Cat fuel injector nozzles utilize specialized product metallurgy, proprietary manufacturing processes and design, to deliver injectors capable of meeting today's performance and injection pressures for emissions requirements. Mount Type: Mushroom Mount Overall Length (mm): 36.6 Overall Length (in): 1.44 Sleeve Length (mm): 27.6 Sleeve Length (in): 1.09 Head Outside Diameter (mm): 32.1 Head Outside Diameter (in): 1.26 Pilot Outside Diameter (mm): 24.5 Pilot Outside Diameter (in): 0.96 Inside Diameter (mm): 10.3 Inside Diameter (in): 0.41 Standard Bolt Size: M10