PumpLookupPump and motor part numbers
Mains Units

service kit: valves

77078

Valve kit, NBR (STD)

Cat Pumps code 77078

In the kit

Part numberDescriptionPosition
48363Backup Ring, Valve Seat162
26142O-Ring, Valve Seat163
44612Seat, Stepped164
44108Valve166
44109Spring167
44728Retainer, Spring168
44729Washer, Spring Retainer170
89827O-Ring, Valve Plug172
48364Backup Ring, Valve Plug173

Kits per pump: 2.

Fits these pumps

Cat Pumps 36 Frame 4

3621X3621XD3631X3631XD