Standard Ignition DS-840 Door Jamb Switch - Front

Door Jamb Switch for Ford E-Series

Standard Ignition DS-840 is a direct-mount door jamb switch built for front-door applications on Ford E-Series vans and wagons. It uses copper alloy conductors for strong electrical conductivity and low resistive loss, with 100% testing for mechanical and electrical switching performance.

Key Features

• Door jamb switch for front door mounting
• Direct mounting type for straightforward replacement
• 3-terminal design with male connector and female terminals
• Black and white body with dichromate and plastic finish
• Copper alloy conductors for stable electrical transfer
• Standard Ignition DS-840 for Ford E-150, E-250, and E-350 applications

Detailed Description

This Standard Ignition DS-840 door jamb switch is used to signal door-open and door-closed status in the vehicle electrical system. It is a direct replacement for front-door applications on Ford E-150, E-250, E-350, and related Econoline and Club Wagon models, including 1992-2023 Ford E-Series coverage. This part cross-references 1S1309 and 6C2Z13713BA for the same application.

Built with robust materials and copper alloy conductors, the DS-840 is made to maintain consistent switching action and dependable electrical contact in daily service use. If you are replacing a worn Ford E-350 Super Duty door jamb switch or servicing a Ford E-150 Econoline front door switch, this part number provides a direct-fit service solution.

Common Problems It Can Help Solve

• Interior lights staying on or not turning on when the door opens
• Door-ajar warning staying illuminated
• Intermittent dome light or courtesy light operation
• Faulty door-open signal to body control circuits
• Worn or inconsistent switch response at the front door

Installation Notes and Tips

Install the DS-840 in the front door mounting location using the direct-mount design. Verify connector style, terminal count, and physical fit before installation, especially on Ford E-150, E-250, and E-350 models. Confirm the original switch is the same style and location before replacing it.

Quality Assurance

Standard Ignition tests this door jamb switch for both mechanical action and electrical switching performance. The design uses durable materials selected for service-professional repair work and consistent operation in automotive electrical systems.