BMW S54 Connecting Rod Bearing Kit - 1124783440KT1

Product Information

An Engine Connecting Rod Bearing is a precision bearing located between the connecting rod and the crankshaft journal in an internal combustion engine. Its role is to allow smooth rotation of the crankshaft while reducing friction and wear. These bearings are typically made from layers of soft metals (like copper, lead, or aluminum alloys) that can withstand high loads while still being sacrificial (wearing out before the crankshaft does).

• Knocking or tapping noise ("rod knock") – deep metallic knocking from the engine, especially under load or acceleration.
• Low oil pressure – worn bearings create excess clearance, reducing oil pressure.
• Metal shavings in oil – bearing material may flake off and appear in the oil or on the drain plug.

About ACL

ACL has a proud & rich history in Motorsport - it is in our DNA. There is no better proving ground than the racetrack whatever it’s configuration. In the heat of competition-proven technology always comes through.

The ACL RACE Series performance engine bearing range of today has a strong pedigree in motorsport & traces its roots back to the 1960’s with the manufacture of engine bearings for use in the world conquering Brabham Formula 1.

Further experience in the Australian Supercars Championship & numerous other race codes has culminated in the current ACL Race Series technology platform. The unique combination of design, metallurgy, engineering & precision quality control come together to deliver what engine builders expect from performance engine bearings. Whatever your application we have you covered - if you are looking for the best - demand the best.