This alternator is built to OEM specifications as a direct fit-and-function replacement for the unit fitted to John Deere 240, 250 and 260 skid steer loaders built between 1999 and 2004, including the Series II machines with the 2.9-litre CD3029DF and CD4039DF diesel engines. It bolts onto the original mounting points using the factory single-groove pulley.
It is a 12-volt, 55-amp unit with an internal regulator (IR) and external fan (EF), running on a 1-V pulley with an 85mm outside diameter, matching the original John Deere fitment. It replaces John Deere 113542, RE506197 and SE501828 directly.
Key Features
- 12-volt, 55-amp output
- Internal regulator (IR), external fan (EF)
- 1-V pulley, 85mm OD
- Direct OEM fit for John Deere 240, 250 and 260 skid steer loaders
- Replaces John Deere 113542, RE506197 and SE501828
- 12-month warranty as standard
Technical Specs
| Specification |
Detail |
| Voltage |
12V |
| Amperage |
55A |
| Rotation |
Clockwise (CW) |
| Regulator |
Internal (IR) |
| Fan Type |
External (EF) |
| Pulley |
1-V, 85mm OD |
| Engines Covered |
John Deere 2.9L CD3029DF, CD4039DF |
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 |
| John Deere 240 & 240 Series II Skid Steer Loader |
1999-2004 |
| John Deere 250 & 250 Series II Skid Steer Loader |
1999-2004 |
| John Deere 260 & 260 Series II Skid Steer Loader |
1999-2004 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 113542, RE506197, SE501828 |
John Deere |
| 443-113-515-765 |
Magneton |
| 12366 |
Lester |
| 400-42008 |
Arrowhead / J&N |
Frequently Asked Questions
Will this alternator fit without modification?
Yes, it is a direct OEM-spec replacement matching the original mounting, pulley and output of the John Deere unit.
Does it fit the Series II machines?
Yes. It covers the 240, 250 and 260 loaders and their Series II versions built from 1999 to 2004.
What's included?
One new alternator unit, ready to fit.
What pulley does this unit use?
A single V-groove pulley with an 85mm outside diameter.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
