Timsec 4-Pack 1/4″ NPT Thermal Relief Valve

The **Timsec 4-Pack 1/4″ NPT Thermal Relief Valve** is a critical safety component for pressure washer pumps, designed to prevent overheating by regulating water flow when temperatures exceed safe limits. Each valve is constructed from heavy-duty brass, offering superior durability and resistance to corrosion, oil, and wear—making it ideal for long-term use in demanding conditions. The design ensures reliable performance by sealing until the pump inlet reaches **145°F (63°C)**, at which point the valve’s internal seal melts, expelling hot water and allowing cooler water to circulate. This automatic response helps maintain optimal operating temperatures and extends the lifespan of your pressure washer pump.

Compatible with a wide range of leading brands—including **Generac, Homelite, Karcher, Briggs & Stratton, Power Stroke, Husky, Black Max, Craftsman, Him Ore, and Ridged**—this valve serves as both a direct replacement part and a universal solution for pressure washer maintenance. It fits specific models such as Homelite part numbers **678169004, 678169002, and 678169001**, as well as Briggs & Stratton parts **208673GS, 21783GS, 194298GS, and B3090GS**. Installation is straightforward thanks to the **1/4″ NPT threaded connection**, which allows for easy attachment and removal without specialised tools. The pack includes **four valves**, providing ample stock for replacements or multi-pump setups.

Built to Australian standards for reliability, this valve prioritises safety and efficiency, reducing the risk of pump failure due to thermal stress. Whether you’re servicing a single unit or maintaining a fleet of pressure washers, the Timsec thermal relief valve offers peace of mind with its robust construction and proven compatibility. Order with confidence—this is a trusted component for professionals and DIY enthusiasts alike.