John Deere 27D Rubber Tracks & Parts

John Deere 27D tracks and undercarriage, sized 300x52.5Nx80 (300 mm wide × 52.5 mm pitch × 80 links). Made for digging, trenching, backfill and tight-quarters work. Free freight, 24-month warranty.

What the numbers mean on a John Deere 27D

• 300x52.5Nx80 — 300 mm tread width (about 12"), 52.5 mm pitch, 80 links, narrow guide lugs

Width is the tread face, pitch is the distance between drive lugs, and links is the count around the loop. All three have to match — a track one link off will not tension correctly no matter how close the width is.

Tread choice for the John Deere 27D

Size gets the track on the machine; tread decides how it works and how long it lasts. What we stock for this one:

• Directional — digging, trenching and slope work. The standard excavator tread

John Deere 27D at a glance

• Operating weight — 6,393 lb
• Engine — 26 hp

Undercarriage parts for the John Deere 27D

Rollers, idlers and sprockets wear on the same clock as the track. Fitting new rubber over a hooked sprocket or a seized roller is the fastest way to lose the new track — check these while the tracks are off:

• Drive sprocket — 1032265
• Front idler — 9269094
• Bottom roller — 4340535
• Carrier roller — 4718355, 9237948

Where more than one part number is listed, John Deere changed that component across serial ranges. Match the number stamped on the part you are replacing, or send us the machine serial and we will pick it.

How these wear

Excavator undercarriages load one side hard on slew and travel, so link cracking usually shows up before the tread wears out. Replace in pairs where you can: a new track running against a stretched one loads the drive unevenly and you will feel it in the steering.

Same track, other machines

Track size follows undercarriage geometry, not brand, so 300x52.5Nx80 shows up on machines from several makers. If you run any of these alongside the John Deere 27D, it is the same belt:

• Bobcat 231
• Bobcat 329
• Bobcat 331
• Bobcat 331E
• Bobcat 334
• Bobcat 425
• Bobcat 428
• Bobcat E26
• Bobcat E27
• Bobcat E27Z

Not sure which you are running? Read the size off the inside of the old track, or call (850) 816-7898 and we will pull it off the machine record. The Track Finder works by make and model too.

More John Deere undercarriage

• John Deere 15
• John Deere 17D
• John Deere 17G
• John Deere 17P
• John Deere 17ZTS
• John Deere 26D
• All John Deere tracks & parts