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SPM-HEP-4393 is the 24 volt pull type shutoff solenoid with threaded body, spring loaded plunger and screw terminals. It is used on Caterpillar 3116 and 3126 engines. 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.
It replaces Caterpillar 155-4652, Caterpillar 125-5772 and Caterpillar 8C-3663.
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 24V |
| Replaces | Caterpillar 155-4652 |
| Voltage | 24 V |
| Length | 183 mm |
| Body diameter | 46 mm |
| Cross references | Caterpillar 125-5772, Caterpillar 8C-3663 |
| Fits | Caterpillar 3114, 3116 and 3126 engines, including 320B excavators, 525B and 535B skidders and CB-634C and CP-533C compactors |
| Condition | New, aftermarket |
| Stat. HS-Code | 850590 |
| Country of Manufacture | China |
Caterpillar machines
Check the part number on your old unit before ordering.
| Caterpillar Part No.(SPM Part No.) | Fits |
|---|---|
| 155-4652(SPM-HEP-4393) | Caterpillar 3114, 3116 and 3126 engines, including 320B excavators, 525B and 535B skidders and CB-634C and CP-533C compactors |
| 125-5772(SPM-HEP-4393) | Caterpillar 3114, 3116 and 3126 engines, including 320B excavators, 525B and 535B skidders and CB-634C and CP-533C compactors |
| 8C-3663(SPM-HEP-4393) | Caterpillar 3114, 3116 and 3126 engines, including 320B excavators, 525B and 535B skidders and CB-634C and CP-533C compactors |
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 |
|---|---|---|
| FridayParts | USD 72.98 | 25 Oct 2026 |
| eBay (3 aftermarket sellers) | USD 80.50 to 369.99 | 25 Oct 2026 |
| Mad Hornets | USD 86.78 | 25 Oct 2026 |
| Darupsun | USD 118.22 | 25 Oct 2026 |
| DuraForce | USD 122.99 | 25 Oct 2026 |
| Fab Heavy Parts | USD 136.48 | 25 Oct 2026 |
| Spare Part Mart | USD 58.38 | Today |
Our price of USD 58.38 is 20% to 84% 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 Caterpillar 155-4652. It is not made by or affiliated with Caterpillar; the Caterpillar part number is used only to show what it replaces.
It fits Caterpillar 3114, 3116 and 3126 engines, including 320B excavators, 525B and 535B skidders and CB-634C and CP-533C compactors. 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 ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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