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Find Parts for CAT 306CR

Keep your Cat 306CR in the dirt with precision-fit 400x72.5Wx76 tracks and matched undercarriage parts. OEM-quality build, 24-month warra...

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CAT 306CR Tracks & Parts

Heavy Duty Rubber Tracks

Track options for CAT 306CR

CAT 306CR fitment data

Machine Performance

Operating Weight 13800 lb
Horsepower 56 HP
ROC / Bucket Force 14200 lb

Hydraulics & Lift

Standard Flow 22.5 GPM
High Flow 33 GPM
Hydraulic Pressure 3916 PSI
Lift Type Zero

Part Numbers

Track Size 400x72.5wx76
Sprocket 158-4795
Idler 241-5973
Roller 277-8576
About CAT 306CR Tracks & Parts

Replacement CAT 306CR rubber tracks built for this mini excavator. Built for your machine — exact width, pitch, and lug profile — with high-tensile continuous steel cord for dominant strength and maximum traction.

  • High-tensile steel-cord carcass for dominant strength under daily duty
  • Heavy-duty performance grade — no stretch, no premature tearing
  • Deep, aggressive tread for maximum traction and long wear life
  • Precision grade control for smooth, confident operation

OEM-Verified Fitment — No Guesswork

We send photo verification with every order. Call, text, or FaceTime — whatever works for you, works for us — and we'll confirm the exact fit before it ships.

Backed by a certified 24-month warranty — we stand behind every track. Free shipping and dealer-direct pricing on every order. Heavy Duty Comes Standard. Order Now.

Verified fitment support

Built to keep the job moving

Get the correct rubber track size, tread pattern, and undercarriage match before you order. Send your machine model and we will verify fitment against the catalog record.

Heavy-Duty Construction Continuous steel cord and forged steel links help prevent mid-project blowouts under load.
100% Premium Grade Rubber Abrasion-resistant rubber resists cuts and chunking in mud, rock, and demolition cleanup.
Fast Freight Same-day shipping is available on qualifying orders placed before 12 PM CT.
Fitment Check We confirm size, guide, pitch, links, tread pattern, and related undercarriage parts.
Need the right track fast? Send make, model, quantity, and delivery ZIP for a verified quote.
Request Quote Check Reviews

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Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

What size rubber track does the Cat 306CR use?
The Cat 306CR uses a 400x72.5Wx76 rubber track. Note the W (wide guide) guide-lug type — other guide types won't seat correctly on the rollers. Always confirm against your current track or the machine's spec plate, since some units shipped with more than one option.
Will this track fit my Cat 306CR?
Yes — this track is matched to the Cat 306CR by size and tread pattern. If your machine has a serial break or factory option, send the serial number and we'll verify fitment before shipping.
What warranty comes with Cat 306CR tracks?
Our rubber tracks carry a 24-month warranty against manufacturing defects, with continuous steel cords and wear-resistant compounds. Technicians by trade; heavy duty comes standard.
How do I confirm the right track size for my Cat 306CR?
Read the size stamped on the inside of your current track, or measure width x pitch x links. Not sure? Message us and we'll match it.
How long do Cat 306CR rubber tracks last?
Most rubber tracks last 1,200–1,600 operating hours depending on terrain, alignment, and tension. Keeping tracks tensioned and clearing debris daily extends life.