Standard Ignition EFH203 Diesel Exhaust Fluid (DEF) Heater

Diesel Exhaust Fluid Heater for Transit Vans

Standard Ignition EFH203 is a direct-fit Diesel Exhaust Fluid (DEF) heater built for OE-style replacement on select Ford Transit vans. It is engineered to maintain proper DEF fluid temperature and support reliable emission system operation on 2015-2019 Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD applications.

This DEF heater is designed around the original connector layout and mounting requirements for a straightforward service replacement. The Standard Ignition EFH203 also cross-references 800-6752 and CK4Z5L227B for the same application.

Key Features

• Direct-fit OE replacement for emission system service
• Designed to maintain optimum DEF fluid temperature
• Built to precise specifications for proper fit, form, and function
• Connector configuration: 1 rectangular connector with 7 blade terminals
• Compatible with Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD model years 2015-2019

Detailed Description

The Standard Ignition EFH203 Diesel Exhaust Fluid heater is intended for diesel emission control systems that require stable DEF temperature management. By matching OE-style dimensions and electrical connection requirements, it supports a clean replacement on Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD vans from 2015 through 2019. The part number EFH203 is a practical choice when servicing DEF heater faults on these Transit platforms.

Standard Ignition manufactures this component to controlled specifications to help preserve proper fluid heating performance and consistent system operation. The rectangular 1-connector, 7-blade terminal design helps ensure the electrical interface matches the original application.

What It Helps Address

• DEF heater fault codes related to fluid temperature control
• Cold-weather DEF system performance issues
• Emission system warnings on Ford Transit diesel vans
• Improper DEF heating caused by a failed OE heater
• Service replacement needs on Transit-150, Transit-250, Transit-350, and Transit-350 HD

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle application before installation. This part is listed for 2015-2019 Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD models, with no position specified. Confirm the original heater configuration and inspect the DEF system connectors and harness condition during service. The direct-fit design is intended to align with OE mounting and electrical requirements for a cleaner repair.

Quality Assurance

Standard Ignition is a global manufacturer that maintains quality control throughout the production process. EFH203 is built to precise specifications to support consistent fit and function in the intended Ford Transit diesel applications.