This ACL High Performance Main Bearing Set is sized for a stock, unmachined crankshaft journal (Standard) and finished with ACL's CT-1 coating. It fits VW/Audi 1781cc and 1984cc 4-cylinder engines used across the Audi 4000, 80, 90, A4, A4 Quattro, TT, and TT Quattro, and the Volkswagen Beetle, Cabrio, Cabriolet, Corrado, Fox, Golf, Jetta, Passat, Quantum, Rabbit, Rabbit Convertible, and Scirocco, spanning roughly 1983-2009.
Specifications:
- Type: Main Bearing Set
- Series: High Performance, CT-1 Coated
- Size: Standard
- Engine Fitment: VW/Audi 1781cc/1984cc 4-Cylinder
- Part Number: 5M1644HC-STD
FAQ
What is CT-1 coating?
CT-1 is ACL's coated bearing finish, applied to this Standard-size main bearing set for the VW/Audi 1781cc/1984cc engine family.
What vehicles use this 1781cc/1984cc engine?
A wide range of Audi and Volkswagen models, including the Audi 4000, 80, 90, A4, TT, and the VW Beetle, Cabrio, Cabriolet, Corrado, Fox, Golf, Jetta, Passat, Quantum, Rabbit, and Scirocco, from roughly 1983-2009.
Is this a main or rod bearing set?
Main bearing set - it supports the crankshaft in the engine block.

