Tuff Torq 7A646084322 K46CR Hydrostatic Transaxle

The K46 family includes multiple configurations, so the suffix and complete number carry the fitment. This genuine Tuff Torq hydrostatic transaxle is part 7A646084322, model K46CR.

It is intended to replace the same identified configuration. Axles, brake hardware, controls, fan and pulley arrangements, and mounting details can differ across K46 variants.

Why this matters

• Complete transaxle replacement can simplify a repair when internal wear is extensive.
• The K46CR identity narrows the application beyond a generic K46 search.
• Exact matching helps avoid discovering linkage or mounting differences during installation.

Verified identification

Official Tuff Torq resources

• Tuff Torq OEM parts portal — enter the exact unit identification to locate the applicable parts diagram and service parts.
• Tuff Torq informational downloads — manufacturer reference material by equipment category.

Document note: These are lookup resources, not universal installation instructions. Follow the equipment manufacturer’s model- and serial-specific service procedure.

Ordering, lead time, returns, and warranty

• Match the full identification number on the original component and verify the equipment model and serial number.
• Many HydroDrives-supplied units are built to order and may require approximately 10–15 business days before shipment.
• Approved returns may incur a 20% restocking fee; original and return shipping charges are nonrefundable.
• Build-to-order, installed, used, damaged, or fluid-filled components may be ineligible for return.
• Applicable manufacturer warranty coverage may require authorized-service-center installation. Retain service records.

Orders may ship directly from a U.S. partner warehouse. Availability and timing are subject to supplier confirmation.