Cable Operated Bypass Heater Valve Kit. 

Heater bypass valve can be used with aftermarket or factory heaters to regulate the coolant flow and adjust heater temperature. Manual heater valve can be closed in summer to stop coolant flow and help reduce excess heat from enterning the passenger compartment.

Includes: Cable operated bypass heater valve (Pull to open) and control cable w/ mounting bracket.

Heater valve fits 5/8" heater hose, with sleeve adapters for 3/4" heater hose applications.

Meaurements are:  Cable itself is 48",  Total length including knob and end loop is 51-1/2"