Komatsu PC55MR-3 Rubber Tracks & Parts

Keep your Komatsu PC55MR running with OEM-quality undercarriage components — sprockets, idlers and rollers built to spec. Free freight, same-day dispatch on in-stock parts.

Komatsu PC55MR Undercarriage Lineup

Complete the rebuild with matched-fit components for the Komatsu PC55MR:

The TrackTECH Difference

  • Premium virgin rubber — anti-chunk compound built for long service life in abrasive conditions.
  • Endless high-tensile cables — single-cure construction with no weak splice point.
  • Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
  • Precision OEM alignment — a reinforced roller path keeps running smooth and vibration low.

Upgrade your Komatsu PC55MR today. Order online for free freight, or call (850) 816-7898. Need a hand matching size and guide? Try the Track Finder.

Free US Shipping100% Fit GuaranteePremium OEM Quality

Shop Parts
Komatsu mini excavator parts

Track sizes

Heavy-Duty Rubber Tracks for PC55MR-3

|
  • 16" Heavy-Duty 400x72.5Nx74 Rubber Tracks (400x72.5Nx74)
    TrackTECH
    16" Heavy-Duty 400x72.5Nx74 Rubber Tracks (400x72.5Nx74)
    $1,765.60$1,535.30

    In stock

    Add to quote
  • Komatsu PC55MR-3
    Bridgestone
    Komatsu PC55MR-3
    $2,429.00$2,311.25

    In stock

    Add to quote

  • 100% Virgin Rubber

    Engineered to resist chunking, tearing, and cutting in harsh, abrasive environments.

  • Continuous Steel Cords

    Jointless internal cable architecture eliminates structural weak points and maximizes overall tensile strength.

  • Drop-Forged Links

    Precision heat-treated guide lugs ensure exact sprocket engagement and prevent de-tracking under heavy side-loads.

  • Corrosion Resistant

    The internal steel framework is fully encapsulated to prevent oxidation, rust, and moisture penetration.

  • Reinforced Sidewalls

    Extra-thick vulcanized rubber and tapered edge profiles protect against curb slashing and lateral impacts from jobsite debris.

  • Low-Vibration Tread

    Optimized lug spacing and pitch geometry absorb shock, reducing undercarriage wear and minimizing cabin vibration.

Komatsu PC55MR-3 Rubber Tracks & Parts fitment data

Machine Performance

Operating Weight11375 lb

Fitment & Part Numbers

Track Size400x72.5x74
Sprocket2054978
Idler9237507

Verified-fit rubber tracks and undercarriage parts for the Komatsu PC55MR-3. Confirm size and tread before ordering.

Frequently Asked Questions

What size rubber tracks fit a Komatsu PC55MR-3?
The Komatsu PC55MR-3 can use 400x72.5x74 rubber tracks. Match the full size on the track you are replacing before you order. If your machine has more than one track setup, choose the width and guide style that matches the track currently on the machine.