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  4. Rubber Track, 12" 300 x 71 x 72, New, Komatsu, 390

Rubber Track, 12" 300 x 71 x 72, New, Komatsu, 390

300x71x72" rubber track
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$1,834.56
$1,703.52
(You save $917.28 )

Purchasing info

Please contact our team for purchasing information and to inquire about product compatibility.

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Rubber Track, 12" 300 x 71 x 72, New, Komatsu, 390

Compatible with Komatsu Crawler Dozer(s) D20A-7, D21A-6, D21A-7, D21A-8 Replaces Mfg Number(s) 390 Width: 300 mm Pitch: 71 mm Links: 72 Advanced Rubber Compound Precision-manufactured from high-quality synthetic and virgin natural rubber Superior flexibility Strong resistance to abrasion and tears Hardened, Forged Steel Drive Links Tempered for unmatched strength and durability Helps ensure correct fitment, reliability and longevity Reduces vibration in virtually and operating conditions Continuous Steel Cord Technology Helically wound to guarantee even strength and weight distribution Eliminates cord bonding weakness; a cause of 80% of track failures Ensures entire track circumference maintains its integrity for life Item ships via LTL freight carrier

Why choose these tracks

  • Durable rubber compound for extended service life in abrasive field environments.
  • Strong internal reinforcement to handle demanding loads and repeated flex cycles.
  • Optimized tread for reliable traction and stability in varied soil conditions.
  • Better flotation to help reduce rutting and ground pressure in soft fields.

Compatible equipment

  • Komatsu Crawler Dozer(s) D20A-7, D21A-6, D21A-7, D21A-8

Applications

  • Row crop and tillage operations
  • Field prep and general farm work
  • Wet/soft ground where flotation matters

Specs to confirm before ordering

What to verify Where to check Notes
Track size (Width × Pitch × Links) Sidewall markings / existing track Match exactly for proper fitment.
Pitch Existing track spec Pitch must match the sprocket/drive system.
Link count Count lugs/links on current track Confirm both sides; replace as a set when possible.
Machine model Unit tag / model plate Verify compatibility with your equipment.

Ordering notes

  • If you’re unsure, send us a photo of the sidewall size markings and your machine model.
  • Replacing tracks in pairs helps maintain even wear and handling.
  • Ask about matching undercarriage components if you’re seeing abnormal wear.
Track Pitch 71 mm
Track Link 72
Track Width 300 mm
MPN RT12X300X71
Weight: 0.00 LBS

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