Heater Core Coolant Outlet to Water Pump Hose [with KC4 option]

For use on Corvettes with the optional oil cooler (KC4).  The KC4 option can be identified on the Corvette by where the oil filter screws into.  If the oil filter screws into an oil cooler with an inlet and an outlet pipe which is then affixed to the engine block, you have the KC4 option.  If the oil filter screws directly into the engine block, you do not have the KC4 option.

Our Molded Corvette Coolant Hoses are designed to transfer glycol-based coolants to and from the heater core, by-pass to the radiator, as well as through other components in the vehicle’s coolant system. Original configurations available to ensure proper fit. Features EPDM tube and cover with synthetic knit reinforcement, and is compatible with most coolants including ethylene glycol- and propylene glycol-based coolants, as well as organic acid modified, long-life coolants. Meets or exceeds SAE 20R3EC Class D1 and Class D2 specifications as well as many original equipment specifications. Resistant to Electrochemical Degradation (ECR). ID Range: 1/4-inches to 1-3/8-inches and includes intersect hose configurations. Temperature range: -40F to 275F (-40C to 135C). Not for use in fuel or oil transfer applications.

Manufactured for Davies by one of GM's original suppliers

This is the upper molded 3/4" hose on the heater core. The 3/4" hose connects the heater core to the water pump fitting and branches to the 5/8" oil cooler pipe and the 5/16" small coolant vapor pipe. All fitments are correct to the original Corvette.

This product fits the following Corvette model years: