Heavy Duty 12" Tracks for Mini Excavators (300x52.5Nx84)

Browse 300x52.5Nx84 | 12" Mini Excavator Tracks from TrackTECH. Confirm fitment, specifications, and availability before ordering.

Machines That Run 300x52.5x84 Rubber Tracks

The 300x52.5x84 size — 300 mm wide, 52.5 mm pitch, 84 links — fits 133 machines in our fitment database, including:

  • Kubota — K035, K035-3, KH033, KH033HG, KH090, KH101, KH90, KX030, and more
  • Komatsu — PC20-6, PC30-6, PC30-7, PC30-8, PC30MRX, PC30R-8, PC35, PC35-8, and more
  • JCB — 802,7ZTS, 8025ZTS, 8027ZTS, 803, 803 MAGNUM, 803 PLUS, 803 SUPER, 803,2ZTS, and more
  • Caterpillar — 303.5, 303CR, 303E-CR, MM35, MM35A, MM35B, MM35T, MM40SR, and more
  • Sumitomo — LS1000FXJ2, LS1000FXJ3, S100, S100F2, S100FJ3, SH30JX, SH30JX2, SH32J, and more
  • IHI — 35N, IS30JX, IS30NX, IS32J, IS35G, IS35GX, IS35J
  • Gehl — 353, 373, 383Z, GE353, GE373, MB358
  • Hitachi — EX33, EX35, EX35-1, EX40UR, EX40UR-1
  • Volvo — EC35, EC35C, EC35D, ECR38
  • Bobcat — E35I, E35SERIES, E35Z

Confirm Your Size Before You Order

Your track's full size code, including the guide-style letter, is molded on the inside of the rubber. Match all three numbers (width x pitch x links). Not sure? Use the Track Finder or call (850) 816-7898 and we'll verify fitment for your machine before it ships.

Heavy-Duty 300x52.5Nx84 Rubber Tracks

300x52.5Nx84 rubber tracks are built for mini excavators and compact machines that need dependable traction, smooth travel, and long service life in demanding jobsite conditions. This replacement track size supports stable machine control across excavation, trenching, utility work, drainage, landscaping, clay, gravel, and mixed terrain.

Reinforced Rubber and Steel Strength

Premium virgin rubber compounds help resist tearing, chunking, cracking, dry rot, and premature wear in harsh field conditions. Continuous steel cord reinforcement adds internal strength, helps reduce stretching, and supports consistent track stability through repeated loading, turning, and travel.

Precision-Aligned Fit Geometry

Guide lug geometry, steel link spacing, and track body construction are built for direct replacement undercarriage engagement. Proper alignment helps support smooth sprocket contact, stable tracking, reduced vibration, and less stress on rollers, idlers, and sprockets.

Built for Uptime

Heavy-duty construction and jobsite-ready traction help keep equipment productive through long operating hours. The result is a replacement rubber track built for strong value over the full life of the track.

Frequently Asked Questions

Which machines use a 300x52.5Nx84 rubber track?

The 300x52.5Nx84 size fits machines including Bobcat E35, CAT 303 CR, Doosan DX30, Doosan DX30Z, Komatsu PC30-7, Komatsu PC30MR, Komatsu PC35MR, Kubota KX101, Volvo EC35C, Volvo EC35D, Volvo ECR38. Match your machine model and confirm width x pitch x links before ordering.

How do I know if 300x52.5Nx84 is my correct track size?

Read the size stamped inside your current track, or measure width (mm) x pitch (mm) x number of links. Send it to us and we'll confirm.

What tread patterns are available in this size?

Common options are directional (multi-bar) for traction and mud release, and block/C-lug for hard surfaces and pavement. Ask us which suits your jobsite.

How fast does this size ship?

In-stock sizes ship fast from US warehouses, most within 1–2 business days with tracking.

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Heavy Duty 12" Tracks for Mini Excavators (300x52.5Nx84)
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About Heavy Duty 12" Tracks for Mini Excavators (300x52.5Nx84)

300x525Nx84 rubber tracks that fit multiple makes and models running this size. Match by size for guaranteed fitment, then put dominant strength and maximum traction to work.

  • Continuous steel cord for load strength and de-track resistance
  • Advanced rubber compound built for heavy-duty use
  • Maximum traction tread matched to your machine's working conditions
  • Anti-vibration ride for improved operator comfort

Fitment Confidence

Every order is OEM-verified with photo confirmation, so you know it fits before it ever leaves the dock. Call, text, or FaceTime us — real support, real people.

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. Buy 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 replacement parts questions

Which machines use a 300x52.5Nx84 rubber track?
The 300x52.5Nx84 size fits machines including Bobcat E35, CAT 303 CR, Doosan DX30, Doosan DX30Z, Komatsu PC30-7, Komatsu PC30MR, Komatsu PC35MR, Kubota KX101, Volvo EC35C, Volvo EC35D, Volvo ECR38. Match your machine model and confirm width x pitch x links before ordering.
How do I know if 300x52.5Nx84 is my correct track size?
Read the size stamped inside your current track, or measure width (mm) x pitch (mm) x number of links. Send it to us and we'll confirm.
What tread patterns are available in this size?
Common options are directional (multi-bar) for traction and mud release, and block/C-lug for hard surfaces and pavement. Ask us which suits your jobsite.
How fast does this size ship?
In-stock sizes ship fast from US warehouses, most within 1–2 business days with tracking.