9.0102.00 BRASS PACKING

SKU: 1646

The 9.0102.00 brass packing is a high-pressure water seal for triplex plunger pumps — one of the V/U-cup rings that seats in the head's seal stack around each plunger and contains the full operating pressure. Over thousands of strokes, friction against the plunger wears the sealing lips, and the telltale symptoms are water leaking from the pump head or pressure that won't hold under load. Packings wear as a group, so a full reseal of all cylinders is the reliable fix rather than swapping a single ring. Match part number 9.0102.00 to your pump's parts list or data plate, and check plunger diameter — this packing must be the correct size for your plungers to seal.