The Volvo EC25 runs a 300x52.5x78 track: 300 mm across the tread, 52.5 mm between links, 78 links around. Cut for digging, trenching, backfill and tight-quarters work and shipped free to the lower 48.
What the numbers mean on a Volvo EC25
- 300x52.5x78 — 300 mm tread width (about 12"), 52.5 mm pitch, 78 links
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 Volvo EC25
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
Volvo EC25 at a glance
- Operating weight — 6,152 lb
- Engine — 26 hp
Undercarriage parts for the Volvo EC25
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:
- Carrier roller — RD411-22900, 7257873
Where more than one part number is listed, Volvo 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 300x52.5x78 shows up on machines from several makers. If you run any of these alongside the Volvo EC25, it is the same belt:
- 25-NX
- CAT 302.5
- CAT 302.5C
- CAT MM25T
- Case 28
- Case CK28
- Case CX26C
- Case CX28
- Ditch Witch MX202
- Gehl 283Z
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.
