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Kubota SA-3786-12 is a fuel shutoff solenoid for the Kubota Diesel 21HP Engine 91-05 Grasshopper 721D2 Mower 12V. This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Fuel Shutoff Solenoid |
| Replaces | Kubota SA-3786-12 |
| Fits | Kubota Diesel 21HP Engine 91-05 Grasshopper 721D2 Mower 12V |
| Condition | New, aftermarket |
| Stat. HS-Code | 850590 |
Kubota machines
Check the part number on your old unit before ordering.
| Kubota Part No.(SPM Part No.) | Fits |
|---|---|
| SA-3786-12(SPM-HEP-2369) | Kubota Diesel 21HP Engine 91-05 Grasshopper 721D2 Mower 12V |
Engine will not start or will not stop
A failed fuel shutoff solenoid holds the fuel off (no start) or will not cut it (no stop). Check power at the plug first.
Engine cuts out
A weak pull-in or hold coil lets the solenoid drop out under vibration and the engine stalls.
Sticking plunger
Dirt and corrosion stop the plunger moving freely. Replacing the solenoid is quicker than freeing an old one.
Fleet spares
A spare solenoid on the van turns a no-start into a quick fix on site.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 25.00 | 4 Oct 2026 |
| Buy Machinery Parts | USD 35.99 | 6 Oct 2026 |
| Holdwell | USD 45.60 | 6 Oct 2026 |
| YEM Parts | USD 52.13 | 6 Oct 2026 |
| MyMroMarts | USD 89.99 | 6 Oct 2026 |
| Spare Part Mart | USD 20.00 | Today |
Our price of USD 20.00 is 20% to 78% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
No. It is an aftermarket part made to fit in place of Kubota SA-3786-12. It is not made by or affiliated with Kubota; the Kubota part number is used only to show what it replaces.
It fits Kubota Diesel 21HP Engine 91-05 Grasshopper 721D2 Mower 12V. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It has the same mounting and electrical connector as the original. Check the plug and terminals match your old part, and test it before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your postcode.
In USD for the quantity selected. The exact cost is confirmed at checkout.
