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The ARROWHEAD BRASS PLUMBING PK8006 is a replacement stem assembly designed for frost free yard hydrants. The stem assembly is the internal operating component that controls water flow and enables the hydrant to drain after each use, preventing freeze damage in cold climates. At 6 inches in length, this part restores proper function to a worn or damaged hydrant without requiring full fixture replacement. Licensed plumbers and irrigation technicians rely on this type of direct OEM-style replacement to keep hydrants operational through seasonal freeze-thaw cycles. The package contains 6 units, making it practical for service fleets and supply stocking.
This stem assembly is intended for use with Arrowhead Brass 450 Series and 480 Series frost free hydrants in residential and light commercial applications. Frost free hydrants are commonly installed on exterior building walls, in agricultural settings, and at irrigation points where the supply line is exposed to freezing temperatures. This replacement part addresses stem wear, breakage, or seal failure that results in improper shutoff or failure to drain. The clam shell packaging keeps components protected and organized on the service truck or in the shop.
Designed as a replacement stem assembly for Arrowhead Brass 450 Series and 480 Series frost free hydrants.
Installation should be performed by a licensed plumber following all applicable local plumbing codes, including IPC guidelines. Shut off the water supply at the upstream isolation valve and relieve line pressure before disassembling the hydrant. Use appropriate hand tools to remove and replace the stem assembly, taking care not to damage the hydrant body or packing nut threads during service.
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