Wilden 04-1080-52-50 1.5 in Buna-N Check Valve Ball AODD Pump PK8

This is a factory-sealed bag of 8 genuine Wilden OEM check valve balls, part number 04-1080-52-50, designed as direct replacement check (ball) valve components for Wilden 1.5 in (P4/PS4 series) air-operated double-diaphragm (AODD) pumps. Each ball is molded from Buna-N (Nitrile) elastomer — confirmed by the "52" material designator in the part number — providing resistance to petroleum-based oils, fuels, water, and a broad range of industrial fluids, while maintaining dimensional integrity across typical AODD operating pressures up to 125 PSI. The "04" pump-size prefix indicates fitment for Wilden 1.5 in pump models, and "1080" identifies the ball check geometry specific to that platform; the "50" suffix denotes the Buna-N 50-durometer compound. Wilden assembles these parts in the USA (Grand Terrace, CA) and packages them in factory-labeled poly bags with quantity-verified counts; this listing contains all 8 balls as shown in the original sealed packaging. Compatible Wilden models include the P4, PS4, PX4, and equivalent 1.5 in AODD platforms that use Wilden's standard ball-valve check design.

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