TrackFitment

IHI Track Size Chart

IHI machines in our data use 11 rubber track sizes across 26 models. The most common primary size is 300x52.5x90, on 6 models (35NX, 35NX-2, 35V-4, 35V-5, 35VX and more).

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 IHI models share each size.

Track size by model

ModelTypePrimary sizeWidthPitchLinksAlternate sizesSecond source
4J · legacy Mini excavator 180x72x33 180 mm / 7.1 in 72 mm 33 — not yet checked
15NX Mini excavator 230x48x70 230 mm / 9.1 in 48 mm 70 — disagrees
17VXE · legacy Mini excavator 230x48x70 230 mm / 9.1 in 48 mm 70 — matches
18J · legacy Mini excavator 230x48x70 230 mm / 9.1 in 48 mm 70 — matches
18N · legacy Mini excavator 230x48x70 230 mm / 9.1 in 48 mm 70 — matches
25NX Mini excavator 300x52.5x78 300 mm / 11.8 in 52.5 mm 78 — not yet checked
25V-4 · legacy Mini excavator 300x52.5x78 300 mm / 11.8 in 52.5 mm 78 — disagrees
30NX Mini excavator 300x52.5x84 300 mm / 11.8 in 52.5 mm 84 — matches
35N · legacy Mini excavator 300x52.5x84 300 mm / 11.8 in 52.5 mm 84 — matches
35NX Mini excavator 300x52.5x90 300 mm / 11.8 in 52.5 mm 90 — disagrees
35NX-2 Mini excavator 300x52.5x90 300 mm / 11.8 in 52.5 mm 90 — not yet checked
35V-4 · legacy Mini excavator 300x52.5x90 300 mm / 11.8 in 52.5 mm 90 — not yet checked
35V-5 · legacy Mini excavator 300x52.5x90 300 mm / 11.8 in 52.5 mm 90 — not yet checked
35VX · legacy Mini excavator 300x52.5x90 300 mm / 11.8 in 52.5 mm 90 — matches
35VX-3 · legacy Mini excavator 300x52.5x90 300 mm / 11.8 in 52.5 mm 90 — not yet checked
40G · legacy Mini excavator 400x72.5x70 400 mm / 15.7 in 72.5 mm 70 — not yet checked
40JX · legacy Mini excavator 400x72.5x72 400 mm / 15.7 in 72.5 mm 72 — disagrees
40NX Mini excavator 400x72.5x72 400 mm / 15.7 in 72.5 mm 72 — not yet checked
45N · legacy Mini excavator 400x72.5x72 400 mm / 15.7 in 72.5 mm 72 — not yet checked
45NX Mini excavator 400x72.5x72 400 mm / 15.7 in 72.5 mm 72 — matches
55N · legacy Mini excavator 400x72.5x74 400 mm / 15.7 in 72.5 mm 74 — matches
55UX Mini excavator 400x72.5x74 400 mm / 15.7 in 72.5 mm 74 — matches
CL35 Compact track loader 320x86x52 320 mm / 12.6 in 86 mm 52 — not yet checked
CL45 Compact track loader 450x86x56 450 mm / 17.7 in 86 mm 56 — not yet checked
IS4GX · legacy Mini excavator 180x72x33 180 mm / 7.1 in 72 mm 33 — not yet checked
IS7J · legacy Mini excavator 180x72x37 180 mm / 7.1 in 72 mm 37 — 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.

IHI track sizes and the models that share them

SizeWidthPrimary onAlternate onOther brands
300x52.5x90 300 mm / 11.8 in 35NX, 35NX-2, 35V-4, 35V-5, 35VX, 35VX-3 — 3
230x48x70 230 mm / 9.1 in 15NX, 17VXE, 18J, 18N — 12
400x72.5x72 400 mm / 15.7 in 40JX, 40NX, 45N, 45NX — 9
180x72x33 180 mm / 7.1 in 4J, IS4GX — —
300x52.5x78 300 mm / 11.8 in 25NX, 25V-4 — 6
300x52.5x84 300 mm / 11.8 in 30NX, 35N — 8
400x72.5x74 400 mm / 15.7 in 55N, 55UX — 19
400x72.5x70 400 mm / 15.7 in 40G — —
320x86x52 320 mm / 12.6 in CL35 — 23
450x86x56 450 mm / 17.7 in CL45 — 25
180x72x37 180 mm / 7.1 in IS7J — 7

"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 IHI: IHI track and tire sizes by model · 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.