Genuine Paccar 5502-17 DEF Heater Control Coolant Valve

Keep your aftertreatment system fully operational in sub-zero temperatures with the Genuine Paccar 5502-17 DEF Heater Control & Coolant Solenoid Valve. Engineered specifically for Peterbilt and Kenworth heavy-duty trucks, this 2-way solenoid valve regulates engine coolant flow to thaw frozen Diesel Exhaust Fluid (DEF) and prevent costly emissions shutdown codes. Key Benefits & Features Direct OEM Replacement: Factory genuine Paccar component ensures seamless communication with your truck's ECU—preventing false diagnostic fault codes (DTCs). Freeze & Crystallization Protection: Automatically regulates hot coolant circulation to keep DEF liquid above its freezing point (12°F / -11°C). 4-Bolt Mounting: Features the bracket design. Heavy-Duty Durability: Thermal-resistant body built to withstand harsh under-hood environmental conditions and chemical exposure. Cross-Reference Part Numbers Replaces and interchanges with the following part numbers: Paccar / OEM: 5502-17, 5502-02, 550202, 550217 Kenworth / Peterbilt: F90-6016, F906016, W072846 Other Cross References: 8590890 Vehicle & Engine Compatibility Fits various heavy-duty commercial applications equipped with Paccar MX-11 and MX-13 engines, including: Peterbilt Models: 367, 389, 567, 579 Kenworth Models: T680, T880, T800, W900 Fitment Tip: Solenoid valve designs can vary by model year and build revision. Always verify fitment with your VIN or full Chassis Number prior to ordering. Technical Specifications Manufacturer Paccar (Genuine OEM) Part Number 5502-17 Component Type DEF Coolant Solenoid / Heater Control Valve Operation / Flow 2-Way Electric Solenoid Operating Voltage 12V DC Shipping Weight 1.0 lb