MaySpare Fuel Shut Off Solenoid 12V — Direct Replacement for Yanmar (OEM 119653-77950), 25mm Travel

The MaySpare 12V Fuel Shut Off Solenoid is a direct-replacement electromagnetic valve designed to stop fuel flow on compatible Yanmar and industrial diesel engines.

This aftermarket solenoid fits a range of small diesel engines and serves as a replacement for several OEM numbers, including 1503ES-12S5SUC5S, SA-4562, Woodward 4TNV94L-SFN, and Yanmar part numbers 119653-77950 and 119285-77950. Built for 12V DC systems, the unit uses robust rubber components and springs rated to specified forces to provide reliable hold and return behavior. Before purchasing, confirm the electrical socket and mounting dimensions on your engine to ensure compatibility.

How do I know this solenoid fits my engine?

Confirm fitment by matching the replacement numbers and checking physical mounting and the electrical connector. The MaySpare unit is listed for common Yanmar and industrial engines, but physical verification prevents mismatches.

• Replaces: 1503ES-12S5SUC5S, SA-4562, 119653-77950, 119285-77950
• Compatible engines: Yanmar 3TNE84, 3TNE88, 4TNE84, 3TNV70, 3TNV76, 4TNV84
• Voltage: 12V DC — confirm vehicle/equipment electrical system
• Check socket type and mounting flange before installation

What are the key mechanical and electrical specifications?

This solenoid is engineered for predictable movement and reliable closure. Travel, spring forces, and coil operation are specified to help you assess performance for your application.

• Voltage: 12V DC for standard automotive and industrial systems
• Plunger travel: 25 mm for full actuation
• Hold (engaged) force: 80 newtons; return spring force: 17 newtons
• Coil ignition temperature rating: 180°C; durable rubber and spring materials

How is this solenoid installed and what should I check first?

Installation typically involves removing the old unit, attaching the mounting bolts, and connecting the 12V electrical plug. Verify clearance for the plunger travel and confirm the socket wiring and polarity before energizing.

• Turn off power and drain pressure from the fuel system before starting
• Match mounting holes and flange orientation to your original part
• Check that the electrical connector matches your harness socket
• Test operation briefly with engine off to confirm plunger movement

What durability and performance features should I expect?

The MaySpare solenoid uses quality rubber seals and springs rated to specified forces for consistent operation. The coil is rated to withstand elevated temperatures, and the specified travel and spring values give predictable shut-off behavior.

• Robust rubber components resist fuel exposure and wear
• Spring rates (80 N hold, 17 N return) ensure firm closure and reliable resetting
• 180°C coil ignition tolerance for thermal resilience
• Designed for repeated cycles in typical engine stop/start scenarios

Who is this for: Technicians, fleet managers, equipment owners, and DIY mechanics who need a cost-effective, direct-replacement fuel shut off solenoid for 12V Yanmar-compatible diesel engines. Choose this MaySpare unit when you require a specified-travel, spring-rated solenoid that matches listed OEM numbers — but always verify the connector and mounting before ordering to ensure a correct fit.