Komatsu Rubber Tracks
Shop replacement rubber tracks and undercarriage parts for Komatsu equipment. We carry products verified for fitment across 661+ Komatsu models, every track shipping free with a 30-month warranty and confirmed fitment for your exact machine.
UltraTrack HDX Series 18" 450X86X56 Z Tread Rubber Track
UltraTrack X Series 12" 300x52.5Nx84 Staggered Directional Tread Short Pitch Rubber Track
UltraTrack HDX Series 12" 300x52.5Kx84 V Lug Tread Short Pitch Rubber Track
UltraDrive Top Roller – Inner, New, Komatsu, 20T-30-73101
About Komatsu Equipment
Komatsu compact equipment is used every day across construction, landscaping, snow removal, and agriculture. UltraTrack stocks aftermarket rubber tracks and undercarriage parts verified to fit 661+ Komatsu models, built to the same dimensional specifications as the originals.
Track size varies by model and frame class, which is why selecting by exact model number is critical. Use the size chart below to match your machine, or our Parts Finder to confirm the precise track for your Komatsu unit.
Komatsu undercarriages use a standard sprocket, idler, and roller layout. When replacing tracks it pays to inspect the sprocket teeth and roller condition — worn drive components shorten the life of a new set of tracks.
Popular Models
- Komatsu CK30 Rubber Tracks 19 products
- Komatsu SK815-5 Rubber Tracks 12 products
- Komatsu PC60-6 Rubber Tracks 10 products
- Komatsu PC28 Rubber Tracks 10 products
- Komatsu PC07 Rubber Tracks 8 products
- Komatsu PC30 Rubber Tracks 8 products
- Komatsu PC78US-6 Rubber Tracks 7 products
- Komatsu PC28-2 Rubber Tracks 7 products
Komatsu Rubber Track Size Chart
| Track Size (W×P×L) | Models |
|---|---|
| 180x72x33 | PC02, PC02-1A, PC02-A |
| 180x72x37K | PC03, PC03 AVANCE, PC03-1, PC03-2, PC03-2 AVANCE, PC09, PC09-1 |
| 180x72x37 | PC03, PC03 AVANCE, PC03-1, PC03-2, PC03-2 AVANCE, PC09, PC09-1 |
| 200x72x43 | PC09, PC09FR-1 |
| 230x48x62 | PC 05 AVANCE R, PC05, PC05-6, PC05-7, PC05-8, PC05R, PC07, PC07 AVANCE R, PC07-1, PC07-2, PC07-2E, PC07-6, PC07-7, PC07R, PC12R-8, PC15R, PC15R HS, PC15R-8 |
| 230x48x70 | PC15MR, PC15MRX-I, PC17, PC18ME-3, PC18MR, PC18MR-2 |
| 230x72x42 | PC05, PC05-1, PC05-2, PC05-5, PC05-6 |
| 230x72x42K | PC05-1, PC05-2, PC05-5 |
| 230x72x43 | PC09FR-1 |
| 230x72x47 | PC07FR, PC15FR-1 |
| 230x96x31 | PC 05 AVANCE R, PC05, PC05-6, PC05-7, PC05-8, PC05R, PC07, PC07 AVANCE R, PC07-1, PC07-2, PC07-2E, PC07-6, PC07-7, PC07R, PC12R-8, PC15R, PC15R HS, PC15R-8 |
| 230x96x35 | PC15MR, PC15MRX-1, PC15MRX-I, PC17, PC18ME-3, PC18MR, PC18MR-2, PC18MR-3 |
| 300x71x72 | D20A-7, D21A-6, D21A-7, D21A-8 |
| 320x86x48 | CK16, CK18 |
| 320x86x52 | CK20, CK20-1, CK25, CK25-1 |
| B320x86x52 | CK20, CK20-1, CK25, CK25-1 |
| B320x86x54 | SK815, SK818, SK820 |
| 320x86x56 | CK30, CK30-1, CK35-1 |
| 320x90x58 | CD23, CD30R |
| 320x100x40 | PC10, PC10-5 |
| 320x100x42 | PC15, PC15-1, PC28 |
| 320x100x43 | PC15, PC15-1, PC28, PC28-1 |
| 320x100x45 | PC20, PC20-5, PC30, PC30-5 |
| 450x76x80 | PC75R, PC75R-2 |
| 450x76x84 | PC95 |
| 450x86x56 | CK30, CK30-1, CK35, CK35-1 |
| B450x86x56 | CK30, CK30-1, CK35, CK35-1 |
| 450x86x56Q | CK30-1, CK35, CK35-1 |
| 600x100x82 | CD60R, CD60R-1A, CD60R-1B |
| 800x150x67K | CD110R, CD110R-1, CD110R-2 |
| 800x150x67 | CD110R, CD110R-1, CD110R-2 |
Komatsu OEM Tracks vs Ultra Track Aftermarket
OEM Komatsu rubber tracks purchased through a dealer carry premium pricing and a standard parts warranty of around 12 months.
Ultra Track aftermarket rubber tracks for Komatsu machines are built to the same dimensional specifications and use equivalent construction: continuous steel cord belting, virgin rubber compounds, and drop-forged steel links — at well below dealer pricing and backed by a 30-month warranty, more than double standard OEM coverage.
Both deliver the same fitment, ground-pressure distribution, and traction. Service life is comparable when the aftermarket track uses continuous wound cords and virgin rubber, which Ultra Track tracks do.
Maintaining Your Komatsu Rubber Tracks
Track Tension
Check track tension at the start of every operating day. Typical sag on a compact track loader is about 1 to 1.5 inches at the midpoint between the front idler and rear sprocket — always confirm the exact figure in your Komatsu operator's manual.
Undercarriage Cleaning
Packed material adds weight, raises fuel burn, and causes uneven wear. Hose out the undercarriage at the end of each day, especially in clay or wet soil.
When to Replace
Replace tracks when you see cracking between lugs deeper than 1/4 inch, exposed steel cords, uneven lug height, or slipping on the sprocket despite correct tension. Quality aftermarket tracks average 1,200 to 2,000 hours.
Replace Undercarriage Components Together
Sprockets often wear faster than tracks on machines run hard on abrasive surfaces. Inspect sprocket teeth, idler bearings, and rollers when installing new tracks.
Frequently Asked Questions
What size rubber tracks does a Komatsu CK30 use?
The Komatsu CK30 uses a 320x86x56 rubber track. You can verify this with our Parts Finder or the size chart above.
How much do Komatsu rubber tracks cost?
OEM Komatsu tracks from a dealer carry premium pricing. Ultra Track aftermarket tracks for Komatsu machines are built to the same dimensional specifications and continuous steel cord construction, backed by a 30-month warranty, at well below dealer pricing.
Are aftermarket rubber tracks as good as Komatsu OEM tracks?
Quality aftermarket tracks built with continuous wound steel cords and virgin rubber compounds deliver comparable fitment and service life to OEM. The main difference is cost.
Do you carry undercarriage parts for Komatsu equipment?
Yes. We carry sprockets, idlers, bottom rollers, and top rollers for most Komatsu models. Replacing worn undercarriage components alongside new tracks extends the life of both.
How do I find the right rubber track for my Komatsu machine?
Use our Parts Finder and enter your Komatsu model number, or call (866) 516-8473 and our team will confirm the exact fit.