Tuff Torq K46F/G Transmission 7A646024051 - Fits Castelgarden & Stiga

The Tuff Torq K46F/G is a hydrostatic transaxle designed for use in Castelgarden and Stiga ride-on mowers. Combining the hydraulic pump and motor into a compact, integrated unit, this transmission provides smooth, efficient power delivery with low maintenance requirements.

Engineered with a die-cast aluminium housing, hardened gears, and an internal wet-disk brake system, the K46F/G is built to withstand demanding mowing conditions while ensuring long service life. Pre-filled with oil for quick installation, this OEM transmission is a direct-fit replacement for a wide range of Castelgarden and Stiga ride-on tractors.

Key Features & Benefits:

• Integrated Hydrostatic Transaxle (IHT) with pump and motor combined

• Smooth and responsive control for mowing and transport

• Durable die-cast aluminium case with hardened steel gears

• Internal wet-disk braking system for reliable safety and stopping power

• Delivered pre-filled with oil for hassle-free installation

• Direct OEM replacement for Castelgarden and Stiga ride-on mowers

Specifications (K46F/G Model):

• OEM Part Number: 7A646024051

• Transmission Type: Hydrostatic drive

• Housing: Aluminium die-cast

• Braking: Internal wet-disk system

• Supplied with oil – ready to install

• Designed for Castelgarden and Stiga ride-on tractors

Fits Stiga Models:

• Estate 6102HW

• Estate 6122HW

• Estate 7102HWS

• Estate 7122HWS

• Estate Baron

• Estate Grand Royal

• Estate Pro 20

• Estate Pro 22

• Estate Pro 25

Fits Castelgarden Models:

• PTC220HD

• PTX122HD

• PTX160HD

• PTX200HD

• PTX220HD

• TC102

• TCP102

• TCX102

Applications:
OEM replacement hydrostatic transmission for Castelgarden and Stiga ride-on mowers. Ideal for restoring lost performance and ensuring smooth operation in both residential and professional applications.

OEM & Cross References:

• OEM Part No.: 7A646024051

• Replaces earlier K46F/G units fitted to Castelgarden and Stiga tractors