Everything you need to choose a 400x72.5Nx72 rubber track (16" / 400mm wide) for mini excavators: verified machine fitment, full specs, and how to pick the right tread for your jobsite.
Track specifications
- Size: 400x72.5Nx72
- Width: 400 mm (16")
- Pitch: 72.5 mm
- Links: 72
- Guide type: N
- Construction: Continuous steel cords, drop-forged guide lugs, 100% virgin rubber
- Warranty: 24 months
Compatible machines
Verified fit for these mini excavators. Confirm your size before ordering — fitment varies by year and undercarriage.
Komatsu: Komatsu PC40MR, Komatsu PC40MR-1, Komatsu PC40MRX, Komatsu PC40R, Komatsu PC45, Komatsu PC45-1, Komatsu Pc40 7, Komatsu Pc40R 7, Komatsu Pc40R 8, Komatsu Pc45 1E, Komatsu Pc45 7, Komatsu Pc45Mr 1, Komatsu Pc45Mrx, Komatsu Pc45R, Komatsu Pc45R 8, Komatsu Pc50 2, Komatsu Pc50 3, Komatsu Pc50Fr 1, Komatsu Pc50M 2, Komatsu Pc58, Komatsu Pc58Sf 1, Komatsu Pc58Uu 3, Komatsu Pc58Uu X
Choosing the right tread
Multi-Lug / Zig-Zag — best traction in mud, snow, and mixed terrain; great for landscaping and utility work.
C-Block / Block — thicker lugs resist cuts and abrasion; built for demolition, hardscape, and rock.
Common applications
- Demolition & abrasive surfaces: Concrete, rock, and rebar — a block / C-lug tread resists cuts and chunking.
- General construction & site prep: Daily dirt work, grading, and loading where balanced traction and wear life matter.
- Forestry & land clearing: High-impact terrain demanding continuous steel cords and drop-forged links.
- Utility, trenching & grading: Precision passes where stability and a smooth rolling path protect the undercarriage.
Ready to order?
Shop all 400x72.5Nx72 tracks & tread options → · Free shipping · 24-month warranty · Call (850) 816-7898 for fitment help. Heavy Duty Comes Standard.