Motorcraft
Motorcraft SW-1951C Genuine Starter Solenoid Switch
Motorcraft SW-1951C Genuine Starter Solenoid Switch
✔ Motorcraft SW-1951C Starter Solenoid Switch — Genuine OEM Part
✔ Fitment: Select 1980s–1990s Ford, Lincoln, and Mercury vehicles (F-150, F-250, F-350, Ranger, Bronco, Mustang, and more)
✔ Direct replacement for factory starter solenoid relay — no modifications required
✔ Manufactured to Ford’s original specifications
✔ Genuine Motorcraft quality — 4.7-star rating from over 1,000 users
✔ 144-watt output — reliable engine starts every time
Motorcraft SW-1951C Genuine Starter Solenoid Switch — for Classic Ford Vehicles
A clicking sound when you turn the key, slow engine cranking, or a complete failure to start — these are common signs that your starter solenoid switch has failed. The solenoid acts as a high-current relay, connecting the battery to the starter motor to crank the engine. Replacing it with this genuine Motorcraft part restores reliable starting performance.
This is a factory-original Motorcraft starter solenoid switch (part number SW-1951C). It is a direct-fit replacement designed with the correct factory tolerances for a straightforward installation. The solenoid is typically mounted on the passenger-side fender apron and is constructed from high-quality materials to resist abrasion and corrosion.
When to Replace
When to Replace
Product Details & Highlights
Product Details & Highlights
Package Contents
Package Contents
FAQ
FAQ
Motorcraft SW-1951C Genuine Starter Solenoid Switch
OEM Part Numbers
• SW-1951C
• E9TZ-11450-B
• F5TU-11450-BA
Vehicle Fitment Table (OEM Compatibility)
| Brand | Model | Years | Notes |
|---|---|---|---|
| Ford | F-150 | 1993–1995 | SVT Lightning |
| Ford | F-150 | 1996 | Eddie Bauer (5.8L) |
| Ford | F-250 / F-350 | Various | 5.8L / 7.3L IDI diesel |
| Ford | Ranger | 1986–1995 | Various engines |
| Ford | Bronco | Various | 5.8L |
| Ford | Mustang | Various | 5.0L |
| Ford | F600 / F700 / F800 | 1991–1999 | Medium duty trucks |
⚠️ Important Fitment Notes:
• Always verify by VIN – This solenoid fits specific Ford vehicles from the 1980s and 1990s. It is not compatible with all F-150 engines (e.g., some 4.9L applications require a different part).
• Direct replacement – Designed as a direct-fit replacement for the original factory solenoid.
• Genuine Motorcraft quality – This is an OEM part, not an aftermarket replica.
Condition
New (100% genuine Motorcraft packaging)
Product Type
Starter Solenoid Switch (Relay Assembly)
Function
The starter solenoid acts as a high-current relay, connecting the battery to the starter motor when the ignition key is turned. It engages the starter motor to crank the engine.
Applications
This starter solenoid fits select Ford, Lincoln, and Mercury vehicles from the 1980s and 1990s, including F-Series trucks, Ranger, Bronco, and Mustang.
Important: This solenoid is designed for specific Ford applications. If in doubt, send us your VIN before ordering.
Technical Specifications
| Brand | Motorcraft (Genuine OEM) |
|---|---|
| Part Number | SW-1951C |
| Type | Starter Solenoid Switch (Relay Assembly) |
| Wattage | 144 watts |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Mounting Type | Fender Mount |
| Warranty | 24-month/unlimited mileage |
| Condition | New (factory original) |
Warranty
Ford's 24-month/unlimited mileage limited warranty applies. For claims, please contact your nearest Ford authorized dealer with your proof of purchase.