Genuine Paccar 5502-17 DEF Heater Control & Coolant Solenoid Valve

Genuine Paccar 5502-17 DEF Heater Control & Coolant Solenoid Valve

Product Overview

Protect your aftertreatment system from extreme cold with the Genuine Paccar 5502-17 DEF Heater Control Valve. This high-performance 2-way solenoid is a critical component for Peterbilt and Kenworth trucks, specifically designed to regulate the flow of hot engine coolant to the Diesel Exhaust Fluid (DEF) tank and lines.

By preventing DEF from freezing (which occurs at 12°F / -11°C) and rapidly thawing the system after cold starts, this valve ensures your emissions system remains compliant and operational in even the harshest winter conditions.

Key Features

• OEM Performance: A genuine Paccar factory part ensures exact fitment and communication with the vehicle's ECU, avoiding the "check engine" lights often caused by aftermarket sensors.

• Winter Protection: Automatically cycles engine coolant to maintain optimal DEF temperature, preventing crystallisation and line blockages.

• Dual-Voltage Compatible: Engineered for standard 12V electrical systems common in heavy-duty Paccar applications.

• Heavy-Duty Build: Designed to withstand high engine bay temperatures and constant vibration without leaking or seizing.

• Precision Control: Features the updated 3-bolt mounting design for a more secure and stable installation compared to older revisions.

   

Specifications

Vehicle Compatibility

This valve is the standard OEM replacement for many modern Paccar-powered vehicles, including:

• Peterbilt Models: 579, 567, 389, and 367

• Kenworth Models: T680, T880, T800, and W900

• Engines: Paccar MX-11 and MX-13

Pro Tip: Because there are several similar-looking valves, we highly recommend verifying your VIN or the last 8 digits of your Chassis number before ordering to ensure this is the correct revision for your specific build.

Pigtail for 5502-17

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