The Solenoid SA3725-12 is a 12 V fuel shut-off/stop solenoid used in diesel engines and generator sets to electrically control fuel flow to the engine. When energized, it allows the engine to run; when power is cut, it cuts fuel supply and stops the engine safely — protecting equipment and preventing run-on.
Where It Is Used
The SA3725-12 solenoid is commonly installed in:
-
Mitsubishi diesel engines such as L2E, L3E, S3L, S4L series
-
Diesel generators (e.g., SDMO and similar gensets fitted with compatible Mitsubishi engines)
-
Construction and agricultural machinery powered by the above engines
-
Light industrial equipment requiring controlled engine shutdown
This makes it ideal for generators, pumps, excavators, tractors and similar heavy-duty machinery.
Key Functions
-
🔌 Engine stop control: Cuts off fuel flow when the solenoid is de-energized to stop the engine safely.
-
⚡ 12 V operation: Designed for standard 12 V DC electrical systems found on small to mid-sized diesel engines.
-
🛠️ Reliable engine protection: Prevents engine run-on, reduces stress on internal components, and enhances overall safety.
-
🔩 Direct OEM replacement: Fits as a replacement for factory parts like SA-3725-12 and its equivalents, allowing straightforward maintenance without modifications.
Why It Matters
Installing a quality stop solenoid like SA3725-12 helps ensure dependable engine shutdown, reduces wear on fuel systems, and supports trouble-free operation of generators and diesel machinery.
📍 Available at: www.rixingcompany.com — Your source for reliable generator and engine spare parts in Kenya.
