Tuff Torq K46CR Hydrostatic Transmission with ETC Limited Slip Differential

The Tuff Torq K46CR is a hydrostatic transaxle fitted with an ETC Limited Slip Differential system, designed for Husqvarna ride-on mowers. This integrated hydrostatic transmission combines a hydraulic pump and motor within a compact, durable housing to deliver smooth, responsive power.

The addition of the ETC Limited Slip Differential improves traction on uneven or slippery ground, ensuring consistent performance on New Zealand’s varied terrain. With its die-cast aluminium housing, hardened internal gears, and internal wet-disk brakes, the K46CR is built for long service life while providing enhanced operator safety and control.

Pre-filled with oil for convenient installation, this OEM transmission is a direct-fit replacement for a wide range of Husqvarna ride-on mowers.

Key Features & Benefits:

• Integrated Hydrostatic Transaxle (IHT) design with pump and motor in one unit

• ETC Limited Slip Differential System for improved traction on slopes and uneven ground

• Die-cast aluminium housing with hardened steel gears for strength and durability

• Internal wet-disk braking system for reliable stopping power

• Supplied pre-filled with oil for quick installation

• Direct OEM replacement for Husqvarna models

Specifications (K46CR Model):

• OEM Part Numbers: 7A646084320, 7A646084321, 7A646084322

• Transmission Type: Hydrostatic drive with ETC Limited Slip Differential

• Housing: Die-cast aluminium

• Brake Type: Internal wet-disk system

• Pre-filled with oil – ready for installation

• Designed for rear-engine Husqvarna ride-on tractors

Fits Husqvarna Models:

• LTH2142D

• LTH2142DR

• YTH2242TDF

• YTH2242TDRF

• YTH2246TDR

• YTH2648TDF

• YTH2648TDRF

Applications:
Direct OEM replacement transmission for Husqvarna ride-on mowers. Ideal for restoring lost performance, improving traction, and ensuring reliable operation in demanding mowing conditions.

OEM & Cross References:

• OEM Part Nos.: 7A646084320, 7A646084321, 7A646084322

• Replaces earlier K46 models where a Limited Slip Differential upgrade is required