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: Bushing With Outer Sleeve Overall Length (mm): 63.2 Overall Length (in): 2.49 Inside Diameter (mm): 19 Inside Diameter (in): 0.75 Pilot Outside Diameter (mm): 50.88 Pilot Outside Diameter (in): 2