Product Details:

• Washer
• Made by UDOR
• Part # 1403.05 
• D8.4
• Replacement Part for the Following Pump Model #s: CC 26/20-GR, CC-42/14-S, CC-50/12-S, CD-11.0/22-S, CD-12.0/20-S, CKC-17/28-S, CKC 21/36-GR, CKC-42/18-S, CKC-50/15-S, CKC-50/18-S, CXC 70/15-S, DELTA 40 GR3/4, DELTA 100 1C, DELTA 125 VA, DELTA 125 VAGR1, KAPPA 151 GR, OMEGA 140 TS2C, and PENTA-C 30/500 R  
• Replacement Part for the Following Pump Gear Reducer Model #s: 5034.B5, 5071.75, 5119.H2, 5119.H3, and 5120.H2   

This part is highlighted on the bottom right corner on the pump diagram shown on this page.