Fits: New Holland BOOMER-40, New Holland BOOMER-45, New Holland BOOMER-50, New Holland BOOMER-55, New Holland BOOMER-35 + 4 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-35 and BOOMER-40 — this thermostat regulates the coolant temperature. Fits 9 New Holland models across 2 series.
Specifications
Compatibility
Type your model to confirm it fits — or browse the full compatibility list below.
| Model | Series |
|---|---|
| BOOMER-35 | BOOMER |
| BOOMER-40 | BOOMER |
| BOOMER-45 | BOOMER |
| BOOMER-50 | BOOMER |
| BOOMER-55 | BOOMER |
| WORKMASTER-35 | WORKMASTER |
| WORKMASTER-40 | WORKMASTER |
| WORKMASTER-40C | WORKMASTER |
| WORKMASTER-35C | WORKMASTER |
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 · Service & Maintenance | #11 | 0 | View |
 | New Holland BOOMER-40 · General & Pictorial Index | #42 | 0 | View |
 | New Holland BOOMER-35 · Engine | #15 | 25 | View |
 | New Holland BOOMER-40 · Engine | #18 | 29 | View |
 | New Holland BOOMER-40 · Engine | #18 | 30 | View |
 | New Holland BOOMER-35 · Service & Maintenance | #10 | 0 | View |
 | New Holland BOOMER-55 · Service & Maintenance | #11 | 0 | View |
 | New Holland WORKMASTER-35 · Engine | #20 | 36 | View |
 | New Holland WORKMASTER-35 · General & Pictorial Index | #15 | 0 | View |
 | New Holland BOOMER-45 · Engine | #15 | 25 | View |
 | New Holland BOOMER-35 · Engine | #15 | 25 | View |
 | New Holland BOOMER-55 · Engine | #15 | 25 | View |
 | New Holland WORKMASTER-35C · Engine | #15 | 25 | View |
 | New Holland WORKMASTER-40C · Service & Maintenance | #29 | 0 | View |
 | New Holland BOOMER-55 · Engine | #15 | 25 | View |
 | New Holland WORKMASTER-35 · General & Pictorial Index | #15 | 0 | View |
Part guide
New Holland MT40007663 is the thermostat Clinton Tractor supplies for this application. It is listed as fitting 9 New Holland models.
Fits: New Holland BOOMER-40, New Holland BOOMER-45, New Holland BOOMER-50, New Holland BOOMER-55, New Holland BOOMER-35 + 4 more. Commonly ordered for the BOOMER-35, BOOMER-40, BOOMER-45. 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-35 | New Holland BOOMER-40 | New Holland BOOMER-45 | New Holland BOOMER-50 | New Holland BOOMER-55 | New Holland WORKMASTER-35 |
|---|---|---|---|---|---|---|
| Weight | 2,913 lbs | 3,549 lbs | 3,424–4,194 lbs | 3,549 lbs | 3,424–4,194 lbs | 2,900 lbs |
| Rear PTO | independent | independent | independent | independent | independent | independent |
| 3-pt hitch | I | I | I · 2,116 lbs lift | I | I · 2,116 lbs lift | I · 1,433 lbs lift |
| Fuel capacity | — | — | — | — | — | 7.4 gal |
| Rear tires | — | — | 13.6-24 | — | 13.6-24 | — |
Questions
Quick answers to what operators ask most before they order this part.
It fits 9 New Holland models, including the BOOMER-35, BOOMER-40, BOOMER-45 and 6 more.
Yes — MT40007663 is a genuine New Holland OEM thermostat, supplied new by Clinton Tractor.
Match your model and serial number against the fitment list on this page — it covers the New Holland BOOMER-35 — or send your serial to Clinton Tractor and we'll confirm MT40007663.
Reviews
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