Fuel Shutoff Solenoid 119233-77932 for Komatsu 3D76E 3D78AE Engines
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Make / Application | Models / Engines | Fitment Notes |
|---|---|---|
| Komatsu / Yanmar Engine | 3D76E / 3D78AE | Verify engine tag and installed solenoid number. |
Product Overview
The fuel shutoff solenoid provides electrically controlled fuel on/off operation so the engine can start, run and shut down from the key or control circuit. Replace the solenoid when it no longer pulls and holds correctly, causing hard starting, no start, intermittent shutdown or failure to stop with the key.
This part is a practical repair choice when the original component is worn or failed and the machine is showing problems such as no-start caused by the solenoid not actuating, intermittent operation as the coil heats or vibrates, engine or hydraulic function will not shut off/unlock correctly. Confirming the part number and application before installation helps avoid ordering a visually similar component that uses a different configuration.
Key Features & Performance
- Restores the electrical actuation function of the original component
- Useful for repairing a sticking, open-circuit or weak solenoid
- Designed around the listed reference numbers and applications
- Match voltage, connector and mechanical configuration before installation
Technical Specifications
- Function: Fuel shutoff / engine stop
OE / Reference Numbers
- YM119233-66511
- YM119233-77932
- 119233-66511
- 119233-77932
Common Reasons for Replacement
- No-start caused by the solenoid not actuating
- Intermittent operation as the coil heats or vibrates
- Engine or hydraulic function will not shut off/unlock correctly
- Damaged connector, coil, plunger or housing
Frequently Asked Questions
How do I confirm fitment?
The YM-prefixed numbers point to Yanmar engine components used in Komatsu applications, so verify the engine identification plate as well as the machine model.
Is this an OEM part?
This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.