This alternator is a direct replacement for the original unit fitted to a wide range of Bobcat skid steer loaders and compact excavators built between 1993 and 2013. It supersedes Bobcat part number 6669618 and Denso 101211-1100, and is manufactured to OEM specifications for fit, form and function, so it installs in place of the original part without modification.
It replaces the standard 12-volt, 40-amp alternator fitted across Bobcat's Kubota diesel-powered skid steer and mini excavator range, including models fitted with D722, D750, D1005, D1703 and related diesel engines. The unit uses an internal regulator at the 12:00 clock position with an internal fan, and a B+ output terminal in M6x1.00 thread.
Key Features
- 12-volt, 40-amp output
- Internal regulator (IR) at 12:00, internal fan (IF)
- B+ terminal, M6x1.00, negative polarity
- Direct OEM fit for Bobcat skid steer loaders and excavators
- Covers model years 1993-2013
- 12-month warranty as standard
Technical Specs
| Specification |
Detail |
| Voltage |
12V |
| Amperage |
40A |
| Regulator Type |
IR (internal), clock 12:00 |
| Fan Type |
IF (internal) |
| Terminal |
B+, M6x1.00 |
| Polarity |
Negative |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model |
Years |
| Bobcat 319, 320, 320C, 321, 322, 323, 324, 325 Compact Excavators |
1993-2013 |
| Bobcat 328, 328C, 329 Compact Excavators |
1993-2013 |
| Bobcat 418, 425, 428 Compact Excavators |
1993-2013 |
| Bobcat 453, 453C, 463, 553, 553F Skid Steer Loaders |
1993-2013 |
| Bobcat E08, E10, E14, E16 Mini Excavators |
1993-2013 |
| Bobcat MT50, MT52, MT55 Mini Track Loaders |
1993-2013 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 6669618, 6669618EF, 6669618REM |
Bobcat |
| 021080-0810, 101211-1100 |
Denso |
| ND101211-1100 |
Arrowhead |
| 12337 |
Lester |
| LRA02008 |
Lucas Electrical |
| 400-52186 |
J&N Electrical Products |
Frequently Asked Questions
Will this fit my Bobcat skid steer without modification?
Yes, provided your model falls within the 1993-2013 coverage range shown above, this unit is built to OEM specifications and bolts into the standard mounting points.
What's included?
The alternator unit only.
How can I tell my alternator has failed?
Signs include a charge warning light, a battery that will not hold charge, dimming lights, or unusual noise from the unit.
How do I confirm exact fitment for my Bobcat model?
Check the number on your original alternator against the table above - Bobcat 6669618 or Denso 101211-1100 - and confirm your machine's Kubota diesel engine type (for example D722, D750 or D1703), as several Bobcat models across this range share the same base engine.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
