Alternator for Kubota Tractors, Loaders & Thomas Skid Steers - 12V 45 Amp
Alternator for Kubota Tractors, Loaders & Thomas Skid Steers - 12V 45 Amp
SKU:400-52132
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Alternator for Kubota Tractors, Loaders & Thomas Skid Steers
12-Volt, 45 Amp Nippondenso IR/IF Replacement Unit
This alternator is a direct replacement for the original 12-volt unit fitted to Kubota L Series compact tractors, Kubota R Series wheel loaders and Thomas Equipment skid steers running Kubota V1903, V2203 and F2503/F2803 diesel engines. It is manufactured to OEM specifications for fit, form and function, so it installs in place of the original part without modification.
The unit produces 45 amps with clockwise rotation, an internal regulator (IR) and internal fan (IF) in the Nippondenso IR/IF design. It uses a single-groove (V1) pulley measuring 69mm OD with a 15mm ID, designed to run on a 13mm belt, and mounts using a 10mm unthreaded bottom mounting hole.
Key Features
- 12-volt, 45-amp output
- Clockwise (CW) rotation
- Internal regulator (IR) at 12:00, internal fan (IF)
- Single-groove V1 pulley, 69mm OD x 15mm ID
- Nippondenso IR/IF design, B+ terminal M6-1.0
- Fits Kubota L/R Series and Thomas Equipment skid steers
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Amperage | 45A |
| Rotation | CW (clockwise) |
| Pulley Type | V1 (single groove), 69mm OD / 15mm ID, solid |
| Belt Width | 13mm |
| Fan Type | IF (internal) |
| Regulator Type | IR (internal), clock 12:00 |
| Design | IR/IF (Nippondenso) |
| Terminal | B+, M6-1.0, negative polarity |
| Mounting | 10mm unthreaded bottom hole |
| Weight | Approx. 3.7 kg |
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 |
|---|---|
| Kubota L4350DT / L4350HDT / L4350MDT Tractor (V2203DI, 47.5 hp) | 1991-1997 |
| Kubota L4850HDT Tractor (F2503DI, 53 hp) | 1991-1997 |
| Kubota L5450DT / L5450HDT Tractor (F2803DI, 54.5 hp) | 1991-1997 |
| Kubota R510 Loader (V2203-BDW / V2203DI, 50 hp) | 1985-2006 |
| Kubota R520BU-1A Loader (V2203, 49 hp) | 1995-2003 |
| Kubota F2803 & V1702 Engine Applications | 1986-2007 |
| Thomas Equipment T133S Skid Steer (Kubota V1903B) | 1995-1998 |
| Thomas Equipment T173, T183, T203 Skid Steer (Kubota V2203B) | 1989-1999 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 17356-64010, 17356-64011, 17356-64012 | Kubota |
| 100211-6800, 100211-6801 | Denso |
| AND0211, ND100211-6801 | Arrowhead |
| 12200 | Lester |
| 12200N | WAI |
| 113200 | Cargo |
| 50915 | Remy Light Duty |
| 400-52132 | J&N Electrical Products |
Frequently Asked Questions
Will this alternator fit my Kubota machine without modification?
Yes, this unit is manufactured to OEM specifications and bolts directly into the standard Kubota mounting points used on the models listed above.
What's included?
The alternator unit only, ready to install in place of your original part.
How do I know my alternator has failed?
Typical signs are a charge warning light, a battery that will not hold charge, dimming electrics, or an unusual noise from the unit.
How do I confirm this is the right unit for my machine?
Check the number stamped on your original alternator against the cross-reference table above - most commonly Kubota 17356-64010 or Denso 100211-6800.
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