12V Stop Solenoid SA-3991-12 for Massey Ferguson / Sisu Valmet
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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.
| Massey Ferguson MF7250, MF7252 and MF8160 tractors with compatible Sisu/Valmet 620 or 634 engine applications |
Product Overview
When a machine using Massey Ferguson / Sisu Valmet starts becoming difficult to start, will not stay running, or refuses to shut down normally with the key, the fuel-stop circuit is one of the places to check. A sticking plunger, weak coil, damaged wiring or linkage problem can create similar symptoms, so the solenoid should be replaced after the electrical supply and mechanical movement have been verified.
This replacement gives the fuel-control mechanism a fresh electrical actuator so the key or machine controls can once again move the linkage into the correct run and stop positions. It is intended as a straightforward repair when the original solenoid has been confirmed weak, sticking or electrically failed.
Key Features & Performance
- Engine stop solenoid replacement
- 12V electrical configuration as listed
Replaces / Cross-References
- SA-3991-12
- 836640253
- 836640254
What Is Included
1 engine stop solenoid.
Fitment Notes
Confirm the voltage, connector/linkage and original solenoid number. Cross-reference listings show multiple related 836640-series numbers, so the original number is the best check.
Frequently Asked Questions
Is this a genuine OEM part?
No, unless the product page specifically states otherwise. This listing is for a replacement, accessory, upgrade or repair component as described above. OE, Partslink and interchange numbers are provided for identification and fitment reference.
How should I verify fitment before ordering?
Confirm the voltage, connector/linkage and original solenoid number. Cross-reference listings show multiple related 836640-series numbers, so the original number is the best check.
Part Summary
Keywords: 12V Stop Solenoid SA-3991-12 Massey Ferguson / Sisu Valmet, SA-3991-12, 836640253, 836640254