John Deere Product Details

959MH
The John Deere 959MH Track Harvester offers unmatched precision and efficiency in forestry operations through its advanced features like JDLinkâ„¢ telematics for real-time machine monitoring, TimberMaticâ„¢ Maps for optimized job site visualization, and a powerful and efficient John Deere PowerTechâ„¢ PSS 9.0L engine, all designed to boost productivity and operator comfort even in the toughest terrains.
- Net Power: 246 kW (330 hp) at 1,900 rpm
- Max. Boom Reach: 10.34 m (33 ft. 11 in.)
- Tractive Effort: 373 kN (83,880 lbf)
- Intelligent Boom Control (IBC) Enables Precise Boom Movements
Operate in Comfort

A large and spacious operator station features a floor-to-ceiling front window, ergonomic controls, and increased cab volume over prior models. It enhances operator comfort, which is crucial for maintaining high productivity during long operating hours.
Intelligent Boom Control

The Intelligent Boom Control (IBC) system enhances precision and efficiency by automating boom movements. With IBC, operators use a single lever to control the head direction, while the system manages boom and cylinder movements, making operations smoother and reducing operator fatigue.
TimberMaticâ„¢ Maps and TimberManagerâ„¢

TimberMaticâ„¢ Maps offers a real-time production view, optimized routes, and shared machine connectivity, enhancing jobsite awareness. TimberManagerâ„¢ allows web-based jobsite monitoring, enabling progress tracking and fleet optimization to streamline communication and boost efficiency.
Key Specs
| Manufacturer | John Deere |
| Model | PowerTechâ„¢ PSS 9.0L |
| Displacement | 549 cu in. |
| Peak Power | 330 hp |
| Manufacturer | John Deere |
| Model | PowerTechâ„¢ PSS 9.0L |
| Displacement | 549 cu in. |
| Peak Power | 330 hp |
| Hydraulics Type | Closed center, pressure compensated, load sense |
| Travel Speed - High, Forward and Reverse | 2.2 mph |
| Travel Speed - Low, Forward and Reverse | 1 mph |
| Harvesting Boom Size, With Thru-Nose Cradle | 33.9 ft |
| Harvesting Boom Size, With Thru-Nose Cradle | 33.9 ft |
| Approximate Weight of Base Machine | 81.19 lb. |
| Approximate Weight of Base Machine | 79.45 lb. |
| Boom Length | 29.9 ft |
| Lift Capacity, Bare Pin at Full Reach | 13600 lb. |
| Boom Length | 33.9 ft |
| Lift Capacity, Bare Pin at Full Reach | 10720 lb. |
Final Tier 4/EU Stage V Engine
| Manufacturer | John Deere |
| Model | PowerTechâ„¢ PSS 9.0L |
| Non-Road Emission Standards | EPA Final Tier 4/EU Stage V |
| Displacement | 549 cu in. |
| Speed Peak Power | 1900 rpm |
| Peak Power | 330 hp |
| Speed Net Peak Torque | 1500 rpm |
| Net Peak Torque | 1126 lb-ft |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine
| Manufacturer | John Deere |
| Model | PowerTechâ„¢ PSS 9.0L |
| Non-Road Emission Standards | EPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II |
| Displacement | 549 cu in. |
| Speed Peak Power | 1900 rpm |
| Peak Power | 330 hp |
| Speed Net Peak Torque | 1500 rpm |
| Net Peak Torque | 1126 lb-ft |
Cooling
| Fan Type | Suction type, hydraulically driven, variable speed, reversing |
Hydraulics
| Hydraulics Type | Closed center, pressure compensated, load sense |
| Main Pump Type | Variable-displacement axial piston |
| Main Pump Maximum Rated Flow | 131 gpm |
| Attachment Pump Type | Dedicated variable-displacement axial piston |
| Attachment Pump Maximum Rated Flow | 55 gpm |
| Oil Filtration | 2 main return filters, 10-micron return with bypass, 1 case-drain strainer, 25 micron |
Final Tier 4/EU Stage V Electrical
| Voltage | 24 V |
| Number of Batteries | 2 |
| Voltage Per Battery | 12 V |
| Alternator Rating | 150 amp |
| Work Lights | LED (124) |
| Service Lights | LED (2) |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical
| Voltage | 24 V |
| Number of Batteries | 2 |
| Voltage Per Battery | 12 V |
| Alternator Rating | 100-amp standard / 150-amp optional |
| Work Lights | LED (124) |
| Service Lights | LED (2) |
Undercarriage
| Type | Integral track guides, thick high-abrasion-resistant material, ramp angles, hydraulic track adjustment |
| Track Size | U7L Extreme Duty (EXD) |
| Track Chain | 8.5 in. |
| Number of Track Links Per Side | 47 |
| Lower Rollers Per Side | 10 |
| Carrier Slides/Rollers Per Side | 2 |
| Travel Speed - High, Forward and Reverse | 2.2 mph |
| Travel Speed - Low, Forward and Reverse | 1 mph |
| Tractive Effort | 83880 lbf |
Final Tier 4/EU Stage V Undercarriage
| Type | Integral track guides, thick high abrasion resistant material, ramp angles, hydraulic track adjustment |
| Size | U7L ExD LC |
| Track Chain | 8.5 in. |
| Number of Track Links Per Side | 50 |
| Lower Rollers Per Side | 11 |
| Carrier Slides/Rollers Per Side | 3 |
| Travel Speed - High, Standard Travel, Forward and Reverse | 2.4 mph |
| Travel Speed - Low, Standard Travel, Forward and Reverse | 1.2 mph |
| Tractive Effort, Standard Travel | 85.877 lbf |
Rotating Upper (Standard Swing System)
| Swing Speed Maximum | 4.8 rpm |
| Swing Torque | 81260 lb-ft |
| Swing Brake Type | Sealed wet multi-disc, manually applied/released |
Final Tier 4/EU Stage V Serviceability
| Fuel Tank | 285 gal. |
| Diesel-Exhaust Fluid (DEF) Tank | 11 gal. |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Serviceability
| Fuel Tank | 285 gal. |
Final Tier 4/EU Stage V Ground Pressure
| Conditions for Measuring Ground Pressure | Includes standard equipment, 8.84m Boom w/ RCS, STD Travel, Medium Extended Counterweight, half full fuel tank, all fluids, less attachment |
| Undercarriage Size | U7L EXD LC |
| Counterweight Size | Medium |
| Harvesting Boom Size, With Thru-Nose Cradle | 33.9 ft |
| Double Grouser Ground Pressure With 24-in. Track | 10.2 psi |
| Single Grouser Ground Pressure With 24-in. Track | 10.1 psi |
| Single Grouser Ground Pressure With 28-in. Track | 8.8 psi |
| Single Grouser Ground Pressure With 600mm Track | 67.2 kPa |
| Single Grouser Ground Pressure With 24-in. Track | 9.7 psi |
| Single Grouser Ground Pressure With 700mm Track | 57.9 kPa |
| Single Grouser Ground Pressure With 28-in. Track | 8.4 psi |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Ground Pressure
| Conditions for Measuring Ground Pressure | Includes standard equipment, half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD |
| Counterweight Size | Medium |
| Harvesting Boom Size, With Thru-Nose Cradle | 33.9 ft |
| Double Grouser Ground Pressure With 24-in. Track | 10.5 psi |
| Single Grouser Ground Pressure With 24-in. Track | 10.4 psi |
| Single Grouser Ground Pressure With 28-in. Track | 9 psi |
Final Tier 4/EU Stage V Operating Weight
| Conditions for Measuring Operating Weight | Includes standard equipment, 610-mm (24 in.) single-grouser tracks, flat skylight, half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD LC |
| Counterweight Size | Medium |
| Harvesting Boom Size, With Thru-Nose Cradle | 29 ft |
| Approximate Weight of Base Machine | 81.19 lb. |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Operating Weight
| Conditions for Measuring Operating Weight | Includes standard equipment, 610-mm (24 in.) single-grouser tracks, flat skylight, half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD |
| Counterweight Size | Medium |
| Harvesting Boom Size, With Thru-Nose Cradle | 29 ft |
| Approximate Weight of Base Machine | 79.45 lb. |
Boom Performance - Configuration 1
| Boom Length | 29.9 ft |
| Swath | 17.8 ft |
| Harvesting Head Used | HTH624C |
| Lift Capacity, Bare Pin at Full Reach | 13600 lb. |
| Lift Capacity, Bare Pin at 25 ft | 18130 lb. |
Boom Performance - Configuration 2
| Boom Length | 33.9 ft |
| Swath | 20.1 ft |
| Harvesting Head Used | HTH623C |
| Lift Capacity, Bare Pin at Full Reach | 10720 lb. |
| Lift Capacity, Bare Pin at 25 ft | 16100 lb. |
| Lift Capacity, Bare Pin at 30 ft | 12790 lb. |
Machine Dimensions
| Standard Undercarriage Size | U7L EXD |
| Overall Height With 29.9-ft Boom - Top of Cab With Flat Skylight | 13, 3 |
| Overall Height With 29.9-ft Boom - Top of Cab With Peaked Skylight | 13, 11 |
| Overall Height With 29.9-ft Boom - Top of Boom, Extended, Attachment Vertical | 13, 4 |
| Overall Track Length | 16, 1 ft, in. |
| Track Length, Idler to Sprocket Center | 12, 6 |
| Tail Swing, From Swing Center | 10, 5 |
| Maximum Boom Reach to Attachment Pin With 29.9-ft Boom | 29, 11 |
| Minimum Boom Reach to Attachment Pin With 29.9-ft Boom | 12, 1 |
| Cutting Swath With 29.9-ft Boom | 17, 10 |
| Maximum Boom Reach to Attachment Pin With 33.9-ft Boom | 33, 11 |
| Minimum Boom Reach to Attachment Pin With 33.9-ft Boom | 13, 10 |
| Cutting Swath With 33.9-ft Boom | 20, 1 |
| Ground Clearance With Single Grouser | 30 |
| Ground Clearance With Double Grouser | 29 |
| Upperstructure Width, Standard Walkway | 10, 6 |
| Track Gauge | 8, 11 |
| Width Over Tracks With 24-in. Track Shoes | 10, 11 |
| Width Over Tracks With 28-in. Track Shoes | 11, 3 |