What size tracks fit a Caterpillar 305CR?

The Caterpillar 305CR takes 400x72.5x72 tracks as its primary size, with alternates 400x72.5x80.

What other machines share Caterpillar 305CR tracks?

12 other models take the same primary size, including Case CX50C, Caterpillar 304CR, Caterpillar 305.5DCR, Hitachi ZX40U, Hitachi ZX50U.

Caterpillar 305CR Tracks

Mini excavator · current model · independently corroborated

The Caterpillar 305CR takes 400x72.5x72 rubber tracks (400 mm, about 16 in wide; 72.5 mm pitch; 72 links). An alternate size is 400x72.5x80.

11000lb weight

42hp · 3013

12.11dig depth

16.8"track width

Fitment detail

Configuration	Size	Width	Pitch	Links
Primary	`400x72.5x72`	400 mm / ~16"	72.5 mm	72
Alternate	`400x72.5x80`	400 mm / ~16"	72.5 mm	80

Specifications and sources

Spec	Value	Source
Primary track size	400x72.5x72	skidsteers.com
Alternate track sizes	400x72.5x80	skidsteers.com
Operating weight	11000 lb	ritchiespecs.com
Engine power	42 hp (3013)	ritchiespecs.com
Track width	16.8 in	ritchiespecs.com

Track size independently corroborated by a second source: grizzlyrubbertracks.com.

Tracks you can buy for the 305CR

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.

`400x72.5wx72` 2 options

Tread	Duty	Price	Stock	From
Block	HD	$2565.00 / set	unknown	skidsteers.com
MX	XD	$2565.00 / set	unknown	skidsteers.com

Available from

Seller	Observed price	Options seen	Ships	Checked
grizzlyrubbertracks.com	$1400–$1794 / track	block	next-day to 37 states; same-day pickup in 17 states	2026-08-19
skidsteers.com	$2565 / set	block, multi-bar · HD, XD	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 305CR's primary size (400x72.5x72):

Caterpillar 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, independently corroborated across two sources.

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