OEMTOOLS 24506 Cooling System Backflush Tool – Heater Core & Radiator Flush Valve, Brass Adapter Fits 1/2", 5/8", 3/4" Heater Hoses

When your heater core is clogged, so many problems can arise. Solve this problem with the OEMTOOLS 24506 Cooling System Back Flush Tool. The innovative design of the heater core flushing tool creates the perfect amount of water pressure to clean out your heater core. You can unclog heater cores on most cars and trucks. The valve of the cooling system flush tool allows you to precisely control the amount of water you want to spray, giving you the upper hand in a heater core cleaning. Designed with non-corrosive aluminum, the heater core flushing valve is weather and rust resistant and will last for years to come. Bring your heater back to life with this heater core flush tool. You don’t have to worry about leakage with this radiator flush tool. This coolant flush tool makes back flushing heater cores ultra simple and easy so you have time to get to other pressing repairs. The shut-off valve on the nozzle minimizes mess and seals for added protection. Attach the back flush valve to any standard hose and you’re ready. The backflush tool can fit 1/2 inch, 5/8 inch, and 3/4 inch size heater hose fittings. To use, remove the radiator cap and drain the coolant. Remove heater hoses from the engine, insert the stepped adapter end of the tool into the hose opposite of the one connected to the water pump. Connect the adapter to the water supply. Turn the water supply on and open the valve to allow water to flow through the heater core. Once water is clean and clear, your heater core is clean.

• Flush Fast: Quickly clears rust, sludge, and debris from heater cores and cooling systems.
• Full Control: Built-in brass shut-off valve lets you adjust flow rate precisely.
• Universal Fit: Connects to ½”, ⅝”, and ¾” heater hoses — fits most vehicles.
• Built to Last: Non-corrosive brass and aluminum construction for long-term reliability.
• Shop-Ready: OEMTOOLS design trusted by pros for fast, mess-free coolant system maintenance.