Gaskets are an important component of air compressors, which provide air supply to different parts of the engine where needed Mount Type: Mushroom Mount Overall Length (mm): 35.8 Overall Length (in): 1.41 Sleeve Length (mm): 25.4 Sleeve Length (in): 1 Head Outside Diameter (mm): 44.4 Head Outside Diameter (in): 1.75 Pilot Outside Diameter (mm): 29.3 Pilot Outside Diameter (in): 1.15 Inside Diameter (mm): 13.2 Inside Diameter (in): 0.52 Standard Bolt Size: M12