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Axle Differential — fits 6 New Holland models — MT40122879
Fits: New Holland BOOMER-45, New Holland BOOMER-50, New Holland BOOMER-55, New Holland BOOMER-40, New Holland BOOMER-41 + 1 more
About this item
- Genuine New Holland OEM part — direct factory replacement
- Fits: New Holland BOOMER-45, New Holland BOOMER-50, New Holland BOOMER-55, New Holland BOOMER-40, New Holland BOOMER-41 + 1 more
- Carries the load and locates the wheels
- New Holland
- MT40122879
- AG
- GEARS & SHAFTS
- AXLE DIFFERENTIAL
- all 8 specs
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
Product description
New Holland MT40122879 is the front axle differential assembly for Boomer tractors. In the Differential Assy, Front diagram of the Front Axle System chapter it is callout 1, quantity 1 in that diagram, and the OEM note says it includes callouts 2 to 8 and 10 and applies to production up to 05-Feb-2018; the pinion MT40347937 listed in it is for production from 06-Feb-2018. In the FRONT AXLE DIFFERENTIAL, BOOMER 41, 47 diagram (25.102.AD[02]) it is callout 1, quantity 1 in that diagram, including callouts 2 to 10. Other diagrams of the same name give a production cutoff of 01-Jan-2018.
The catalog lists it for the New Holland Boomer 40, 41, 45, 47, 50 and 55. It replaces the earlier number MT20100630.
Specifications
Technical specifications
- Part type
- Axle Differential
- Fits
- 6 New Holland models
- Brand
- New Holland
- Part number (MPN)
- MT40122879
- SKU
- CT-NHL-MT40122879
- Category
- GEARS & SHAFTS
- Part Number
- MT40122879
- Division
- AG
Compatibility
Will it fit your machine?
Type your model to confirm it fits — or browse the full compatibility list below.
| Model | Series |
|---|---|
| BOOMER-40 | BOOMER |
| BOOMER-41 | BOOMER |
| BOOMER-45 | BOOMER |
| BOOMER-47 | BOOMER |
| BOOMER-50 | BOOMER |
| BOOMER-55 | BOOMER |
Not sure it fits? Browse the full parts catalogue to check every listed part.
Parts diagrams
Find it in the exploded diagram
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 · Front Axle System | #1 | 19 | View |
![]() | New Holland BOOMER-41 · Front Axle System | #1 | 24 | View |
![]() | New Holland BOOMER-55 · Front Axle System | #1 | 21 | View |
![]() | New Holland BOOMER-45 · Front Axle System | #1 | 21 | View |




