41MM SR20/CA18/RB20 STRENGTHENED CLUTCH PIVOT BALL Engine Model_RB25 Vehicle Compatibility: - Nissan 180sx

Vehicle Compatibility: - Nissan 180sx - Nissan S13 Silvia - Nissan S14 200SX - Nissan S15 200SX - Nissan Skyline R32 GTS-T - Nissan Skyline R32 GTR - Nissan Skyline R33 GTS-T - Nissan Skyline R33 GTR - Nissan Skyline R34 GTT - Nissan Skyline R34 GTR - Nissan C33 - Nissan C34 - Nissan C35 - Nissan A31 Cefiro - Nissan Z32 300zx

12-point head that accepts a deep socket to eliminate the fear of stripping the head

Upper Mount - 20mm Bush

- Nissan Skyline R32 GTS4

2 Bosch type doughnut OEM knock sensors

41MM SR20/CA18/RB20 STRENGTHENED CLUTCH PIVOT BALL Engine Model_RB25 Vehicle Compatibility: - Nissan 180sxThe GKTECH 41mm SR20 CA18 RB20 clutch pivot ball is a direct replacement of the standard item however it is considerably stronger being made from 40Cr steel. If upgrading to a heavy duty clutch it is a good idea to swap out the clutch fork pivot. Alternative for Nismo part 30537 RS540 Fits all SR20DE DET, CA18DE DET and RB20DE DET application