Westwood Tuff Torq Gearboxes Spare Parts
Tuff Torq hydrostatic transaxles replaced the earlier Peerless manual and hydrostatic gearboxes on Westwood tractors from the mid-1990s onwards, providing smooth foot-pedal controlled drive without the need for manual gear changes. The K46 is used in most modern Westwood tractors, while the heavier K57 and K574 are fitted to the four-wheel drive W Series models. The K46 is the world's most popular integrated hydrostatic transaxle, featuring a patented L.O.G.I.C. case design for easy installation and serviceability, and is compatible with both foot and hand control systems. We stock a wide range of genuine Tuff Torq gearbox parts for Westwood tractors and sell worldwide.
Gearbox List
Total: 8 Showing: 1 to 8
| # | Brand | Series | Machine Type | Description | |
|---|---|---|---|---|---|
| 1 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq K71 | View More |
| 2 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq K61 | View More |
| 3 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq K574C | View More |
| 4 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq K66 | View More |
| 5 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq KTM10N | View More |
| 6 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq K574J | View More |
| 7 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq KXH7N KXH10N | View More |
| 8 | Westwood | Tuff Torq Gearboxes | Gearbox | Tuff Torq K62 | View More |
| # | Machine Details |
|---|---|
| 1 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq K71 |
| 2 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq K61 |
| 3 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq K574C |
| 4 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq K66 |
| 5 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq KTM10N |
| 6 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq K574J |
| 7 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq KXH7N KXH10N |
| 8 | Machine: Westwood Tuff Torq Gearboxes Desc: Tuff Torq K62 |
Frequently Asked Questions
What are common parts to replace on Westwood Tuff Torq gearboxes?
Hydrostatic transmission fluid, internal filters, axle seals, and the charge pump are the most commonly replaced items on Tuff Torq K46 and K57 transaxles. Axle shafts and axle keys are also frequent replacements on higher-hours machines, and complete rebuild kits are available for both K46 and K57 units where the internal components have worn.
How do I service the Tuff Torq gearbox on my Westwood tractor?
Hydrostatic transmission fluid should be changed regularly as it degrades over time and loses its lubricating properties. After any fluid change or repair, the gearbox must be air-purged by raising the rear wheels and running the tractor through forward and reverse several times to remove air from the system before normal use resumes.
Which Westwood models use which Tuff Torq gearbox?
The K46 is fitted to most modern Westwood S and T Series tractors from the mid-1990s onwards, while the heavier K57 and K574 are used on four-wheel drive W Series models where greater torque capacity is needed. Confirming your tractor's model and year before ordering ensures the correct gearbox variant is supplied.
How do I find the right Tuff Torq part for my Westwood gearbox?
The Tuff Torq part number is printed on a barcode sticker on the gearbox casing, and should be recorded before ordering any internal components, rebuild kits, or complete replacement units. As several K46 variants exist with different internal specifications, using the exact number from your gearbox sticker is the most reliable way to ensure the correct part.
Can a Westwood Tuff Torq gearbox be repaired rather than replaced?
Yes — rebuild kits are available for both the K46 and K57, covering internal wear components including pistons, springs, and seals, making repair a cost-effective alternative to full replacement on machines where the external casing is undamaged. For K46 units specifically, axle kits covering both shafts, seals, and a transmission filter are also available as a single purchase.