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SPM-HEP-4431 is the 24 volt starter motor with solenoid, three bolt 89 mm flange and 10 tooth pinion. It is used on Cummins ISF3.8 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 Cummins 5268413 and Cummins 5319202.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Starter Motor |
| Replaces | Cummins 5268413 |
| Voltage | 24 V |
| Pinion teeth | 10 |
| Rotation | Clockwise |
| Cross references | Cummins 5319202 |
| Fits | Cummins ISF3.8, ISB4.5 and B4.5 engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 851140 |
| Country of Manufacture | China |
Cummins machines
Check the part number on your old unit before ordering.
| Cummins Part No.(SPM Part No.) | Fits |
|---|---|
| 5268413(SPM-HEP-4431) | Cummins ISF3.8, ISB4.5 and B4.5 engines |
| 5319202(SPM-HEP-4431) | Cummins ISF3.8, ISB4.5 and B4.5 engines |
What it does
The solenoid throws the pinion into the flywheel ring gear and the motor turns the engine over until it fires.
Where it is used
Made for the Cummins ISF3.8, ISB4.5 and B4.5 engines. The full list is in the tables above.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| Spareto | USD 183.37 | 29 Oct 2026 |
| Buy Machinery Parts | USD 196.99 | 2 Nov 2026 |
| FridayParts | USD 206.84 | 29 Oct 2026 |
| Fab Heavy Parts | USD 234.19 | 2 Nov 2026 |
| eBay (3 aftermarket sellers) | USD 271.53 to 485.90 | 29 Oct 2026 |
| Spare Part Mart | USD 122.98 | Today |
Our price of USD 122.98 is 33% to 75% 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.
Yes, it was made for the Cummins ISF3.8, and 2 more listed under compatible equipment. Check the old starter motor is marked 5268413 or one of the cross references, because makers change parts between serial ranges.
On the Cummins ISF3.8, typically 5,000 to 10,000 hours, depending on how often the machine is started and how well the batteries are kept.
Clicking with a good battery, slow cranking, grinding as it engages, or the starter staying engaged after the engine fires.
Disconnect the battery earth before removing the old unit. The main cable is live at full battery current.
Yes. Look at the flywheel teeth through the starter opening. Chewed teeth will damage the new pinion.
No. It is an aftermarket starter motor made to replace the Cummins 5268413. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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