part 48687 Spring, Valve Cat Pumps code 48687 Details Cat Pumps number48687 DescriptionSpring, Valve Qty per pump6 Also comes in 31271 Valve kit, NBR (STD)31281 Valve kit, FPM (.0110)31360 Valve kit, NBR (STD)31450 Valve kit, NBR (STD)31460 Valve kit, FPM (.0110)31773 Valve kit, EPDM (.0220)76360 Valve kit, FFKM (.0770)76450 Valve kit, FPM (.0110)77331 Valve kit, EPDM (.0220) Fits these pumps Cat Pumps 15 Frame 6 153015311540E154117301731