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ACL Bearings 4B1121-030 Connecting Rod Bearing Set Undersize - 030

Manufacturer

Part Number

4B1121-030
Sale Price

$22.29

Estimated ship date Friday, December 04

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Product Details

The ACL Bearings 4B1121-030 is a high-performance connecting rod bearing set designed for precision engine builds and performance applications. This .030" undersize bearing set is engineered for crankshafts that have been ground .030" undersize to restore proper clearances and ensure optimal engine reliability.

Key Features:

  • Tri-metal copper-lead construction for superior strength and durability
  • Hardened steel backing provides enhanced support and bearing retention
  • Precision-manufactured to tight wall tolerances for consistent clearances
  • Increased crush design eliminates flash plating for improved heat transfer
  • Advanced metallurgy suitable for both street performance and racing applications
  • .030" undersize dimension for reground crankshaft journals

ACL Bearings has been manufacturing precision engine bearings in Australia for over 70 years, earning a global reputation for quality and innovation. These connecting rod bearings feature improved material properties, optimized oil distribution, and enhanced heat dissipation characteristics that make them ideal for engine rebuilds, performance upgrades, and high-RPM applications.

Products specifications

Size

030

Shipping was fast and without damage and the price was great.

Easy, quick transaction with the lowest price found.

Great customer service. My product came quickly and just as described. Can't beat the prices anywhere on the internet, I looked for 2 months before buying. Thanks!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

I placed an order for Race Ramps and not only were they the best price I could find, but the shipping time was excellent as well!

Autoplicity gave me no hassles ever, the price dropped on the product I ordered and I just contacted BuySafe and received the difference quickly. Order was shipped same day. I will buy them over and over again! Thank you Autoplicity.

Excellent prices and fast shipping! Exhaust showed up as described and good to go! Very happy

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