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The OEMTOOLS 24506 Cooling System Back Flush Tool provides the technician with an easy way to flush the heater core. Simply remove radiator cap and drain the coolant. Remove heater hoses from the engine, place the stepped adapter end of the 24506 Back Flush tool into the hose opposite of the one connected to the water pump. Connect the adapter to the shop water supply. Turn water supply on and open the valve to allow water to flow through the heater core. When the water is clear, you'll know the heater core is clean.Warning - This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm.
