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): 50.8 Overall Length (in): 2.0, 2 Inside Diameter (mm): 16.3 Inside Diameter (in): 0.6 Pilot Outside Diameter (mm): 59.8 Pilot Outside Diameter (in): 2.35