Parts Now Pay Later with
Log In Cart
Log In

Create An Account

Log In Cart
Your Cart Is Empty
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.
Shipping to Alaska and Hawaii is additional and not included.
We do not ship international at this time.

Shipping Policy

ACL K-Series +.025mm Rod Bearings
Part Number: 4B1972H-.025

ACL K-Series +.025mm Rod Bearings-A1
Images may be for reference only

ACL K-Series +.025mm Rod Bearings
Part Number: 4B1972H-.025

Be the first to review!
$45.37

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.


Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 91 reward points. Learn More


Quantity 1 equals 8 rod bearings

1 In Stock

Product Details

Part Number: 4B1972H-.025
Brand: ACL
Bearing Thickness: +.025mm (.00098in)
UPC: 9315726391464

K Series Parts has used ACL rod bearings in almost every k-series motor we have built. We highly recommend them for any K20 and K24 motor build!

An ACL standard bearing is equivalent to a Honda green bearing but has an extra thickness of .025.

These bearings work with the following engine blocks: K20A2,K24A

ACL Description

ACL Race Series Connecting Rod Bearings: The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings.

Designed to withstand higher RPM conditions, ACL Race Series Connecting Rod Bearings are available for many of the popular 4, 6 & 8 cylinder applications.

Features

  • High strength overlay plate* with reduced thickness for improved fatigue properties
  • Hardened steel backs* on all rod bearings to 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 to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
  • Increased eccentricity* to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
  • Tight consistent wall tolerances* to help you maintain consistent clearances.
  • Enlarged ID chamfers* on bearing edges where required to accommodate large fillet radius on performance crankshafts.

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

Vehicle Fitment

Acura RSX
2002 Acura RSX Type-S 2003 Acura RSX Type-S 2004 Acura RSX Type-S 2005 Acura RSX Type-S 2006 Acura RSX Type-S
Acura TSX
2004 Acura TSX All 2005 Acura TSX All 2006 Acura TSX All 2007 Acura TSX All 2008 Acura TSX All
Honda Civic
2006 Honda Civic Si Coupe 2007 Honda Civic Si Coupe 2008 Honda Civic Si Coupe 2009 Honda Civic Si Coupe 2010 Honda Civic Si Coupe 2011 Honda Civic Si Coupe
2007 Honda Civic Si Sedan 2008 Honda Civic Si Sedan 2009 Honda Civic Si Sedan 2010 Honda Civic Si Sedan 2011 Honda Civic Si Sedan

Reviews ★★★★★ ★★★★★

No Reviews Yet!

Write a Review

Recommended Together

Total: $0.00

Click circle to add or remove product