What size tracks fit a IHI 40NX?

The IHI 40NX takes 400x72.5x72 tracks as its primary size.

What other machines share IHI 40NX tracks?

12 other models take the same primary size, including Case CX50C, Caterpillar 304CR, Caterpillar 305.5DCR, Caterpillar 305CR, Hitachi ZX40U.

IHI 40NX Tracks

Mini excavator · current model

The IHI 40NX takes 400x72.5x72 rubber tracks (400 mm, about 16 in wide; 72.5 mm pitch; 72 links).

Fitment detail

Configuration	Size	Width	Pitch	Links
Primary	`400x72.5x72`	400 mm / ~16"	72.5 mm	72

Specifications and sources

Spec	Value	Source
Primary track size	400x72.5x72	skidsteers.com

Tracks you can buy for the 40NX

Available tread patterns (schematics are our own drawings, verified against seller product photos):

Block 1
MX 1

2 products across 1 sellers — every distinct tread pattern and duty tier we verified. Observed prices, dated.

`400x72.5x72` — 16" wide 2 options

Tread	Duty	Price	Stock	From
Block	Heavy Duty	$2565.00 / set of 2	unknown	skidsteers.com
MX	Extreme Duty	$2565.00 / set of 2	unknown	skidsteers.com

Available from

Seller	Observed price	Options seen	Ships	Checked
skidsteers.com	$2565.00 / set	MX Tread · Extreme Duty	not stated	2026-08-19

Sellers listed alphabetically — every seller we independently verified for this machine. Prices are observed public listings on the dated check, not offers by this site; this site sells nothing and has no affiliate relationships.

These tracks also fit

12 other machines take the 40NX's primary size (400x72.5x72):

IHI track size chart: every model →

Before you order

Width, pitch, and link count must all match — measure your current tracks to confirm, and check your operator's manual for serial-number-specific variations.

Data verified 2026-10-01; aftermarket cross-reference sizes.

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