An aftermarket four-port bypass heater valve for a matching cooling-system installation using 16 mm (5/8-inch) heater hose. The metal valve has a mechanical control lever and cable-mounting bracket.
Configuration
One four-port bypass heater control valve
Hose size: 16 mm / 5/8 inch
Metal body with the pictured lever and bracket
Replacement references: 85698014, 1621-85698014, H38C-5104-000 and 1BD-84D-28C
Match the complete installation
Confirm hose size, port orientation, bypass routing, bracket position and control-cable travel against the original valve. This is a four-port bypass design; it is not interchangeable with every two-port inline heater tap. Matching the hose diameter alone does not establish vehicle compatibility.
Control cable, hoses, clamps and coolant are not included. Installation and routing should be checked by a qualified mechanic. Work only on a cold cooling system and check for leaks and correct heater operation after installation.
