Replace a worn, corroded or damaged relay plug with the Standard Ignition relay connector, part number S-640. It fits many vehicles, among them the 1983-1992 Ford F-150, 1983-1992 Ford F-250 and 1991-1992 Ford Explorer. See the Buyer's Guide tab for the full list. This factory-assembled connector is listed as an HVAC blower motor relay connector, a trailer tow relay connector and an A/C auto temperature control relay connector. It links the vehicle's wiring to the relay.
- Built to OE standards: Standard makes its components to exact OE standards in facilities certified to TS16949 and ISO9001, and designs them for specific vehicle applications.
- Tested at every stage: Each connector goes through thorough quality checks and rigorous testing throughout production.
- Simple installation: The connector comes factory-assembled and is designed to install without specialized tools.
- High-grade materials: The materials are chosen for good conductivity and a solid connection.
Standard backs its connector line with decades of research and development focused on what technicians need. Where the original equipment fails, it designs its replacements to address those inherent failure points. A connector that is corroded, cracked or heat-damaged, or that has loose terminals, can cause intermittent operation or no operation of the circuit it feeds. If the original plug is the cause, S-640 replaces it. Note that this is the connector, not the relay itself.
Interchange: PT5689 · 424 · EC204 · 5609
