ACL Mazda B6/BP Extra Clearance Race Series Main Bearings — Fits 1986-2005 Mazda & Kia

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SKU: ACL5M8353HX-STD
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACL Extra Oil Clearance Main Bearings for Mazda B6/BP

High-RPM Mazda B6 and BP engines require specialized oil management to survive the rigors of racing. The ACL Race Series Main Bearings with Extra Oil Clearance are designed to provide that critical extra volume of oil, ensuring your crankshaft stays lubricated under the most intense conditions. These bearings are the preferred choice for tuners who demand maximum performance from their Mazda engines.

Key Advantages

  • Increased Oil Flow: Extra clearance design prevents oil starvation in high-RPM and high-load scenarios.
  • Race-Proven Durability: Built with high-strength materials to withstand extreme heat and pressure.
  • Precision Fitment: Engineered for standard journal sizes but with optimized clearance for high-performance builds.
  • Enhanced Longevity: Protects your engine internals against fatigue and premature wear during competitive driving.

These bearings are perfect for the Mazda Miata, Protege, and other vehicles equipped with the B6 or BP engine series. By allowing for a slightly thicker oil film, these bearings help dissipate heat more effectively, which is vital for engines running high compression or forced induction. If you are serious about your engine build, don't overlook the importance of bearing clearance. Find these performance bearings and more at GGCRACING.

Vehicle Fitment

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

Product Details

Product Description
Part Numbers
Sizing & Fit

About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACL Extra Oil Clearance Main Bearings for Mazda B6/BP

High-RPM Mazda B6 and BP engines require specialized oil management to survive the rigors of racing. The ACL Race Series Main Bearings with Extra Oil Clearance are designed to provide that critical extra volume of oil, ensuring your crankshaft stays lubricated under the most intense conditions. These bearings are the preferred choice for tuners who demand maximum performance from their Mazda engines.

Key Advantages

  • Increased Oil Flow: Extra clearance design prevents oil starvation in high-RPM and high-load scenarios.
  • Race-Proven Durability: Built with high-strength materials to withstand extreme heat and pressure.
  • Precision Fitment: Engineered for standard journal sizes but with optimized clearance for high-performance builds.
  • Enhanced Longevity: Protects your engine internals against fatigue and premature wear during competitive driving.

These bearings are perfect for the Mazda Miata, Protege, and other vehicles equipped with the B6 or BP engine series. By allowing for a slightly thicker oil film, these bearings help dissipate heat more effectively, which is vital for engines running high compression or forced induction. If you are serious about your engine build, don't overlook the importance of bearing clearance. Find these performance bearings and more at GGCRACING.

Vehicle Fitment

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

Product Details

Product Description

About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACL Extra Oil Clearance Main Bearings for Mazda B6/BP

High-RPM Mazda B6 and BP engines require specialized oil management to survive the rigors of racing. The ACL Race Series Main Bearings with Extra Oil Clearance are designed to provide that critical extra volume of oil, ensuring your crankshaft stays lubricated under the most intense conditions. These bearings are the preferred choice for tuners who demand maximum performance from their Mazda engines.

Key Advantages

  • Increased Oil Flow: Extra clearance design prevents oil starvation in high-RPM and high-load scenarios.
  • Race-Proven Durability: Built with high-strength materials to withstand extreme heat and pressure.
  • Precision Fitment: Engineered for standard journal sizes but with optimized clearance for high-performance builds.
  • Enhanced Longevity: Protects your engine internals against fatigue and premature wear during competitive driving.

These bearings are perfect for the Mazda Miata, Protege, and other vehicles equipped with the B6 or BP engine series. By allowing for a slightly thicker oil film, these bearings help dissipate heat more effectively, which is vital for engines running high compression or forced induction. If you are serious about your engine build, don't overlook the importance of bearing clearance. Find these performance bearings and more at GGCRACING.

Vehicle Fitment

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

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