Alternator for John Deere 3430: heavy-duty replacement for OEM AH11221 (12V 90A). Built for reliable field replacement performance.
Fits These Models
John Deere
- 3430 (1986-1992 — 4 Cyl. 3.91L 3883cc 237cid)
- 344E (1988-1995 — 4045D John Deere Diesel)
- 3830 (1986-1992 — 4 Cyl. 3.91L 3883cc 237cid)
- 3930 (1985-1992 — Various)
- 4400 Utility Tractor (1970-1982 — 329 Diesel)
- 4420 (1981-1984 — 6 Cyl. 5.39L 5393cc 329cid)
- 444E (1988-1995 — 4045T, 4.5L John Deere Diesel)
- 450G (1993-2007 — 4045T, 4.5L John Deere Diesel)
- 455G (1993-2007 — 4045T, 4.5L John Deere Diesel)
- 544E (1988-1992 — 6059T John Deere Diesel)
- 550G (1993-2007 — 4045T, 4.5L John Deere Diesel)
- 555G (1993-2007 — 4045T, 4.5L John Deere Diesel)
- 624E (1988-1992 — 6068T John Deere Diesel)
- 644E (1988-1992 — 6466T John Deere Diesel)
- 650G (1993-2007 — 4045T John Deere Diesel)
- 6600 Farm Tractor (1973-1977 — 329 Diesel)
- 6600 Farm Tractor (1978-1982 — 404 Diesel)
- 6602 (1971-1982 — 404 Diesel)
- 6602 (1973-1974 — 362 Gas)
- 6620 (1979-1988 — 466 Diesel)
See the full fitment table above for all 36 compatible applications.
OEM Cross-Reference Numbers
Replaces the following OEM part numbers: AH11221, AH112211, SE501374, TY6653, TY6748, 10-242, 8MR2030T, 8MR2030TC, 8MR2030TS, 110-242, 110-537, 110-570.
Please verify the OEM reference number and equipment fitment before ordering.








