Udor PND 3.5/20-S P-Series Plunger Pump shipclass=85 and four o-rings

and four o-rings

Qty 2 9910-650920 O-Ring

-Carbon ceramic seal with stainless steel cup and spring with FKM (Viton) rubber

With this nylon and aluminum relief valve in place

If the oil in your pump turns a milky gray color

Udor PND 3.5/20-S P-Series Plunger Pump shipclass=85 and four o-ringsUdor PND 3. 5 20 S P Series Plunger Pump 3. 5 gpm, 2000 psi, 5 HP Electric Power Requirement. 1750 RPM, 24MM Solid Keyed Shaft Features: 7 3 4" L x 8" W x 4" H (Solid Shaft Model) 3 8" Inlet 3 8" Outlet Brass Manifold Solid Ceramic Plungers Heat Treated Crankshaft Stainless Steel Check Valves Dual Oil Sight Gauges Direct Drive Electric Flange Models Stainless Steel Piston Guides Heavy Duty Flat Base High Pressure Seals High Strength Aluminum Alloy or