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ACL Bearings 4M1454A-40 Connecting Rod Bearing Set Undersize - 0.40mm

Manufacturer

Picture for manufacturer ACL Bearings

Part Number

4M1454A-40
9 reviews
Sale Price

$25.41

Estimated ship date Tuesday, December 01

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Product Details

The ACL Bearings 4M1454A-40 is a high-performance connecting rod bearing set engineered for BMW M54, M52, M50, and M20 six-cylinder engines. This 0.40mm undersize bearing set is specifically designed for crankshafts that have been machined or reground, providing the precise clearances needed for optimal performance and reliability.

Race-Proven Trimetal Construction:

  • Tri-metal design featuring hardened steel backing, copper-lead alloy, and high-strength overlay plate for superior durability
  • Reduced overlay thickness improves fatigue resistance under high-stress conditions
  • Hardened steel backs enhance bearing support and retention in the housing
  • Engineered to withstand high RPM, extreme temperatures, and heavy loads

Advanced Performance Features:

  • Elimination of flash plating on backing improves heat transfer and maximizes bearing-to-housing grip
  • Increased eccentricity compensates for bore distortion at high RPM and assists in hydrodynamic oil film formation
  • Increased crush design ensures superior bearing retention
  • Precision-finished to exacting tolerances for consistent clearances

ACL Race Series bearings deliver the reliability and performance demanded by enthusiasts, engine builders, and professional racers. The trimetal composition substantially reduces friction and operating temperatures while providing superior lubrication characteristics. These bearings are ideal for performance rebuilds, racing applications, and any engine operating under demanding conditions.

Very pleased with my purchase and Autoplicity. Got the best price on the internet and received it very quickly. Product arrived just as discribed. I highly recommend Autoplicity for your on-line shopping needs.

I was pleasantly surprised to received my order the following day.With ground shipping I was hoping to get it in 4 days to 6 days but this is amazing.You guys are great, thank you.

Offered a discount right away, I like that.

Awsome service and prices,Thanks alot

Great to deal with both online and over the phone. Buy with confidence.

I ordered new leaf springs for my Jeep Cherokee. Its already headed out to me. Ordering was nice and easy. I'll post more once i get it.

Great prices and super fast shipping. Found my new online parts store!

I was a bit concerned buying from a online retailer I had not done business with before, but Autoplicity is now on my list of preferred vendors. I was sure there would be some problem, as the part I ordered was $73 cheaper than anywhere else online (too good to be true). Well, the part arrived super fast, and was exactly as I ordered. I did not hear from them immediately after ordering, but received confirmation and tracking info when the item shipped, which was two days after ordering. All in all, a great, money saving experience.<br><br>Update:<br>While I am still pleased with the service I received, I find it odd that Autoplicity emailed me and offered me a refund of $5 for writing a review. It has been a couple of weeks since I posted my review, and I have yet to see any credits on my credit card.

I found great prices and they shipped immediately. Best deal online.

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