12V Throttle / Shutdown Solenoid for Hatz Woodward Synchro-Start – SA-4984-12
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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.
| Application | Compatible Models / Details |
|---|---|
| Engine / Control Applications | Compatible Hatz and industrial diesel equipment using Woodward or Synchro-Start 1751-series SA-4984-12 configuration |
| Equipment | Also encountered on selected generator, aerial-lift and industrial power units using this actuator |
Product Overview
This style of linear solenoid is used to pull an engine throttle or fuel-control lever when energized. In equipment that depends on the solenoid for run/stop or speed control, a weak pull coil, damaged hold circuit or sticky plunger can prevent normal starting or cause the lever to drop out.
Matching listings identify the 1751-series unit by SA-4984-12 and 1751-12E2U1B1 and list Hatz, Synchro-Start and Woodward applications. Since the 1751 family is sold in multiple voltage, stroke and linkage configurations, the stamped number is more important than appearance.
Key Features & Performance
- 12V linear throttle/shutdown actuator
- Cross-references SA-4984-12 and 1751-12E2U1B1
- Used in Hatz / Synchro-Start / Woodward industrial engine-control applications
- Pull-and-hold style function for mechanical throttle or fuel linkage
Reference Numbers & Specifications
- Reference number(s): SA-4984-12, 1751-12E2U1B1, 175112E2U1B1
- Voltage: 12V
- Part type: throttle / shutdown linear solenoid
- Control type: mechanical linkage actuator
Before You Order
- Match the full stamped model number, voltage and plunger/linkage dimensions before ordering.
- Check that the throttle or fuel lever moves freely; a binding linkage can overheat or damage a replacement solenoid.
Frequently Asked Questions
Why is the full 1751 number important?
Woodward/Synchro-Start 1751 solenoids come in multiple electrical and mechanical configurations.
What can cause a new solenoid to release immediately?
Low voltage, incorrect wiring or a failed hold circuit can allow the pull function to engage but not remain energized.
Compatibility can vary by engine, serial number and equipment configuration. Match the original part number and physical configuration whenever possible before ordering.