Countax Tuff Torq Gearboxes Spare Parts
Tuff Torq hydrostatic transaxles have been fitted to Countax garden tractors since the mid-1990s, replacing the earlier Peerless manual gearboxes as the preferred transmission system across the range. The K46CM is the most widely fitted unit, used across the C Series MK3, C Series MK4, Williams FW1, and X Series tractors, as well as most modern Westwood S and T Series models, making it one of the most commonly serviced transmissions on Countax machines. The K574C is fitted to four-wheel drive variants where greater torque capacity is needed. We stock genuine Tuff Torq K46 and K574 gearbox parts, rebuild kits, and complete units for Countax tractors and sell worldwide.
Gearbox List
Total: 10 Showing: 1 to 10
| # | Brand | Series | Machine Type | Description | Year | |
|---|---|---|---|---|---|---|
| 1 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq KTM10N - from 2005 | 2005 | View More |
| 2 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq KXH7N KXH10N | -- | View More |
| 3 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K62 | -- | View More |
| 4 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K574J | -- | View More |
| 5 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K46 | -- | View More |
| 6 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K55 | -- | View More |
| 7 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K574C | -- | View More |
| 8 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K61 | -- | View More |
| 9 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K66 | -- | View More |
| 10 | Countax | Tuff Torq Gearboxes | Gearbox | Tuff Torq K71 | -- | View More |
| # | Machine Details |
|---|---|
| 1 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq KTM10N - from 2005 Year: 2005 |
| 2 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq KXH7N KXH10N |
| 3 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K62 |
| 4 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K574J |
| 5 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K46 |
| 6 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K55 |
| 7 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K574C |
| 8 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K61 |
| 9 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K66 |
| 10 | Machine: Countax Tuff Torq Gearboxes Desc: Tuff Torq K71 |
Frequently Asked Questions
What are the most common parts to replace on Countax Tuff Torq gearboxes?
Hydrostatic transmission fluid, internal filters, axle seals, and the charge pump are the most commonly replaced items on K46 and K574 transaxles. Axle shafts and axle keys are also frequent replacements on higher-hours machines, and complete rebuild kits are available for both units where internal components have worn beyond serviceable limits.
How do I service the Tuff Torq gearbox on my Countax tractor?
Hydrostatic transmission fluid degrades over time and loses its lubricating properties, so should be changed periodically using the correct oil grade specified on the gearbox barcode sticker. 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 hydraulic circuit before normal use resumes.
Which Countax models use which Tuff Torq gearbox?
The K46CM is fitted to most modern Countax C and B Series tractors from the mid-1990s onwards, while the heavier K574 is used on four-wheel drive B Series models where greater torque capacity is required. Earlier C Series machines built before 2000 used a K55 unit, so confirming your tractor's model and year before ordering ensures the correct gearbox variant is supplied.
How do I find the right Tuff Torq gearbox part for my Countax tractor?
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. Because several K46 variants exist with different internal specifications, using the exact number from your gearbox sticker rather than the tractor model number is the most reliable way to ensure the correct part.
Can a Countax Tuff Torq gearbox be repaired rather than replaced?
Yes — rebuild kits are available for both the K46 and K574, 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. Axle repair kits covering both shafts, seals, and keys are also available as a combined purchase for owners dealing with axle seal failures or worn shaft components.