Top 50 sellerFits: New Holland 640, New Holland 644, New Holland 648, New Holland 678, New Holland BR740 + 3 more
usually ships same day
usually ships same day
Overview
Belt Flat for the New Holland 640 and 644 — transfers drive power between pulleys. Fits 8 New Holland models across 2 series.
Specifications
Compatibility
Type your model to confirm it fits — or browse the full compatibility list below.
| Model | Series |
|---|---|
| 640 | 600 SERIES |
| 644 | 600 SERIES |
| 648 | 600 SERIES |
| 678 | 600 SERIES |
| BR740 | VARIABLE CHAMBER |
| BR740A | VARIABLE CHAMBER |
| BR770 | VARIABLE CHAMBER |
| BR770A | VARIABLE CHAMBER |
Not sure it fits? Search by serial number for an exact, machine-specific match.
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 678 · Complete Machine | #1 | 113 | View |
 | New Holland 648 · General | #1 | 0 | View |
 | New Holland 640 · Complete Machine | #1 | 26 | View |
 | New Holland 644 · Complete Machine | #1 | 95 | View |
 | New Holland BR740 · Bale Chamber | #1 | 9 | View |
 | New Holland 640 · Complete Machine | #1 | 90 | View |
 | New Holland 644 · Complete Machine | #1 | 0 | View |
 | New Holland BR770 · Bale Chamber | #1 | 12 | View |
 | New Holland BR740A · Bale Chamber | #1 | 9 | View |
 | New Holland 678 · Complete Machine | #1 | 0 | View |
 | New Holland BR770A · Bale Chamber | #1 | 12 | View |
 | New Holland 648 · Bale Ejector | #1 | 96 | View |
Part guide
New Holland 86635463 is the belt flat Clinton Tractor supplies for this application. It is listed as fitting 8 New Holland models.
Fits: New Holland 640, New Holland 644, New Holland 648, New Holland 678, New Holland BR740 + 3 more. Commonly ordered for the 640, 644, 648. If your machine isn't listed, check the serial number before ordering.
Machine specifications
Verified equipment data for the models in the compatibility list — match yours before ordering.
| Specification | New Holland 6401954 - 1957 |
|---|---|
| Engine | Ford 2.2L 4-cyl gasoline |
| Transmission | 4-speed unsynchronized gear |
| Drive | 2WD |
| Weight | 3,031 lbs |
| Rear PTO | transmission (non-live) |
| 3-pt hitch | I · 1,250 lbs lift |
| Fuel capacity | 11 gal |
| Rear tires | 11-28 |
Watch
Install, fitment & service walkthroughs for this part.
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19:40
5:33
6:03Questions
Quick answers to what operators ask most before they order this part.
It fits 8 New Holland models, including the 640, 644, 648 and 5 more.
Yes — 86635463 is a genuine New Holland OEM belt flat, supplied new by Clinton Tractor.
Match your model and serial number against the fitment list on this page — it covers the New Holland 640 — or send your serial to Clinton Tractor and we'll confirm 86635463.
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