John Deere 850L
A hydrostatic mid-size dozer with factory grade control
The John Deere 850L is a 20-tonne-class crawler dozer with a dual-path hydrostatic drive, a choice of SmartGrade machine control and a reputation for smooth, precise grading.
+Strengths
- Dual-path hydrostatic drive gives full power to both tracks while turning
- SmartGrade factory machine control option
- Excellent visibility to the blade
−Watch-outs
- Primarily sold in the Americas
- Hydrostatic systems require careful maintenance of fluids and filters
Overview
The John Deere 850L is the largest of Deere's L-series crawler dozers and competes with the Cat D6 and Komatsu D65 class, though it is slightly lighter. It replaced the 850K, keeping the dual-path hydrostatic drive that Deere has refined over many years.
Dual-path hydrostatic drive
Each track has its own pump and motor. That means the dozer can maintain full power to both tracks while turning, and counter-rotate in place. Operators can set the machine to stay at a chosen speed regardless of load, which makes production dozing and finish grading consistent.
SmartGrade
Deere offers SmartGrade, a factory-integrated 3D grade control system with masts or mastless sensors, as well as entry-level features like Slope Control. The PAT blade version is particularly popular with site developers.
Who it suits
Site development contractors and road builders in North and South America who want a hydrostatic dozer with modern grade control and a strong Deere dealer.
John Deere 850L specifications
| Operating weight | ≈20,000–21,500 kg (44,000–47,400 lb) |
|---|---|
| Net power | ≈168 kW (225 hp) |
| Blade | PAT or SU, up to ≈5 m³ (6.5 yd³) |
| Engine | John Deere PowerTech 9.0 L |
| Drive | Dual-path hydrostatic |
Figures are typical for standard configurations as published by John Deere. Values vary by market, emissions tier, attachments and options; confirm with your dealer before purchase, transport or lifting.
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