12VDC 119233-77951 Fuel Shut-Off Solenoid for Yanmar B25V, B30V, VIO20

   The 119233-77951 is a 3-wire, dual-coil solenoid designed for high-reliability applications. The three wires correspond to the Ground, Pull, and Hold circuits. This design allows the solenoid to provide a powerful initial "pull" to overcome the fuel rack's spring tension during startup, while utilizing a much lower "hold" current to keep the engine running, preventing the coil from overheating during long hours of operation.

The SPARKLING MACHINERY NEW 119233-77951 Solenoid Valve Photo:

Why Choose the SPARKLING 119233-77951 Solenoid Valve?

• • • • • • • • • • • • • • • • • • • • • • • • • •    - Dual-Coil Reliability: Prevents electrical burnout by switching from a high-amp pull circuit to a low-amp hold circuit.

                                                  •    - Direct OEM Fit: Engineered to match the mounting bolt pattern and plunger length of Yanmar TNV and TNE series engines.

                                                  •    - Weather-Sealed Connector: Features a heavy-duty plug designed to resist the dirt, grease, and moisture common in excavator engine bays.

                                                  •    - Emergency Safety: Ensures the engine shuts down instantly if the electrical system is compromised or the ignition is killed.

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                                          • Compatible Yanmar Excavator Models

                                            This solenoid is primarily used in the following compact Yanmar machines:

                                            Machine Model	Series	System Voltage
                                            B25V	B-Series	12V DC
                                            B30V	B-Series	12V DC
                                            VIO20	VIO-Series	12V DC
                                            VIO25	VIO-Series	12V DC

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Q&A Section

Q1: My engine starts but stops immediately as soon as I let go of the key. Is this solenoid the cause?

A: This is a classic symptom of a failed "Hold" coil in the 119233-77951. The solenoid successfully pulls the fuel rack to start the engine, but because the hold circuit is broken, it cannot keep it open once the ignition switch moves from "Start" to "On."

Q2: Can I install this solenoid myself?

A: Yes, installation is straightforward. However, it is vital to ensure the plunger is correctly hooked into the fuel rack lever inside the injection pump housing. If the plunger isn't aligned, the engine may either fail to start or fail to shut down.

Q3: Is the 119233-77951 compatible with 24V machines?

A: No. This specific part number is strictly for 12VDC systems. Installing a 12V solenoid on a 24V machine will cause the coil to burn out almost instantly.

About SPARKLING MACHINERY:
   - Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.

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