What size tracks do Komatsu machines use?

Komatsu Track Size Chart

Komatsu machines in our data use 4 rubber track sizes across 5 models. The most common primary size is 320x86x52, on 2 models (CK20-1, CK25-1).

Track sizes read width (mm) x pitch (mm) x number of links. All three must match your machine. Find your model in the first table; the second shows which Komatsu models share each size.

Track size by model

Model	Type	Primary size	Width	Pitch	Links	Alternate sizes	Second source
CK16 · legacy	Compact track loader	`320x86x48`	320 mm / 12.6 in	86 mm	48	—	not yet checked
CK20-1	Compact track loader	`320x86x52`	320 mm / 12.6 in	86 mm	52	—	matches
CK25-1	Compact track loader	`320x86x52`	320 mm / 12.6 in	86 mm	52	—	matches
CK30-1	Compact track loader	`320x86x56`	320 mm / 12.6 in	86 mm	56	—	not yet checked
CK35-1	Compact track loader	`320x86x56`	320 mm / 12.6 in	86 mm	56	`450x86x56`	not yet checked

"Second source": whether an independent second seller or catalog lists the same size. "Disagrees" rows are shown, not hidden; check the machine page and your current track before ordering.

Komatsu track sizes and the models that share them

Size	Width	Primary on	Alternate on	Other brands
`320x86x52`	320 mm / 12.6 in	CK20-1, CK25-1	—	22
`320x86x56`	320 mm / 12.6 in	CK30-1, CK35-1	—	4
`320x86x48`	320 mm / 12.6 in	CK16	—	1
`450x86x56`	450 mm / 17.7 in	—	CK35-1	25

"Other brands" counts machines from other manufacturers that list the same width, pitch and link count; the size page lists them.

Before you order

Fitment can vary by serial number. Some sellers write a variant letter inside the size (320x86Bx49) and list those tracks separately; the second table groups them under the base size, so check the exact listing on the model's page. Measure your current tracks and check your operator's manual. How track sizes are written →

More Komatsu: Komatsu track and tire sizes by model · Komatsu solid skid steer tires · all track sizes.

Where this comes from: each size is from the published aftermarket or manufacturer source linked on the model's page (our machine-model dataset), with second-source checks recorded per model.