service kit: low pressure seals KIT 147 Low pressure seal kit Udor code 6061F5 In the kit Part numberDescriptionQty 0023713 1101B23 1221453 Fits these pumps Udor CH 1 CHC 20/50 S Udor CX 4 CXC 18/50 SCXC 22/50 SCXD 3.5/75 SCXD 6.0/75 S