Description PTO Output: 1-3⁄4" 20 spline (SAE) 1000 rpm femaleInstruction ManualHypro 9028C-O Instruction Manual Part Breakdown Reference Number Part Number Description Required 12406-0007Drain Plug4 20150-9000CPump Casing (w / SS wear ring)1 2A3430-0480SPPump Casing (Self-Priming Units)1 32253-0001Impeller Nut1 40400-9000PImpeller (Nylon)1 51700-0101Gasket1 62120-0010Mechanical Seal (Optional Buna-N)1 62120-0011Mechanical Seal (Standard Viton)1 71720-0083O-ring1 80752-9000CMounting Flange Adapter Hex Head1 92210-0020Capscrew4 101720-0139O-ring1 112130-0018Bearing Lip Seal1 121700-0098Gasket1 131810-0013Retaining Ring — (1) required for 540 rpm, (2) for 1-3/8" and (3) for 1-3/4" 1000 rpm* 142008-0001Ball Bearing1 151820-0025Retaining Ring1 152210-0046Capscrew3 160500-9002Impeller Shaft (1000 rpm)1 173900-0013Sun Gear (1000 rpm)1 181810-0011Retaining Ring (1000 rpm)1 192210-0046Hex Head Capscrew3 202270-0003Washer3 212265-0003Thrust Washer6 222007-0052Bearing (included with driver gear)3 232007-0022Bearing Inner Race3 243900-0040Driver Gear w/Bearing (1000 rpm) 32 teeth, Dia. 2.13”3 250562-9002DDriver Hub (Model 9008C-O)1 260501-9018DDriver Hub (Model 9018C-O)1 271610-0005Key1 280501-9016DDriver Hub (Model 9016C-O)1 293435-0058Locking Collar Kit (hollow shaft)1 300562-9000DDriver Hub (Model 9006C-O)1 313900-0039Driver Gear w/Bearing (540 rpm) 39 teeth, Dia. 2.6"3 323900-0010Impeller Shaft/Pinion Gear (540 rpm)1 331610-0012Woodruff Key **(1) req’d for 540 rpm, (2) req’d for 1000 rpm models** 342220-0035Capscrew (Model 9028C)1 352403-0012Bushing (Model 9028C)1 360501-9018D1Driver Hub (Model 9028C)1 371800-0014Retaining Ring1 382005-0002Ball Bearing1 391810-0001Retaining Ring1 403900-0009Ring Gear1 411450-0004Cushion Bumper8 420754-9000CGear Casing1 432210-0026Hex Head Capscrew4 442404-0193Breather Vent1 452102-0025Oil Seal1 461720-0022O-ring1 470550-1322F4Driver Hub (9028C) 1-3/4" Hub 20 Teeth1 483430-0190Locking Collar Kit (Model 9028C)1 492406-0019Oil Plug4 501520-0034Mounting Clip1