Fits: New Holland BOOMER-40, New Holland BOOMER-45, New Holland BOOMER-50, New Holland BOOMER-55, New Holland BOOMER-37 + 2 more
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Overview
Fits the New Holland BOOMER-55 and BOOMER-37 — this key locks the hub to the shaft. Cataloged for 7 New Holland models.
Specifications
Compatibility
Type your model to confirm it fits — or browse the full compatibility list below.
| Model | Series |
|---|---|
| BOOMER-55 | BOOMER |
| BOOMER-37 | BOOMER |
| BOOMER-40 | BOOMER |
| BOOMER-41 | BOOMER |
| BOOMER-45 | BOOMER |
| BOOMER-47 | BOOMER |
| BOOMER-50 | BOOMER |
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 BOOMER-40 · Platform, Cab, Bodywork and Decals | #23 | 35 | View |
 | New Holland BOOMER-37 · Platform, Cab, Bodywork and Decals | #23 | 35 | View |
 | New Holland BOOMER-55 · Service & Maintenance | #90 | 0 | View |
 | New Holland BOOMER-55 · Platform, Cab, Bodywork and Decals | #23 | 35 | View |
Part guide
New Holland MT40253488 is the key Clinton Tractor supplies for this application. It is listed as fitting 7 New Holland models.
Fits: New Holland BOOMER-40, New Holland BOOMER-45, New Holland BOOMER-50, New Holland BOOMER-55, New Holland BOOMER-37 + 2 more. Commonly ordered for the BOOMER-55, BOOMER-37, BOOMER-40. If your machine isn't listed, check the serial number before ordering.
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Machine specifications
Verified equipment data for the models in the compatibility list — match yours before ordering.
| Specification | New Holland BOOMER-55 | New Holland BOOMER-37 | New Holland BOOMER-40 | New Holland BOOMER-41 | New Holland BOOMER-45 | New Holland BOOMER-47 |
|---|---|---|---|---|---|---|
| Weight | 3,424–4,194 lbs | 2,804–2,870 lbs | 3,549 lbs | 3,424–3,490 lbs | 3,424–4,194 lbs | 3,424–3,490 lbs |
| Rear PTO | independent | independent | independent | independent | independent | independent |
| 3-pt hitch | I · 2,116 lbs lift | I · 1,345 lbs lift | I | I · 2,116 lbs lift | I · 2,116 lbs lift | I · 2,116 lbs lift |
| Fuel capacity | — | 10.5 gal | — | 10.5 gal | — | 10.5 gal |
| Rear tires | 13.6-24 | 11.2x24 | — | 13.6-24 | 13.6-24 | 13.6-24 |
Questions
Quick answers to what operators ask most before they order this part.
It fits 7 New Holland models, including the BOOMER-55, BOOMER-37, BOOMER-40 and 4 more.
Yes — MT40253488 is a genuine New Holland OEM key, supplied new by Clinton Tractor.
Match your model and serial number against the fitment list on this page — it covers the New Holland BOOMER-55 — or send your serial to Clinton Tractor and we'll confirm MT40253488.
Reviews
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