ACL 4B8351H-.025 High-Performance Rod Bearing Set for Mazda B6, BP, and BP-T 1.6L/1.8L Engines

ACL Mazda 4 B6/BP/BP-T 1.6/1.8L .025mm Oversized High Performance Rod Bearing Set

The ACL 4B8351H-.025 high-performance rod bearing set is designed for Mazda B6, BP, and BP-T 1.6L and 1.8L engines requiring rod bearings with a 0.025 mm oversize specification. Engineered for performance-oriented and rebuilt applications, this bearing set supports dependable connecting-rod operation under demanding conditions.

ACL performance rod bearings are manufactured with materials and construction intended to provide consistent load support, reliable oil control, and resistance to the elevated stresses associated with high-performance engines. The 4B8351H-.025 set is a practical choice for professional engine builders, machine shops, and enthusiasts completing an engine rebuild with accurately machined crankshaft journals.

Before installation, confirm the crankshaft journal measurements, bearing clearances, and engine rebuild specifications. The oversize designation applies to the required bearing fit and should be matched to the crankshaft machining condition. This set is intended for automotive applications and fits selected Mazda Protege and Kia Rio models using compatible B6, BP, or BP-T engine configurations. Always verify engine code and application details before ordering.

Key Product Specifications & Technical Data

• Brand: ACL
• Part Number: 4B8351H-.025
• Component Type: High-performance connecting-rod bearing set
• Engine Family: Mazda B6, BP, and BP-T
• Engine Displacement: 1.6L and 1.8L
• Bearing Size: 0.025 mm oversize
• Application: Automotive engine rebuilding and performance use
• Package Quantity: One complete rod bearing set

What's Included

One ACL 4B8351H-.025 high-performance rod bearing set.

Fitment

Fits selected 1990–1996 Mazda Protege models and 2001–2002 Kia Rio models equipped with compatible B6, BP, or BP-T engine applications. Confirm the vehicle year, engine code, crankshaft journal specification, and required bearing clearance before installation.

Features:

• Oversize Rod Bearings: Designed for crankshafts machined to require a 0.025 mm oversize bearing specification.
• High-Performance Construction: Supports reliable rod-journal operation in performance and rebuilt engine applications.
• Engine Compatibility: Developed for Mazda B6, BP, and BP-T 1.6L and 1.8L engine families.
• Rebuild-Ready Set: Provides a complete connecting-rod bearing set for compatible automotive engine service.

Fitments:
1986 Mazda 323 Base
1986 Mazda 323 DX
1986 Mazda 323 LX
1987 Mazda 323 Base
1987 Mazda 323 DX
1987 Mazda 323 LX
1988 Mazda 323 Base
1988 Mazda 323 DX
1988 Mazda 323 GT
1988 Mazda 323 GTX
1988 Mazda 323 LX
1988 Mazda 323 SE
1989 Mazda 323 Base
1989 Mazda 323 GTX
1989 Mazda 323 LX
1989 Mazda 323 SE
1990 Mazda 323 Base
1990 Mazda 323 SE
1990 Mazda Miata Base
1990 Mazda Protege 4WD
1990 Mazda Protege LX
1990 Mazda Protege SE
1991 Mazda 323 Base
1991 Mazda 323 SE
1991 Mazda Miata Base
1991 Mazda Miata SE
1991 Mazda Protege 4WD
1991 Mazda Protege DX
1991 Mazda Protege LX
1991 Mercury Capri Base
1991 Mercury Capri XR2
1992 Mazda 323 Base
1992 Mazda 323 SE
1992 Mazda Miata Base
1992 Mazda MX-3 Base
1992 Mazda Protege DX
1992 Mazda Protege LX
1992 Mercury Capri Base
1992 Mercury Capri XR2
1993 Mazda 323 Base
1993 Mazda 323 SE
1993 Mazda Miata Base
1993 Mazda Miata LE
1993 Mazda MX-3 Base
1993 Mazda Protege DX
1993 Mazda Protege LX
1993 Mercury Capri Base
1993 Mercury Capri XR2
1994 Kia Sephia GS
1994 Kia Sephia LS
1994 Kia Sephia RS
1994 Mazda 323 Base
1994 Mazda Miata Base
1994 Mazda Miata M Edition
1994 Mazda MX-3 Base
1994 Mazda Protege Base
1994 Mazda Protege DX
1994 Mazda Protege LX
1994 Mercury Capri Base
1994 Mercury Capri XR2
1995 Kia Sephia GS
1995 Kia Sephia LS
1995 Kia Sephia RS
1995 Mazda Miata Base
1995 Mazda Miata M Edition
1995 Mazda MX-3 Base
1995 Mazda Protege ES
1996 Kia Sephia GS
1996 Kia Sephia LS
1996 Kia Sephia RS
1996 Mazda Miata Base
1996 Mazda Miata M Edition
1996 Mazda Protege ES
1997 Kia Sephia GS
1997 Kia Sephia LS
1997 Kia Sephia RS
1997 Mazda Miata Base
1997 Mazda Miata M Edition
1997 Mazda Miata STO
1997 Mazda Protege ES
1998 Mazda Protege ES
1999 Mazda Miata 10th Anniversary
1999 Mazda Miata Base
1999 Mazda Protege DX
1999 Mazda Protege ES
1999 Mazda Protege LX
2000 Mazda Miata Base
2000 Mazda Miata LS
2000 Mazda Miata SE
2000 Mazda Protege DX
2000 Mazda Protege ES
2000 Mazda Protege LX
2001 Kia Rio Base
2001 Mazda Miata Base
2001 Mazda Miata LS
2001 Mazda Miata SE
2001 Mazda Protege DX
2001 Mazda Protege LX
2002 Kia Rio Base
2002 Kia Rio Cinco
2002 Mazda Miata Base
2002 Mazda Miata LS
2002 Mazda Miata SE
2003 Kia Rio Base
2003 Kia Rio Cinco
2003 Mazda Miata Base
2003 Mazda Miata LS
2003 Mazda Miata SE
2003 Mazda Miata Shinsen
2004 Kia Rio Base
2004 Kia Rio Cinco
2004 Mazda Miata Base
2004 Mazda Miata LS
2004 Mazda Miata Mazdaspeed
2005 Kia Rio Base
2005 Kia Rio Cinco
2005 Mazda Miata Base
2005 Mazda Miata LS
2005 Mazda Miata Mazdaspeed

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