Standard Ignition FWH102 Diesel Exhaust Fluid (DEF) Pump Wiring Harness

DEF Pump Wiring Harness for Ford Super Duty

Restore reliable DEF pump electrical connections with this Standard Ignition wiring harness. The FWH102 is a plug-and-play replacement that installs between the factory harness and the pump, helping simplify service on 2017-2019 Ford F-350 Super Duty diesel applications.

Built to OE specifications and tested for fit and function, this DEF pump wiring harness addresses damaged connectors and heat-related connection issues without requiring custom wiring work.

Key Features

• Direct replacement DEF pump wiring harness for diesel exhaust fluid system service
• Plug-and-play design connects between the factory harness and pump
• High-temperature connector material helps resist melting at the connection point
• OE-spec testing supports consistent electrical performance and long service life
• Female and male connector design with blade and pin terminals
• Fits 2017-2019 Ford F-350 Super Duty

Detailed Description

Standard Ignition FWH102 is a diesel exhaust fluid pump wiring harness made for Ford Super Duty emission system repair. It is engineered to replace broken, damaged, or corroded wiring connections at the DEF pump, helping restore proper electrical continuity in the emission control system. This part cross-references Ford HC3Z14407B for the same application.

For technicians and owners servicing a Ford F-350 Super Duty, the FWH102 offers a direct-fit solution that connects cleanly between the factory harness and the pump. The OE-style construction and high-temp connector design support dependable operation in demanding underbody and exhaust-adjacent environments.

What It Helps Fix

• Broken DEF pump wiring connections
• Corroded terminals at the pump harness interface
• Heat-damaged connector housings
• Intermittent DEF pump electrical faults
• Emission system warning lights related to wiring failure

Installation Notes and Tips

Install the FWH102 by connecting it between the factory harness and the DEF pump using the existing OE-style interfaces. Verify connector alignment before seating the terminals, and inspect the surrounding harness for corrosion, abrasion, or heat damage before completing the repair. This part is listed for 2017-2019 Ford F-350 Super Duty applications.

Quality Assurance

Standard Ignition states that this harness is extensively tested to OE specifications to support proper performance and service life. The FWH102 is built with a high-temperature connector to help reduce melting at the connection point and maintain reliable DEF pump wiring integrity.