Standard Ignition DFH106 Diesel Exhaust Fluid (DEF) Heater

DEF Heater for Silverado and Sierra HD

Standard Ignition DFH106 is a direct-fit Diesel Exhaust Fluid (DEF) heater for select Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus GMC Sierra 2500 HD and Sierra 3500 HD applications. It is built for OE-style fit, form, and function, with materials chosen for conductivity, sealing, and durability in demanding diesel emission systems.

Key Features

• Direct-fit OE replacement for straightforward installation and proper alignment
• Aluminum terminal for strong electrical conductivity
• Viton O-rings for sealing under extreme operating conditions
• High-composite plastic sensor housing for added service life
• Standard Ignition DFH106 for diesel exhaust fluid heater service

Product Details

This DEF heater is used in emission control systems that keep diesel exhaust fluid at the proper operating temperature. Standard Ignition DFH106 is engineered as an OE replacement, making it a practical choice for 2011-2016 Chevrolet Silverado 2500 HD, 2011-2016 Chevrolet Silverado 3500 HD, 2011-2016 GMC Sierra 2500 HD, and 2011-2016 GMC Sierra 3500 HD trucks. This part cross-references Bosch F01C600337 for the same application.

Common Issues It Can Address

• DEF heater circuit faults
• Frozen or poorly heated DEF in cold-weather operation
• Emission system warning lights related to DEF temperature control
• Sealing concerns at the heater interface
• Reduced heater performance from worn OE-style components

Installation Notes and Tips

Verify the part number and vehicle application before installation. This component is a direct-fit replacement, so it is intended to match OE mounting and connection points on the listed Silverado HD and Sierra HD models. Inspect related emission system components, connectors, and sealing surfaces during service to help ensure proper operation after replacement.

Quality Assurance

Standard Ignition specifies OE-style fitment, an aluminum terminal for conductivity, Viton O-rings for sealing, and a high-composite plastic sensor housing for durability. These material choices support reliable service in diesel emission control applications.