No factory photo on file yet — showing the parts diagram. Real OEM photography drops in when available.
Fits: New Holland 450SFIA, New Holland 450SFIE (EU), New Holland 420FIA, New Holland 440FIA, New Holland 470FIA
usually ships in 3-5 business days
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
usually ships in 3-5 business days
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Overview
Built for the New Holland 420FIA and 440FIA, this knife set performs the cutting work. Cataloged for 5 New Holland models.
Specifications
Compatibility
Type your model to confirm it fits — or browse the full compatibility list below.
| Model | Series |
|---|---|
| 420FIA | ROW INDEPENDENT |
| 440FIA | ROW INDEPENDENT |
| 470FIA | ROW INDEPENDENT |
| 450SFIA | ROW INDEPENDENT |
| 450SFIE | ROW INDEPENDENT |
Not sure it fits? Browse the full parts catalogue to check every listed part.
Parts diagrams
Every diagram this part appears in — jump straight to its callout, or browse the whole assembly. Each diagram opens with every part numbered, and each callout links back to its own part page.
| Assembly | Machine | Callout | Parts | View |
|---|---|---|---|---|
 | New Holland 420FIA · Header | #20 | 52 | View |
 | New Holland 440FIA · Header | #20 | 52 | View |
 | New Holland 470FIA · Header | #20 | 52 | View |
 | New Holland 450SFIA · Service & Maintenance | #8 | 41 | View |
 | New Holland 420FIA · General | #8 | 41 | View |
 | New Holland 420FIA · Header | #3 | 32 | View |
Part guide
New Holland 84123950 is the knife set Clinton Tractor supplies for this application. It is listed as fitting 5 New Holland models.
Fits: New Holland 450SFIA, New Holland 450SFIE (EU), New Holland 420FIA, New Holland 440FIA, New Holland 470FIA. Commonly ordered for the 420FIA, 440FIA, 470FIA. If your machine isn't listed, check the serial number before ordering.
usually ships in 3-5 business days
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
usually ships in 3-5 business days
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Questions
Quick answers to what operators ask most before they order this part.
It fits 5 New Holland models, including the 420FIA, 440FIA, 470FIA and 2 more.
Yes — 84123950 is a genuine New Holland OEM knife set, supplied new by Clinton Tractor.
Match your model and serial number against the fitment list on this page — it covers the New Holland 420FIA — or send your serial to Clinton Tractor and we'll confirm 84123950.
Reviews
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