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: Two-Piece - Symmetric Head Outside Diameter (mm): 152.3 Head Outside Diameter (in): 6 Head Thickness (mm): 35.6 Head Thickness (in): 1.4 Pilot Outside Diameter (mm): 87 Pilot Outside Diameter (in): 3.43 Inside Diameter (mm): 27 Inside Diameter (in): 1.06 Mount Height (mm): 85.8 Mount Height (in): 3.38 Bonded Sleeve: No Standard Bolt Size: M24