TUFF RINGS

*One O-ring used in Ford part # DR3Z8566A "T-Connector" where it connects to the thermostat and water pump. This O-Ring is not available from Ford but is easily replaceable... *Two O-rings used in upper and lower radiator hose quick connectors. Replaces Ford part # BC3Z-8590-F... *One O-ring that replaces the one in hose BL3Z8C350A which connects to the expansion tank BL3Z-8A080-B