12V Starter Solenoid Relay – 3 Terminal Intermittent Duty with Suppression Diode – Compatible with 66-205, F4DZ-11390-A, SW2502A – Compatible with Ford, Lincoln, Mercury Applications

Product Description The STS Parts 12V Starter Solenoid Relay is a reliable aftermarket replacement designed for use in compatible vehicle and equipment starter systems. This solenoid features a 3-terminal configuration and is designed for intermittent-duty operation, helping deliver consistent electrical current from the battery to the starter motor during ignition. The included suppression diode helps reduce voltage spikes and supports electrical system protection. Compatible with multiple part numbers including 66-205, F4DZ-11390-A, F02Z-11390-A, and SW2502A, this unit provides a practical solution for replacing worn or faulty starter solenoids. Manufactured by STS Parts, this solenoid is built for durability and designed for proper fitment in supported applications, including selected Ford, Lincoln, Mercury, and marine systems. Specifications Part Type: Starter Solenoid Relay Voltage: 12 Volts Terminal Quantity: 3 Battery Terminal: 8mm x 1.25 Motor Terminal: 8mm x 1.25 Switch Terminal: Male Spade (LH) Duty Cycle: Intermittent Duty Suppression Diode: Yes Case Diameter: Approx. 51mm Mounting Type: Hole Cap Design: Crimped Plunger Type: Non-Removable Interchange / Compatible Part Numbers Compatible with: 66-205, 66205, 18-6291, 186291, F4DZ-11390-A, F02Z-11390-A, F02U-11390, F0OU-11390, F3VY-11390-A, F3VY-11390-B, F77U-11000-AA, F77Z-11002-AA, E90Z-11390-A, E2VU-11390-AA, SW2502A, SW2508, SW5038, SW2188, SW2207, SW2245, SFD6010, ZM760, 245-14003, 245-14009, 245-14011 and more Vehicle Applications Compatible with selected applications including: Compatible with Ford E-Series Vans, F-Series Trucks, Ranger, Explorer, Aerostar Compatible with Mazda B-Series Trucks (including B4000) Compatible with Lincoln and Mercury models Compatible with selected marine applications (Fitment varies by engine, year, and configuration. Always verify part number before purchase.) Package Includes 1 × STS Parts Starter Solenoid Relay Important Fitment Note This is an aftermarket replacement part. Please confirm your original part number, terminal configuration, and specifications before purchase to ensure compatibility.

• ✅ STS Parts Quality – Aftermarket Replacement Manufactured by STS Parts, this starter solenoid relay is designed as a dependable aftermarket replacement for worn or failing starter solenoids. Built for consistent starter engagement and performance.
• 🔧 Compatible with Multiple Part Numbers Compatible with 66-205, F4DZ-11390-A, F02Z-11390-A, F02U-11390, F0OU-11390, SW2502A, SW2508, SW5038, 18-6291, 186291, 245-14003, 245-14009, 245-14011 and more. Verify part number before purchase.
• ⚡ 12V 3-Terminal Configuration Designed for 12-volt systems with a 3-terminal layout: Battery Terminal: 8mm x 1.25 Motor Terminal: 8mm x 1.25 Switch Terminal: Male Spade (LH)
• 🔋 Intermittent Duty with Suppression Diode Built for intermittent-duty operation and includes a suppression diode to help protect electrical components from voltage spikes.
• 🛠️ Durable Construction & Reliable Performance Engineered for dependable operation with strong contact clamping force and consistent electrical transfer for proper starter function.
• 🚗 Compatible with Multiple Vehicle Applications STS Parts starter solenoid relay compatible with Ford, Lincoln, Mercury, and marine applications. Suitable for use in trucks, vans, SUVs, and other supported systems.