$8.00 – $9.25
The compression washer 2.75″, 3.5″ OR 3.75″ is part of the piston cup kit in the rocker arm section of the pump.
Western part:
3-3/4″ 1400 350 250
3-1/2″ 1400 350 251
2-3/4″ 1400 350 252
2.75", 3.5", 3.75"