Make cleaner electrical repairs with the Dorman - HD Solutions Fuel Injection Harness Connector Pigtail 645-1001, a 2-wire pigtail with a waterproof male connector, female terminals, and a locking clip. It's a direct-fit replacement across a wide range of Ford, IC Corporation, and International applications, including the 1999-2003 Ford F-250 Super Duty, 2000-2003 Ford Excursion, and 1995-1998 Ford E-350 Econoline — see the "Vehicles it fits" section for the full list and engine details.
- Professional appearance: designed for a clean, professional look once installed.
- Convenient service: allows the circuit to be quickly disconnected for service or occasional use.
- Durable construction: features weatherproof seals and a locking tab for a reliable connection.
- Versatile component: can be used in a variety of repairs and custom accessory installations.
If a damaged, corroded, or melted original connector is the cause of an intermittent or lost circuit, this pigtail lets you splice in fresh terminals rather than replacing the entire harness. Match the wiring and terminal layout to your original before installing.
Interchange: 577.99516
57799516 · 3669748 · 6E7Z12A690DA · 2501107C1 · S2876
This part cross-references / interchanges with the following part numbers:
577.99516, 3669748, 6E7Z12A690DA, 2501107C1, S2876
Frequently Asked Questions
What is this part?
It's a 2-wire fuel injection harness connector pigtail with a waterproof male connector, female terminals, and a locking clip for a reliable quick-disconnect connection.
What vehicles does it fit?
It fits many Ford, IC Corporation, and International vehicles, such as the 1999-2003 Ford F-250 Super Duty, 2000-2003 Ford Excursion, and 1995-1998 Ford E-350 Econoline. See the "Vehicles it fits" section for the full list.
Why would I replace the original connector?
If the original connector is corroded, melted, or damaged and is the cause of an intermittent or lost circuit, this pigtail lets you splice in fresh terminals instead of replacing the whole harness.
Is it weatherproof?
Yes. It features weatherproof seals and terminals plus a locking tab, which helps maintain a reliable connection.
What interchange numbers does it replace?
It replaces 577.99516 (57799516), 3669748, 6E7Z12A690DA, 2501107C1, and S2876.
