Type: Heater Hose Connector. Fit For 2001 - 2006 Chevrolet Silverado 3500 V8 6.6L. Fit For 2007 Chevrolet Silverado 3500 Classic V8 6.6L. It connects the heater tank, engine coolant lines, or thermostat to ensure that coolant is distributed to the heater tank and main radiator, balancing system flow and pressure.
