Alternator for John Deere Marine 6081AFM75 & 6125AFM75 Engines 2004-2007 - 12V 90A
Alternator for John Deere Marine 6081AFM75 & 6125AFM75 Engines 2004-2007 - 12V 90A
SKU:400-52096
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Alternator for John Deere 8.1L & 12.5L Marine Engines
12-Volt, 90 Amp, Internal Regulator, Clockwise, 8-Groove Serpentine Pulley
This 12-volt, 90 amp alternator is built for John Deere marine diesel engines built between 2004 and 2007 - the 8.1-litre 6081AFM75 and the 12.5-litre 6125AFM75 and 6125SFM75. It is a direct replacement for John Deere RE500227 and the Denso 102211-1180 unit.
The unit runs an internal regulator with an 8-groove serpentine pulley and clockwise rotation, matching the original equipment layout so it drops straight in. Every unit is quality checked before dispatch, and our technical team is on hand if you need help confirming fitment.
Key Features
- 12-volt, 90 amp output to OEM specification
- Internal regulator (IR) design
- 8-groove serpentine pulley, clockwise rotation
- Direct replacement for John Deere RE500227 and Denso 102211-1180
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Part Number | 400-52096 |
| Unit Type | Alternator |
| Voltage | 12 V |
| Output | 90 A |
| Regulator | Internal (IR) |
| Rotation | Clockwise (CW) |
| Pulley | 8-groove serpentine (S8) |
| Lester Number | 12474 |
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 6081AFM75 Marine Engine, Codes 3102 and 3115 (8.1L, 496 cu in, 6-cyl) | 2004-2007 |
| John Deere 6125AFM75 Marine Engine, Code 3110 (12.5L, 763 cu in, 6-cyl) | 2004-2007 |
| John Deere 6125SFM75 Marine Engine, Code 3110 (12.5L, 766 cu in, 6-cyl) | 2004-2007 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| RE500227 | John Deere |
| 102211-1180 | Denso |
| AND0435, ND102211-1180 | Arrowhead |
| 12474N | WAI / EMS |
| 90-29-5413, 70-29-12474 | Wilson |
| 12474 | Lester |
Frequently Asked Questions
Will this alternator fit without modification?
Yes, on the marine engines listed above it is a direct, bolt-in replacement built to OEM specification - no modification is required.
How do I check this is the right part?
Compare the number on your original unit against the cross reference table - John Deere RE500227 or Denso 102211-1180.
What output does this unit give?
12 volts at 90 amps, with an internal regulator, clockwise rotation and an 8-groove serpentine pulley.
How do I know my current alternator has failed?
Common signs include a charge warning light, dimming or flickering lights, a weak or dead battery despite recent charging, and slow engine cranking.
Can I confirm fitment before ordering?
Yes, our technical team can help confirm compatibility against your original part - just get in touch before you order.
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