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The TORO 139-6643 is a right-hand key-rocking assembly designed as a direct OEM replacement part for Toro lawn and garden equipment. Key-rocking assemblies serve as mechanical linkage or pivot components within operator control systems, translating operator input into controlled movement or engagement of equipment functions. This part is sourced directly from Toro and is intended for installation by qualified service technicians or experienced equipment operators performing component-level repairs on Toro outdoor power equipment.
This component is suited for use in residential and light commercial lawn and garden equipment applications where the original right-hand key-rocking part has worn, broken, or failed. It restores proper control function to the affected unit. Technicians servicing Toro mowers, tractors, or related outdoor power equipment will find this a straightforward OEM-grade replacement for the corresponding right-hand position.
Designed as an OEM replacement key-rocking component for Toro lawn and garden equipment requiring the right-hand assembly. Refer to your equipment model's parts diagram to confirm fitment before ordering.
Installation should be performed by a qualified small-equipment technician or experienced service professional. Disengage all blades, shut off the engine, and remove the ignition key before accessing any control linkage components. Consult the applicable Toro service manual for disassembly sequence and reassembly guidance specific to the equipment model being serviced.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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