What size tracks fit a Kobelco SK55SRX?

The Kobelco SK55SRX takes 400x72.5x74 tracks as its primary size.

What other machines share Kobelco SK55SRX tracks?

20 other models take the same primary size, including Bobcat E45, Bobcat E50, Bobcat E55, Case CX55B, Hitachi ZX50U.

Kobelco SK55SRX Tracks

Mini excavator · current model · independently corroborated

The Kobelco SK55SRX takes 400x72.5x74 rubber tracks (400 mm, about 16 in wide; 72.5 mm pitch; 74 links).

Fitment detail

Configuration	Size	Width	Pitch	Links
Primary	`400x72.5x74`	400 mm / ~16"	72.5 mm	74

Specifications and sources

Spec	Value	Source
Primary track size	400x72.5x74	skidsteers.com

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

Tracks you can buy for the SK55SRX

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

BD 1
MX 1

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

`400x72.5kx74` 2 options

Tread	Duty	Price	Stock	From
BD	Heavy	$3654.00 / pair	in stock	skidsteers.com
MX	Heavy	$4270.50 / pair	out of stock	skidsteers.com

Available from

Seller	Observed price	Options seen	Ships	Checked
grizzlyrubbertracks.com	$1295–$1485 / track	block · standard, HD	next-day to 37 states; same-day pickup in 17 states	2026-08-19
skidsteers.com	$3654.0–$4270.5 / set	· HD	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

20 other machines take the SK55SRX's primary size (400x72.5x74):

Kobelco track size chart: every model →

Undercarriage parts for the SK55SRX

Component	Observed price	From	Checked
Roller	$131.27	skidsteers.com	2026-08-18

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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