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SPM-HEP-4209 is the 12 volt starter motor with a 9 tooth pinion, solenoid and two bolt mounting flange. It is used on Yanmar 4TNE98 and 4TNV98 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 Yanmar 129900-77040 and Hitachi S13-404.
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 (12V, 9T) |
| Replaces | Yanmar 129900-77040 |
| Voltage | 12 V |
| Pinion | 9 teeth |
| Cross references | Hitachi S13-404 |
| Fits | Yanmar 4TNE98 and 4TNV98 engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 851140 |
| Country of Manufacture | China |
Yanmar machines
Check the part number on your old unit before ordering.
| Yanmar Part No.(SPM Part No.) | Fits |
|---|---|
| 129900-77040(SPM-HEP-4209) | Yanmar 4TNE98 and 4TNV98 engines |
| Brand | Part No. |
|---|---|
| Yanmar | 129900-77040 |
| Hitachi | S13-404 |
All of these numbers are the same part.
Slow or no cranking
With good batteries and cables, a starter that turns slowly or only clicks is worn.
Grinding on engagement
Worn pinion or flywheel teeth grind on start. Check the ring gear when fitting a new starter.
Intermittent starting
Worn brushes and solenoid contacts make starting hit and miss.
Fleet spares
A spare starter keeps a machine working while the old one is rebuilt or scrapped.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| Wagendass | USD 116.01 | 24 Oct 2026 |
| FridayParts | USD 146.90 | 24 Oct 2026 |
| Fab Heavy Parts | USD 162.79 | 24 Oct 2026 |
| eBay (6 aftermarket sellers) | USD 224.22 to 347.58 | 25 Oct 2026 |
| Amazon (David-Store) | USD 365.00 | 24 Oct 2026 |
| WDPart | USD 379.00 | 24 Oct 2026 |
| Spare Part Mart | USD 110.66 | Today |
Our price of USD 110.66 is 5% to 71% 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 Yanmar 129900-77040. It is not made by or affiliated with Yanmar; the Yanmar part number is used only to show what it replaces.
It fits Yanmar 4TNE98 and 4TNV98 engines. 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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Join Marty Mates and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that.
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