Replacement parts for the National 8-P-80.
Liners
National 8-P-80 Fluid End Rebuild Kit
Qty. Description Part No.
3 Liner 5″ Bore PPNO 05464500
3 Liner 5.1/2″ Bore PPNO 05464550
3 Liner 6″ Bore PPNO 05464600
3 Liner 6.1/4″ Bore PPNO 05464625
3 Liner Gasket PPNO 07923276
Pistons
National 8-P-80 Fluid End Pistons
Qty. Description Part No.
3 Piston 5″B PPGD 241TBB045A
3 Piston Rubber Kit 5″B PPGD TBB76024
3 Piston 5.1/2″B PPGD 243TBB045A
3 Piston Rubber Kit 5.1/2″B PPGD TBB76026
3 Piston 6″B PPGD 253TBB045A
3 Piston Rubber Kit 6″B PPGD TBB76028
3 Piston 6.1/4″L PPGD 200TBL045A
3 Piston Rubber Kit 6.1/2″L PPNO 015180284
Valves
National 8-P-80 Fluid End Valves
Qty. Description Part No.
6 Valve Insert PPNO 062400106
6 Valve Seat PPNO 061102604
6 Valve Spring PPNO 055413421
6 Valve Stem Guided PPNO 060152808
6 Gasket Valve Cover PPNO 1540137