Alternator for Massey Ferguson MF1030 MF1035 MF1040 MF1045 - 12V 35A
Alternator for Massey Ferguson MF1030 MF1035 MF1040 MF1045 - 12V 35A
SKU:400-44040
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Alternator for Massey Ferguson Compact Tractors
MF1030, MF1035, MF1040, MF1045, MF205, MF210, MF220 - 12V 35A IR/EF
This alternator is built to OEM specifications as a direct fit and function replacement for the Hitachi LR135-series unit fitted to Massey Ferguson compact tractors, as well as Gehl and Isuzu industrial equipment using the same charging system. It is an IR/EF unit - internally regulated with an external fan - rated at 12 volts and 35 amps.
The unit rotates clockwise (CW) and uses a single-groove (V1) pulley, matching the original factory configuration so it fits straight into place without modification. It replaces Massey Ferguson 3282-883-M91 and Hitachi LR135-58, LR135-58B and LR135-126 directly.
Key Features
- 12-volt, 35-amp output
- IR/EF design - internally regulated, externally cooled
- Clockwise (CW) rotation
- V1 (single-groove) pulley
- Replaces Massey Ferguson 3282-883-M91 and Hitachi LR135-58
- Direct OEM fit and finish
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Amperage | 35 Amp |
| Rotation | CW (Clockwise) |
| Regulator | IR (Internally Regulated) |
| Fan Type | EF (External Fan) |
| Pulley Type | V1 (Single Groove) |
| Unit Type | Hitachi-type alternator |
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 |
|---|---|
| Massey Ferguson MF1030 | 1984-1991 |
| Massey Ferguson MF1035 | 1987-1991 |
| Massey Ferguson MF1040, MF1045 | All years |
| Massey Ferguson MF205, MF210, MF220 | All years |
| Gehl and Isuzu industrial equipment | All years |
| Allis Chalmers / Deutz-Allis applications | Not specified by supplier - confirm against OEM part number |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| LR135-58, LR135-58B, LR135-126 | Hitachi |
| 3282-883-M91 | Massey Ferguson |
| 128171-77200 | Yanmar |
| 5001810100 | Isuzu |
| 112270 | Cargo |
| 12111, 12129 | Lester |
| 400-44040 | Arrowhead / J&N |
Frequently Asked Questions
Will this alternator fit my tractor without modification?
Yes. This is a direct OEM-fit replacement built to the same specification (12V, 35A, IR/EF, CW rotation, V1 pulley) as the original unit, so no modification is required.
What's included with this part?
You receive the alternator unit only. Mounting hardware, brackets and pulleys are not included unless already fitted to the original unit you are replacing.
How can I tell my old alternator has failed?
Common signs include a warning light staying on, dimming or flickering lights, a dead or slowly draining battery, unusual whining noises, or the engine stalling when electrical accessories are switched on.
What does IR/EF mean?
IR/EF stands for Internally Regulated, Externally Fan-cooled - the voltage regulator is built into the alternator body and cooling air is drawn in by an external fan rather than through the housing.
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