Oil Wick for 4014 / 4018 / 4025 Pump

The oil wicks lubricates the plunger inside of the US Jetting high pressure water pump. They are made of felt so they can become deformed, fray, or worn over time. They also will change color as they age, going increasingly darker. They do not require replacement when discolored, but only when they are no longer structurally intact. When one requires replacing it is recommended to replace all three. It’s also suggested to replace the oil wicks whenever the oil low pressure oil sales are replaced. This component is used on 4000SI at 14, 28, and 25 GPM jetting units.