Undercarriage

TopDog parts offers a variety of parts for nearly all undercarriage needs!

Please give us a call!

(480) 569-3406

Right parts... Right price... Right now!

Top Carrier Rollers

Top Carrier Roller will help your machine reduce the unit pressure and improve road passability. Carrier Rollers also support the track to prevent the track from sagging and will help reduce the vibration of the track during movement.

Bottom Rollers

Bottom Rollers help carry the machine while it is either digging or traveling.

Front & Rear Idlers

Idlers are metal wheels that are at the front and back of the undercarriage. They help guide the tracks and are responsible for tensioning the track around the undercarriage.

Sprockets

Sprockets are the main driving force in moving a track. When the sprocket rotates it pulls on metal planges that are located in the center of the track. This driving force is what will rotate the track around the rest of the undercarriage.