My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

ACL Bearings 4B1146H-.25 Race Series Connecting Rod Bearings

Part of: ACL Bearings Race Series Connecting Rod

Other options in this family: ACL Bearings 4B1972HX-STD ACL Bearings 4B2960H-STD ACL Bearings 4B1946H-STD ACL Bearings 6B2960H-STD ACL Bearings 4B1185HX-STD

Manufacturer

Picture for manufacturer ACL Bearings

Part Number

4B1146H-.25
12 reviews
Sale Price

$43.77

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

ACL Race Series connecting rod bearings are engineered for high-performance and racing applications where durability and reliability under extreme conditions are paramount. These bearings feature advanced metallurgy and precision manufacturing to handle the increased loads and temperatures found in modified and race engines.

Key Features:

  • Race Series construction designed for high-performance and competition use
  • 0.25mm undersize for crankshaft journal machining and rebuilds
  • Premium tri-metal bearing material for superior strength and wear resistance
  • Precision tolerances ensure optimal oil clearance and bearing life
  • Enhanced fatigue resistance for high-RPM operation
  • Designed to withstand extreme cylinder pressures and bearing loads

ACL's Race Series bearings undergo rigorous quality control and are manufactured to exacting specifications, making them a trusted choice for engine builders and racers worldwide. The undersize designation allows for proper fitment on machined crankshafts, restoring correct bearing clearances during engine rebuilds.

Products specifications

Max Overall Length

0.925"(23.50mm)

Max Std Shaft Size

1.7717"(45.000mm)

Max Std Tunnel Size

1.8906"(48.020mm)

Max Wall at Crown

0.0588"(1.494mm)

Min Std Shaft Size

1.7713"(44.991mm)

Min Std Tunnel Size

1.8898"(48.000mm)

Oil Clearance

Standard

Size

.25

thank you for the order

Great convenience with the pay by Amazon option. Easy transaction :)

Very speedy and in excellent shape. Easy to install and only took minutes. Autoplicity in my book is a great place to shop. <br><br>-Jason Chance<br> Cape Fair, MO

I placed an order with autoplicity on Saturday order number 10468 I got it today and installed my new banks ram air box and it is awesome. Thanks autoplicity my box from Banks looks like it just came off the shelf even after ups delivered it.

thanks

Great so far. great prices

i found the best deal on the web on an ARB bumper here and shipping was also the lowest ive seen, so long 4wheelparts.com i found a new place to shop.....

Great

Good product, fast shipping, ease of shopping.

Had the cheapest parts I could find, shipped within 2 days. Very reasonable shipping rates.

Good prices

Your prices for Metal Rescue were the best I could find and your shipping was fast, although I screwed up and ordered a quart when I though I ordered a gallon

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy