Upgrade your John Deere 27C and 27ZTS series rubber tracks to the premium aftermarket rubber tracks from Rubbertrax and increase the lifespan and performance of your undercarriage. We now supply the complete line of 27C and 27ZTS series undercarriage parts including the drive sprocket (2043505), the top carrier roller (4392416), idler (9132562), and the bottom track rollers down the center of the undercarriage (9237937). We are also stocking optional rubber track tread patterns and track width options. The 300 x 52.5 x 78N is the standard width rubber track size for the John Deere 27C. We do stock a ten-inch wide version if you frequently have to go through narrow gates or have a narrow trailer.