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ACL 4B8170H-.25 Ford/Mazda 4 2.3L DOHC Duratec Race Series Rod Bearing

Brand: ACL Bearings
Part Number: 4B8170H-.25
Description: Ford/Mazda 4 2.3L DOHC Duratec Race Series Rod Bearing
Condition: Brand New
Shipping: Free Shipping!
Was: $67.11
Sale: $55.92
Save: 17%
Save: $11.19
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Are you looking for the best engine bearings on the market. Step up to ACL Bearings. The unique combination of flawless design and superior engineering come together to deliver what drivers expect from high performance engine bearings. Designed to withstand higher RPM conditions, these ACL Race Series Engine Bearings are available for most popular 4, 6 & 8 cylinder vehicles. Check out the following ACL bearing features:

  • High strength overlay plate with reduced thickness for improved fatigue properties
  • Hardened steel backs on all rod bearings
  • 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
  • Improved heat transfer through the bearings
  • Maximize the grip between the bearings and the housing
  • Increased eccentricity to compensate for bore distortion at high RPM
  • 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings.
  • Tight consistent wall tolerances to help you maintain consistent clearances.
  • Enlarged ID chamfers on bearing edges
  • Accommodates large fillet radius on performance crankshafts.

Buy your ACL 4B8170H-.25 at for the lowest online price.


  • 4B8170H-.25
  • 4B8170H-.25
  • ACL
  • New

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  • Free Shipping!
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