This kit includes the parts to repair an air control Mount Type: Two-Piece - Non-Symmetric Head Outside Diameter (mm): 90 Head Outside Diameter (in): 3.54 Head Thickness (mm): 28.5 Head Thickness (in): 1.12 Pilot Outside Diameter (mm): 50 Pilot Outside Diameter (in): 1.97 Inside Diameter (mm): 31.2 Inside Diameter (in): 1.23 Mount Height (mm): 60 Mount Height (in): 2.36 Pad Height (mm): 25 Pad Height (in): 0.98 Bonded Sleeve: No Standard Bolt Size: M16