ACL Rod bearings BMW N54 / N55 / S55
ACL Rod Bearings is used when you want better quality in engine tuning. ACL engine bearings have a higher bearing capacity than standard bearings, making these an obvious upgrade.
The points that make ACL bearings better than the standard include: material, dynamic thickness, heat conduction, oil guides and oil distribution.
The last letter of the part number indicates the clearance of the ACL Race series engine bearings:
H = 0.0125mm (.0005”)
HX = 0.025mm (0.001”) - With extra clearance
HD = 0.0125mm (.0005”) -With location dowel holes
HXD = 0.025mm (0.001”) - With extra clearance and location dowel holes
ACL Engine bearings
ACL is the brand directly associated with high performance engine bearings. If you use "ACL bearings" -Then everyone know it is built with quality parts.
More engine bearings available here:
Audi - BMW - GM - Ford - Honda - Lancia - Mazda - Mercedes - Mitsubishi - Nissan - Opel - Peugeot - Renault - Saab - Subaru - Suzuki - Toyota - VAG - Volvo - Volkswagen