Alternator for John Deere Combine, Crawler & Loader - 12V 90A IR/EF
Alternator for John Deere Combine, Crawler & Loader - 12V 90A IR/EF
SKU:400-16169
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Alternator for John Deere Combine, Crawler & Loader - 12V 90A IR/EF
90 amp replacement alternator for John Deere combines, crawlers, loaders and windrowers
This alternator is built for John Deere equipment fitted with a 12-volt internal regulator/external fan (IR/EF) charging system, supplied as a direct replacement for the original equipment unit. It delivers a 90 amp output, giving a strong charging margin for equipment running additional electrical accessories such as lighting, cab climate systems or auxiliary hydraulics.
It is manufactured to OEM specifications for output, mounting and pulley fitment, so it installs in place of the original unit without modification. Coverage spans John Deere combines, cotton pickers, crawlers, loaders and windrowers, and the unit replaces John Deere AH11221, AH112211, TY6653 and TY6748 as well as the Leece-Neville 110-242, 110-537 and 110-570 series. A chaff screen is fitted as standard, and the charging terminal is a 1/4 inch B+ stud on a negative-earth system.
Key Features
- 12-volt charging system
- 90 amp rated output
- Internal Regulator / External Fan (IR/EF) design
- Chaff screen fitted as standard
- 1/4 inch B+ output terminal, negative earth
- Direct OEM fit and finish
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Amperage | 90A |
| Regulator / Fan Type | Internal Regulator / External Fan (IR/EF) |
| Output Terminal | B+, 1/4 inch |
| Polarity | Negative earth |
| Chaff Screen | Included |
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 Combine 4400, 6600, 6620, 7700, 8820, 9400-9650 | 1970-1982 |
| John Deere Crawler 450G, 455G, 550G, 555G, 650G | 1993 onwards |
| John Deere Loader 344E, 444E, 544E, 624E, 644E | Within the 1970-1993 coverage span |
| John Deere Cotton Picker 7445, 9930, 9950 | Within the 1970-1993 coverage span |
| John Deere Windrower 3430, 3830, 3930 | Within the 1970-1993 coverage span |
| John Deere Tractor 450G | 1993 onwards |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| AH11221, AH112211, TY6653, TY6748 | John Deere |
| 110-242, 110-537, 110-570, 8MR2030T, 8MR2030TC | Leece-Neville |
| 8045 | Lester |
| 400-16169, 400-16033BFS, AMO0014 | Arrowhead |
| 400-16033 | J&N Electrical |
Frequently Asked Questions
Will this fit my John Deere equipment without modification?
Yes, this is a direct OEM-spec replacement - no modification is needed as long as your original unit is also a 12-volt IR/EF 90 amp alternator.
How do I confirm the correct fitment?
Compare the number on your existing alternator with the cross reference table above. John Deere AH11221, AH112211, TY6653 and TY6748, and Leece-Neville 110-242, 110-537 and 110-570 all supersede to this unit.
Does it come with the chaff screen?
Yes, the chaff screen is fitted as standard, which matters on combines and cotton pickers working in dusty crop conditions.
What is included?
One new 12-volt, 90 amp IR/EF alternator, ready to fit.
Is this a genuine John Deere part?
No, this is an aftermarket replacement built to OEM specifications for fit and output, not a genuine John Deere branded part.
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