0009.0106.00 BRASS PACKING

SKU: 1645

Brass packings are the V- or U-cup high-pressure water seals that do the hard work in a triplex plunger pump: each packing rides on its plunger and holds back the full discharge pressure on every stroke. They sit in the seal stack in the pump head, supported by brass rings, and wear gradually from friction and heat — water weeping from the head or a slow pressure drop are the classic signs they are done. Replace all packings as a set rather than one at a time so every cylinder seals evenly. This is part number 0009.0106.00; verify it against your pump's exploded parts diagram or data plate, and measure your plunger diameter, because packing size must match the plunger exactly.