One New Aftermarket Replacement Magneto Point Set for International Harvester (IH) / Farmall Tractors
This aftermarket replacement magneto breaker point set fits the International Harvester (IH) J4 and H4 magnetos and can also be adapted for use with F4 magnetos with modification. It is a critical ignition component that controls spark timing in the magneto ignition system used across a wide range of classic IH and Farmall letter-series and numbered tractors.
Specifications
- Point gap (H4 magneto): 0.013″
- Fits J4 and H4 magnetos; compatible with F4 magneto with modification
Compatible Models
International Harvester (IH) / Farmall Letter Series: A, AV, B, BN, C, H, HV, M, MD, MDV, MTA, MV, O4, O6, ODS6, OS4, OS6, Super A, Super A-1, Super AV, Super AV-1, Super C, Super H, Super HV, Super M, Super MD, Super MDV, Super MDV-TA, Super MTA, Super MV, Super MVTA, Super W4, Super W6, Super W6TA, Super WD6, Super WD6TA, Super WD9, Super WDR9, Super W9, W4, W6, W9, WD6, WD9, WDR9, WR9, WR9S
International Harvester (IH) / Farmall Numbered Series: 100, 130, 200, 230, 300, 350, 400, 450, 600, 650
International Harvester Industrial / Utility: I4, I6, I9, ID6, ID9, T6, T9, TD6, TD9, TD18, U2, U2A, U4, U6, W400, W450
Note: This part fits tractors equipped with the IH H4 or J4 magneto ignition system. It does not fit Delco or Prestolite distributors or magnetos. Verify your magneto type before ordering.
Replaces Part Number(s):
21388DBX, 21388DBX-1, 21388DBX-6, 21409DB, 353171R1, 353171R91, 47431DA-1, 47431DB, 47431DB-6, 71455C91
New aftermarket replacement part – not remanufactured, not used.






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