Fits:

13" standard plastic track (year 2000 and newer track design)
18" super plastic track (year 2000 and newer track design)


If your track has become loose, remove a full link and add a 1/2 link to tighten the track to the proper 2" - 3" sag recommendation under the middle tires.  Always measure you sag with the correct tire inflation and all tires up off the ground on one side.  You can download proper track set-up procedures by selecting the accessory track kit you have and scrolling down the page to the PDF instructions file download.

These 1/2 links will not fit on any plastic track 13" or 18" prior to model year 2000 as the teeth do not line up correctly.  You can file them to fit, but you do so at your own risk and they are not returnable once modified.