Mini Excavator

Kubota KX040-4 Mini Ex Tracks

Fits track size: 300x52.5x86

Choose your tread pattern. OEM-grade, continuous steel cord, free freight.

24-Month Warranty Free Freight Same-Day Shipping Fleet Discounts
Kubota KX040-4 rubber tracks and parts
Machine Performance
  • Operating Weight9460 lbs
  • Horsepower36.0 HP
  • ROC / Bucket Force10200 lbs
  • Track Size300x52.5x86
Hydraulics & Lift
  • Standard Flow15.1 GPM
  • Hydraulic Pressure3626 PSI
  • Lift TypeConventional
OEM Reference Parts
  • Sprocket P/NRD118-14433
  • Front Idler P/NFIRD118-21300
  • Bottom Roller P/NRD118-21700

Kubota KX040-4 Mini Ex Tracks

Pick your track size (OEM fit: 300x52.5x86), then choose a tread pattern. OEM-grade continuous steel cord · free freight.

Kubota KX040-4 Mini Ex · 350x54.5x86

MX Pattern

Heavy-Duty Rubber Track

MX Pattern

Track Size: 350x54.5x86

$1,149.00$1,521.00Save $372.00

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Kubota KX040-4 Mini Ex Undercarriage

OEM-cross-referenced sprockets, idlers & rollers for the Kubota KX040-4. Drop-in fit for 300x52.5x86.

Kubota KX040-4 Mini Ex Sprockets

Part number depends on serial break — confirm your S/N before ordering.

Heavy-Duty Sprocket

Heavy-Duty Sprocket

Part #: SPRD118-14433

$209.00$239.00

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Kubota KX040-4 Mini Ex Front Idlers

Part number depends on serial break — confirm your S/N before ordering.

Heavy-Duty Front Idler

Heavy-Duty Front Idler

Part #: FIRD118-21300

$599.00$679.00

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Kubota KX040-4 Mini Ex Rollers

Part number depends on serial break — confirm your S/N before ordering.

Heavy-Duty Track Roller

Heavy-Duty Track Roller

Part #: CRRD411-22900

$129.00$149.00

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Heavy-Duty Track Roller

Heavy-Duty Track Roller

Part #: TRRD118-21700

$179.00$209.00

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Kubota KX040-4 Mini Ex Attachments

Excavator Pin-On mount for the Kubota KX040-4. Buckets, grapples, forks, brush cutters & more — selected for this machine.

Backhoe Heavy Duty Bucket

Attachment

Backhoe Heavy Duty Bucket

$495.00

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Kubota KX040-4 FAQs

Common questions about Kubota KX040-4 tracks, undercarriage parts, and attachments.

What size rubber tracks fit the Kubota KX040-4?
The Kubota KX040-4 commonly uses track size 300x52.5x86. Verify against your machine's existing track sidewall marking or OEM manual before ordering.
Are Heavy Iron tracks guaranteed to fit my Kubota KX040-4?
Yes. Every rubber track order requires you to confirm make and model at checkout. We cross-reference OEM specs and only ship when fitment is verified. Wrong-fit claims are covered under our fitment guarantee.
How fast do Kubota KX040-4 tracks ship?
Orders placed before 12PM CT ship the same business day. Rubber tracks ship free via LTL freight to the contiguous United States (48 states).
What tread patterns are available for the Kubota KX040-4?
We stock 1+ tread option for the Kubota KX040-4 — including C-Block, multi-bar, zig-zag, and directional patterns. See the tracks section above for live pricing.
Do you sell undercarriage parts for the Kubota KX040-4?
Yes — sprockets, idlers, rollers, and related steel undercarriage components are listed on this page when in stock. Need an OEM part number matched? Call (850) 816-7898 with your serial number.

Ready to outfit your Kubota KX040-4?

Need a part not listed? We source OEM-cross undercarriage and attachments for every major brand. Free freight and fleet pricing.

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Or call us at: (850) 816-7898