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ACL Bearings 4B8170AO/S2-.50 Connecting Rod Bearing Set Undersize - 50mm

Manufacturer

Picture for manufacturer ACL Bearings

Part Number

4B8170AO/S2-.50
9 reviews
Sale Price

$17.06

Estimated ship date Saturday, December 05

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Product Details

The ACL Bearings 4B8170AO/S2-.50 is a precision-engineered connecting rod bearing set designed for high-performance and racing engine applications. This bearing set features ACL's Race Series construction with advanced tri-metal composition for superior strength and durability under extreme loads and temperatures.

Key Features:

  • Undersize specification: .50mm (.020") for use with reground crankshaft journals
  • Tri-metal construction with hardened steel backing, copper-lead intermediate layer, and polymer overlay
  • Extra oil clearance (AO) for high-performance applications requiring increased oil flow
  • S2 coating provides enhanced wear resistance and improved break-in characteristics
  • Precision manufactured to strict tolerances for optimal fitment and performance
  • Designed for engines operating at high RPM with elevated cylinder pressures

ACL Race Series bearings are trusted by professional engine builders and racers worldwide for their consistent quality and ability to withstand the demanding conditions of competition use. The undersize dimension allows for proper clearance restoration when crankshafts have been machined to remove wear or damage. Always verify measurements and clearances during installation to ensure proper bearing crush and oil clearance.

Products specifications

Size

.50

Had the product I needed at a price that couldn't be beat. The shipping was a little high, but not completely out of line, either, and it was still better than other companies who have even MORE ridiculous shipping rates. Will buy from them in the future if they have what I need.

I will continue to buy from you if all is good

EASY TO NAVIGATE THE PAGE, FAST SHIPPING, OVERALL WONDERFULL TO DEAL WITH!!!! WILL SHOP THERE AGAIN!!!! THANK YOU!!!

Great price and fast shipping!

Great prices and easy transaction

Best price I could find on line, shipped really fast. With how low the price is I was worried but everything came fast and it was the correct parts. This place really keeps the cost of racing down.

Everything went seamlessly. I placed my order on a Thursday and it got here Tuesday morning. No problems, and it was the best price I could find.

Had to upgrade to a Snell 2010 helmet this year, bought the identical helmet for $200 less than I paid 8 years ago! Fast shipping, I will be checking Autoplicity first in the future!

GOOD PRICE! way to go keep up the good work!!!!

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