW 525i Base
1991 BMW 325i Base
1991 BMW 325is Base
1991 BMW 325iX Base
1991 BMW 525i Base
1992 BMW 325i Base
1992 BMW 325is Base
1992 BMW 525i Base
1993 BMW 325i Base
1993 BMW 325is Base
1993 BMW 525i Base
1993 BMW 525iT Base
1994 BMW 325i Base
1994 BMW 325is Base
1994 BMW 525i Base
1995 BMW 325i Base
1995 BMW 325is Base
1995 BMW 525i Base
1995 BMW M3 Base
1995 BMW M3 Lightweight
1996 BMW 328i Base
1996 BMW 328is Base
1996 BMW M3 Base
1997 BMW 328i Base
1997 BMW 328is Base
1997 BMW 528i Base
1997 BMW M3 Base
1997 BMW Z3 Roadster
1998 BMW 323i Base
1998 BMW 323is Base
1998 BMW 328i Base
1998 BMW 328is Base
1998 BMW 528i Base
1998 BMW M3 Base
1998 BMW Z3 Roadster
1999 BMW 323i Base
1999 BMW 323is Base
1999 BMW 328i Base
1999 BMW 328is Base
1999 BMW 528i Base
1999 BMW M3 Base
1999 BMW Z3 Coupe
1999 BMW Z3 Roadster
2000 BMW 323Ci Base
2000 BMW 323i Base
2000 BMW 328Ci Base
2000 BMW 328i Base
2000 BMW 528i Base
2000 BMW Z3 Coupe
2000 BMW Z3 Roadster
2001 BMW 325Ci Base
2001 BMW 325i Base
2001 BMW 325xi Base
2001 BMW 330Ci Base
2001 BMW 330i Base
2001 BMW 330xi Base
2001 BMW 525i Base
2001 BMW 530i Base
2001 BMW X5 3.0i
2001 BMW Z3 Coupe
2001 BMW Z3 M Coupe
2001 BMW Z3 M Roadster
2001 BMW Z3 Roadster
2002 BMW 325Ci Base
2002 BMW 325i Base
2002 BMW 325xi Base
2002 BMW 330Ci Base
2002 BMW 330i Base
2002 BMW 330xi Base
2002 BMW 525i Base
2002 BMW 530i Base
2002 BMW X5 3.0i
2002 BMW Z3 Coupe
2002 BMW Z3 M Coupe
2002 BMW Z3 M Roadster
2002 BMW Z3 Roadster
2003 BMW 325Ci Base
2003 BMW 325i Base
2003 BMW 325xi Base
2003 BMW 330Ci Base
2003 BMW 330i Base
2003 BMW 330xi Base
2003 BMW 525i Base
2003 BMW 530i Base
2003 BMW X5 3.0i
2003 BMW Z4 2.5i
2003 BMW Z4 3.0i
2004 BMW 325Ci Base
2004 BMW 325i Base
2004 BMW 325xi Base
2004 BMW 330Ci Base
2004 BMW 330i Base
2004 BMW 330xi Base
2004 BMW 525i Base
2004 BMW 530i Base
2004 BMW X3 2.5i
2004 BMW X3 3.0i
2004 BMW X5 3.0i
2004 BMW Z4 2.5i
2004 BMW Z4 3.0i
2005 BMW 325Ci Base
2005 BMW 325i Base
2005 BMW 325xi Base
2005 BMW 330Ci Base
2005 BMW 330i Base
2005 BMW 330xi Base
2005 BMW 525i Base
2005 BMW 530i Base
2005 BMW X3 2.5i
2005 BMW X3 3.0i
2005 BMW X5 3.0i
2005 BMW Z4 2.5i
2005 BMW Z4 3.0i
2006 BMW 325Ci Base
2006 BMW 330Ci Base
2006 BMW X3 3.0i
2006 BMW X5 3.0i
2006 BMW Z4 M Coupe
2006 BMW Z4 M Roadster

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