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Bobcat 6670727 is the 12 volt, 2.2 kW gear reduction starter motor with a 10 tooth pinion. It is used on Bobcat compact excavators. 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 | Starter Motor |
| Replaces | Bobcat 6670727 |
| Voltage | 12 V |
| Output | 2.2 kW |
| Pinion | 10 teeth |
| Fits | Bobcat 325, 328, 329, 331, 334, 335, 337 and 341 excavators, E25, E26, E32, E35, E42, E45, E50 and E55 excavators and the S100 loader |
| Condition | New, aftermarket |
| Stat. HS-Code | 851140 |
| Country of Manufacture | China |
Bobcat machines
Check the part number on your old unit before ordering.
| Bobcat Part No.(SPM Part No.) | Fits |
|---|---|
| 6670727(SPM-HEP-4172) | Bobcat 325, 328, 329, 331, 334, 335, 337 and 341 excavators, E25, E26, E32, E35, E42, E45, E50 and E55 excavators and the S100 loader |
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 |
|---|---|---|
| eBay, aftermarket seller | USD 138.86 | 25 Oct 2026 |
| Amazon (HOLDWELL-US) | USD 139.05 | 24 Oct 2026 |
| FridayParts | USD 145.71 | 24 Oct 2026 |
| All Skid Steers | USD 149.95 | 24 Oct 2026 |
| Tractor Parts ASAP | USD 161.59 | 24 Oct 2026 |
| Spare Part Mart | USD 116.57 | Today |
Our price of USD 116.57 is 16% to 28% 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 Bobcat 6670727. It is not made by or affiliated with Bobcat; the Bobcat part number is used only to show what it replaces.
It fits Bobcat 325, 328, 329, 331, 334, 335, 337 and 341 excavators, E25, E26, E32, E35, E42, E45, E50 and E55 excavators and the S100 loader. 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.
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Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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