This is the complete 300x52.5Nx78 sizing & fitment guide. The 12" (300mm) belt runs on a range of mini excavators — here's how to confirm it fits and which tread to run.
Track specifications
- Size: 300x52.5Nx78
- Width: 300 mm (12")
- Pitch: 52.5 mm
- Links: 78
- 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.
Case: Case CX26C
Hitachi: Hitachi Ex25U, Hitachi Ex27U, Hitachi Ex29Ur, Hitachi ZX27U
Hyundai: Hyundai Robex25Z9A, Hyundai Robex25Z9Ak
John: John Deere 27CZTS, John Deere 27ZTS
Komatsu: Komatsu PC20MR, Komatsu Pc20Mr 1, Komatsu Pc20Mr 2, Komatsu Pc20Mrx, Komatsu Pc20Mrxutility, Komatsu Pc20Uu
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
- Utility, trenching & grading: Precision passes where stability and a smooth rolling path protect the undercarriage.
- Mud & snow: Loose, wet, or frozen ground where an aggressive multi-lug tread clears and grips.
- Forestry & land clearing: High-impact terrain demanding continuous steel cords and drop-forged links.
- Demolition & abrasive surfaces: Concrete, rock, and rebar — a block / C-lug tread resists cuts and chunking.
Ready to order?
Shop all 300x52.5Nx78 tracks & tread options → · Free shipping · 24-month warranty · Call (850) 816-7898 for fitment help. Heavy Duty Comes Standard.