Replace your noisy and worn AC pulley bearing with this Made in Japan NSK bearing. This NSK bearing is specifically designed for use in AC pump pulleys.
From NSK "The NSK magnetic clutch bearing have a unique design that provides high performance sealing and high moment rigidity to extend bearing life. The thin cross-section double row angular contact ball bearings are produced for magnetic clutch applications."
We have confirmed fitment on R32, R33, R34 GTRs and 260RS.