28/10/2026
The Bobcat E35 is listed with one track size, 300 x 52.5 x 84N: 300 mm (11.8 in) wide, with a 52.5 mm pitch and 84 links. This guide covers how to confirm the fit, the signs of wear and the E35 undercarriage parts to check at a track change.
Looking for Bobcat E35 tracks? Our catalog lists the Bobcat E35 with one track size. This guide gives the Bobcat E35 track size, how to measure and confirm the fit, the signs that tracks are worn, and the undercarriage parts worth checking while the tracks are off.
The short answer
Our catalog lists one track size for the Bobcat E35. There is one listed variant, so the size below is the one to check against your machine.
| Track size | Width | Pitch | Links |
|---|---|---|---|
| 300 x 52.5 x 84N | 300 mm (11.8 in) | 52.5 mm | 84 |
Source: Excavator Parts Direct catalog, October 2026. Sold as a single track (price is per track).
Read the size as width x pitch x links. A 300 x 52.5 x 84N track is 300 mm wide, has 52.5 mm between link centers and has 84 links. The E35 sits in the Bobcat E range of excavators, where the number in the model code gives the nominal size class.
If the size is still readable on your old track, use it. If it has worn away, take three measurements:
Width
Measure across the track from edge to edge. A Bobcat E35 track should measure 300 mm (11.8 in).
Pitch
Measure from the center of one link to the center of the next. The E35 track has a 52.5 mm pitch.
Links
Count the drive lugs around the inside of the track. The E35 track has 84.
If your numbers match the table, you have the right size. Our guide to measuring rubber tracks shows each step with diagrams.
Confirm the model
Check the model plate on the machine. Several E range excavators sit close to the E35 in size, and each has its own listing. If the plate shows a different model, order for that model, or contact us with the machine details and serial number and we will check.
Match the size
Compare the size on the old track, or your measurements, with the table above. If the width is not 300 mm, the pitch is not 52.5 mm or the link count is not 84, stop and check before you order.
Check the tread
Our catalog lists one variant for the E35, and the listing does not name a tread pattern. If you want a particular tread, send us a photo of your current track and we will confirm what we can supply.
Look underneath first
Before the new tracks go on, inspect the sprockets, idlers and rollers. New tracks on a worn undercarriage wear out sooner.
Our advice
A size that is checked, not guessed, is the quickest way back to work. If anything does not match, talk to the team before you order, so you maximize machine uptime and avoid a return.
We recommend these checks on any tracked machine.
Walk around the machine and look at the full length of each track. Deep cuts, missing lugs and steel cords showing through the rubber all mean the track is near the end of its life.
If the track keeps going slack after you adjust it, do not assume the track is the cause. A track adjuster with failed piston seals cannot hold tension, and worn sprockets can add to the problem. Here is how to check rubber track tension. The correct tension figure for the E35 is in your machine’s operator’s manual.
When sprocket teeth wear sharp, they stop holding the track cleanly. The track can slip or jump through the sprocket, and the shock load travels into the final drive. If you see or hear this happen, stop and inspect the sprockets before you carry on.
If a set of tracks wears out well before the last set did, look at the parts underneath before you fit new ones. Material packing between sprocket teeth, rollers and the track also speeds up wear, so keep the undercarriage clean. Our guide to spotting a worn sprocket shows what to look for, and these five tips to extend rubber track life cover other common causes.
Spinning the tracks, unnecessary reversing, high travel speed when it is not needed and always turning in the same direction all add wear. They wear the tracks and the sprockets that drive them.
With the tracks off, the whole undercarriage is in plain view. That makes a track change the best time to inspect it. Here is what our catalog shows for the E35:
| Part | Listed online | What to check |
|---|---|---|
| Top roller | Yes: 2 per machine, 2.5 kg (5.5 lb) each | Turns freely, no oil leaks |
| Drive sprocket | Not listed online: ask the team | Teeth worn sharp, track slipping or jumping |
| Idler | Not listed online: ask the team | Worn running surface, damaged flanges, oil leaks |
| Bottom roller | Not listed online: ask the team | Flat spots, worn flanges, oil leaks, rollers that do not turn |
Source: Excavator Parts Direct catalog, October 2026. Kilogram weight converted from the catalog’s pound figure.
Top rollers, also called carrier rollers, support the upper run of the track between the sprocket and the idler. Our catalog lists 2 E35 top rollers per machine. Check that each one turns freely and is not leaking oil. Our guide to bottom rollers and carrier rollers explains the difference.
The sprocket bolts to the final drive and its teeth engage the track to drive the machine. We do not currently list an E35 sprocket online. Sprocket wear is hard to judge by eye, so compare yours with an unused sprocket of the same type. Wear builds faster in reverse and at higher travel speeds. If yours is worn, send us the serial number and we will check what we can supply.
Idlers guide the track around the end of the track frame and work with the track adjuster to hold tension. We do not currently list an E35 idler online. Check for worn running surfaces, damaged flanges and oil leaks. With an idler off, it is also the easiest time to check or replace the track adjuster.
Bottom rollers run along the underside of the track frame and carry the machine’s weight on the track. We do not currently list an E35 bottom roller online. Look for flat spots, worn flanges, oil leaks and rollers that no longer turn. We advise changing bottom rollers as a set, because a single new roller sits proud of the worn ones and wears faster. Our guide to excavator undercarriage parts covers each part in more detail.
Our advice
If the sprockets, idlers or rollers show wear, replace them with the tracks. It is one job and one round of downtime, and the new tracks start on a sound undercarriage. For parts we do not list online, speak to the team with your serial number.
These are the E35 parts in our catalog. Both are on the Bobcat E35 parts page.
More Bobcat parts
Our catalog lists the Bobcat E35 track as 300 x 52.5 x 84N. It is 300 mm (11.8 in) wide, has a 52.5 mm pitch and has 84 links.
It is the track size, written width x pitch x number of links. The track is 300 mm wide, has a 52.5 mm pitch and has 84 links.
Yes. We sell Bobcat E35 rubber tracks individually, and the price shown is for one track.
Use the tension figure in your machine’s operator’s manual. A track that is too loose can come off, and a track that is too tight wears faster. If the track will not hold tension, check the track adjuster.
Our catalog lists 2 top rollers per machine for the Bobcat E35.
Not online at the moment. We list the E35 rubber track and top roller. For other E35 undercarriage parts, contact us with the serial number and we will check what we can supply.
Common signs are deep cuts or exposed steel cords, a track that will not hold tension, a track that slips or jumps on the sprocket, and tracks that wear out much faster than the last set. Check the sprockets, idlers, rollers and track adjuster at the same time, because worn parts underneath shorten the life of new tracks.
Related guides
Need tracks or undercarriage parts for your Bobcat E35?
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