UNLOADER MINI-MATIC 3-4GPM ADJ | 8.712-575.0

SprayMart part number: 8.712-575.0

Supplier-listed description: AR bolt-on unloader valve, model AR21040. Supplier-listed operating flow range: 3.0–4.0 GPM; rated pressure: 2,600 PSI. 1/2-inch female inlet and 3/8-inch male outlet. Fits the supplier-listed RC, XT and XM pump series. Configuration: Brass bypass; adjustable injector marked 2.2 in the supplier table. Match the exact pump model, connections and injector configuration before ordering; these valves are not automatically interchangeable.

Quantity 1 purchases one supplier order unit (piece) of this exact SKU. Kits and assemblies contain the components specified by the supplier for this part number.

Supplier estimated ship date: 10/2/2026, checked September 16, 2026. This is an estimate, not a guaranteed delivery date. Items with later dates are supplier backorders.

Confirm exact part-number compatibility before ordering. Electrical, fuel-system and pressure-control components require qualified installation. Hose-reel listings do not include a length of hose unless expressly stated.