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Alternator for John Deere 240-280 Skid Steer Loaders 12V 55A Magneton

Alternator for John Deere 240-280 Skid Steer Loaders 12V 55A Magneton

SKU:400-42001

Regular price £185.80 GBP
Regular price Sale price £185.80 GBP
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Free shipping over £150. Terms apply

Alternator for John Deere 240-280 Skid Steer Loaders

12-Volt 55 Amp IR/EF - Magneton Pattern

This alternator is built to OEM specifications as a direct fit-and-function replacement for the Magneton unit fitted to John Deere 240, 250, 260, 270 and 280 skid steer loaders, including the Series II machines. It bolts onto the original mounting points using the factory 8-groove pulley.

It is a 12-volt, 55-amp unit with an internal regulator (IR) and external fan (EF), running on an 8-groove pulley with a 60mm outside diameter. It is negative earth, with an M6 x 1.00 B+ output stud and M5 x 0.8 D+ and R terminals, and mounts via two 18mm unthreaded holes and one M8 x 1.25 threaded hole.

Key Features

  • 12-volt, 55-amp output
  • Magneton pattern replacement
  • Internal regulator (IR), external fan (EF)
  • 8-groove pulley, 60mm OD
  • B+ M6 x 1.00, D+ and R terminals M5 x 0.8
  • Negative earth
  • 12-month warranty as standard

Technical Specs

Specification Detail
Voltage 12V
Amperage 55A
Rotation Clockwise (CW)
Regulator Internal (IR)
Fan Type External (EF)
Pulley S8, 8-groove, 60mm OD
Terminals B+ M6 x 1.00, D+ M5 x 0.8, R M5 x 0.8
Mounting Two 18mm unthreaded holes, one M8 x 1.25 threaded hole
Polarity Negative earth
Manufacturer Reference Magneton / Lester 12130

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 (3029D engine) Not specified - confirm against your OEM part number
John Deere 250 & 250 Series II (3029T engine) Not specified - confirm against your OEM part number
John Deere 260 & 260 Series II (3029T engine) Not specified - confirm against your OEM part number
John Deere 270 & 270 Series II (4045D engine) 1999-2004
John Deere 280 & 280 Series II (4045T engine) 1999-2004

OEM Part Number Cross Reference

Aftermarket replacement. OEM part numbers are listed for reference only.

Part Number Manufacturer / Brand
RE501634, RE505196, RE506196, RE506322, SE501823, SE501835 John Deere
443-113-515-241, 443-113-516-241, 9515241, 9-515-241, 9516241 Magneton
LRA02116 Lucas Electric
12130 Lester

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.

What's included?

One new alternator unit, ready to fit.

How do I confirm this is the right unit for my loader?

Check the John Deere number on your original alternator - RE501634, RE505196, RE506196, RE506322, SE501823 or SE501835 - or match the Lester 12130 reference.

How do I know my old alternator has failed?

Common signs are a battery that won't hold charge, a dashboard charge light, or dimming lights at idle.

What pulley does this unit use?

An 8-groove pulley with a 60mm outside diameter, matching the original John Deere fitment.

Dispatched from the UK · 12-month warranty · Fitment support from our technical team
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Shipping calculated at checkout. Free shipping over £150. Terms apply