21B-34M8766 (2021) Troy-Bilt Tiller - Overview

This nut is a manufacturer-approved replacement part for various lawn and garden equipment. It is sold individually, not as part of a kit or assembly. Also referred to as a Lock Nut, it is resistant to loosening when threaded on a bolt. It has a variety of applications and is used in multiple locations on most models. Please refer to your...Read more owners manual to determine the exact location. While made of durable metal, the ends can round off from improper use of a wrench or socket. Depending on the location, this part may also become worn through regular use of your machine. It should be replaced when visibly cracked, worn or damaged. To complete this repair, you will need a wrench or socket, and a torque wrench. Ensure you torque the bolt according to the manufacturer recommendations. Customers rate this repair as Easy.

This OEM Top Locknut measures 5/16x18, is made of metal, and it isused to secure parts in place and prevent backing out from vibration. Replacing this part varies in difficulty depending on the part it is securing and the equipment in question, but it is generally an easy job according to our customers. Installation requires a wrench or socket.

It is made of metal and is sold individually. The inner tine attaches to the outer tine. A set of pliers might be helpful during the installation of this part. This item might break over time and will need replacing. It is an authentic part from MTD and Yard Machines for use in lawn mowers.