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John Deere 959MH Combine Harvester Specs

Boom Performance - Configuration 1

John Deere 959MH Combine Harvester Boom Performance - Configuration 1 specifications
Boom Length 29.90 ft (9.11 m) — Starting 2026 Model Year
Harvesting Head Used HTH624C — Starting 2026 Model Year
Lift Capacity, Bare Pin at 25 ft 18,130.00 lbs (8,223.64 kg) — Starting 2026 Model Year
Lift Capacity, Bare Pin at Full Reach 13,600.00 lbs (6,168.86 kg) — Starting 2026 Model Year
Swath 17.80 ft (5.43 m) — Starting 2026 Model Year

Boom Performance - Configuration 2

John Deere 959MH Combine Harvester Boom Performance - Configuration 2 specifications
Boom Length 33.90 ft (10.33 m) — Starting 2026 Model Year
Harvesting Head Used HTH623C — Starting 2026 Model Year
Lift Capacity, Bare Pin at 25 ft 16,100.00 lbs (7,302.85 kg) — Starting 2026 Model Year
Lift Capacity, Bare Pin at 30 ft 12,790.00 lbs (5,801.45 kg) — Starting 2026 Model Year
Lift Capacity, Bare Pin at Full Reach 10,720.00 lbs (4,862.52 kg) — Starting 2026 Model Year
Swath 20.10 ft (6.13 m) — Starting 2026 Model Year

Cooling

John Deere 959MH Combine Harvester Cooling specifications
Fan Type Suction type, hydraulically driven, variable speed, reversing — Starting 2026 Model Year

Final Tier 4/EU Stage V Electrical

John Deere 959MH Combine Harvester Final Tier 4/EU Stage V Electrical specifications
Alternator Rating 200 amp — Starting 2026 Model Year
Number of Batteries 2 — Starting 2026 Model Year
Service Lights LED (3) — Starting 2026 Model Year
Voltage 24.0 v — Starting 2026 Model Year
Voltage Per Battery 12.0 v — Starting 2026 Model Year
Work Lights LED (14) — Starting 2026 Model Year

Final Tier 4/EU Stage V Engine

John Deere 959MH Combine Harvester Final Tier 4/EU Stage V Engine specifications
Displacement 549.00 cu in (8,996.52 cu cm) — Starting 2026 Model Year
Manufacturer John Deere — Starting 2026 Model Year
Net Peak Torque 1,027.00 lbs ft (1,392.41 nm) — Starting 2026 Model Year
Non-Road Emission Standards EPA Final Tier 4/EU Stage V — Starting 2026 Model Year
Peak Power 330.00 hp (246.09 kw) — Starting 2026 Model Year
Speed Net Peak Torque 1500.0 rpm — Starting 2026 Model Year
Speed Peak Power 1900.0 rpm — Starting 2026 Model Year

Final Tier 4/EU Stage V Ground Pressure

John Deere 959MH Combine Harvester Final Tier 4/EU Stage V Ground Pressure specifications
Conditions for Measuring Ground Pressure Includes standard equipment, half-full fuel tank, and all fluids, less attachment — Starting 2026 Model Year
Counterweight Size Medium — Starting 2026 Model Year
Double Grouser Ground Pressure With 24-in. Track 10.6 psi — Starting 2026 Model Year
Harvesting Boom Size, With Thru-Nose Cradle 33.90 ft (10.33 m) — Starting 2026 Model Year
Single Grouser Ground Pressure With 24-in. Track 10.5 psi — Starting 2026 Model Year
Single Grouser Ground Pressure With 28-in. Track 9.1 psi — Starting 2026 Model Year
Undercarriage Size U7L EXD — Starting 2026 Model Year

Final Tier 4/EU Stage V Operating Weight

John Deere 959MH Combine Harvester Final Tier 4/EU Stage V Operating Weight specifications
Approximate Weight of Base Machine 83,280.00 lbs (37,775.22 kg) — Starting 2026 Model Year
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 — Starting 2026 Model Year
Counterweight Size Medium — Starting 2026 Model Year
Harvesting Boom Size, With Thru-Nose Cradle 33.90 ft (10.33 m) — Starting 2026 Model Year
Undercarriage Size U7L EXD — Starting 2026 Model Year

Final Tier 4/EU Stage V Serviceability

John Deere 959MH Combine Harvester Final Tier 4/EU Stage V Serviceability specifications
Diesel-Exhaust Fluid (DEF) Tank 11.00 gal (41.64 l) — Starting 2026 Model Year
Fuel Tank 285.00 gal (1,078.73 l) — Starting 2026 Model Year

Hydraulics

John Deere 959MH Combine Harvester Hydraulics specifications
Attachment Pump Maximum Rated Flow 55.00 gpm (208.18 lpm) — Starting 2026 Model Year
Attachment Pump Type Dedicated variable-displacement axial piston — Starting 2026 Model Year
Hydraulics Type Closed center, pressure compensated, load sense — Starting 2026 Model Year
Main Pump Maximum Rated Flow 141.00 gpm (533.69 lpm) — Starting 2026 Model Year
Main Pump Type Variable-displacement axial piston — Starting 2026 Model Year
Oil Filtration 2 main return filters, 10-micron return with bypass, 1 case-drain strainer, 25 micron — Starting 2026 Model Year

Key Specs

John Deere 959MH Combine Harvester Key Specs specifications
Approximate Weight of Base Machine 82,490.00 lbs (37,416.88 kg) — Starting 2026 Model Year
Boom Length 33.90 ft (10.33 m) — Starting 2026 Model Year
Displacement 549.00 cu in (8,996.52 cu cm) — Starting 2026 Model Year
Harvesting Boom Size, With Thru-Nose Cradle 33.90 ft (10.33 m) — Starting 2026 Model Year
Hydraulics Type Closed center, pressure compensated, load sense — Starting 2026 Model Year
Lift Capacity, Bare Pin at Full Reach 10,720.00 lbs (4,862.52 kg) — Starting 2026 Model Year
Manufacturer John Deere — Starting 2026 Model Year
Peak Power 330.00 hp (246.09 kw) — Starting 2026 Model Year
Travel Speed - High, Forward and Reverse 2.20 mph (3.54 kph) — Starting 2026 Model Year
Travel Speed - Low, Forward and Reverse 1.00 mph (1.61 kph) — Starting 2026 Model Year

Machine Dimensions

John Deere 959MH Combine Harvester Machine Dimensions specifications
Cutting Swath With 29.9-ft Boom 17.83 ft (5.44 m) — Starting 2026 Model Year
Cutting Swath With 33.9-ft Boom 20.08 ft (6.12 m) — Starting 2026 Model Year
Ground Clearance With Double Grouser 29.00 in (73.66 cm) — Starting 2026 Model Year
Ground Clearance With Single Grouser 30.00 in (76.20 cm) — Starting 2026 Model Year
Maximum Boom Reach to Attachment Pin With 29.9-ft Boom 29.92 ft (9.12 m) — Starting 2026 Model Year
Maximum Boom Reach to Attachment Pin With 33.9-ft Boom 33.92 ft (10.34 m) — Starting 2026 Model Year
Minimum Boom Reach to Attachment Pin With 29.9-ft Boom 12.08 ft (3.68 m) — Starting 2026 Model Year
Minimum Boom Reach to Attachment Pin With 33.9-ft Boom 13.83 ft (4.22 m) — Starting 2026 Model Year
Overall Height With 29.9-ft Boom - Top of Boom, Extended, Attachment Vertical 13.33 ft (4.06 m) — Starting 2026 Model Year
Overall Height With 29.9-ft Boom - Top of Cab With Flat Skylight 13.25 ft (4.04 m) — Starting 2026 Model Year
Overall Height With 29.9-ft Boom - Top of Cab With Peaked Skylight 13.92 ft (4.24 m) — Starting 2026 Model Year
Overall Track Length 16.08 ft (4.90 m) — Starting 2026 Model Year
Standard Undercarriage Size U7L EXD — Starting 2026 Model Year
Tail Swing, From Swing Center 10.42 ft (3.18 m) — Starting 2026 Model Year
Track Gauge 8.92 ft (2.72 m) — Starting 2026 Model Year
Track Length, Idler to Sprocket Center 12.50 ft (3.81 m) — Starting 2026 Model Year
Upperstructure Width, Standard Walkway 10.50 ft (3.20 m) — Starting 2026 Model Year
Width Over Tracks With 24-in. Track Shoes 10.92 ft (3.33 m) — Starting 2026 Model Year
Width Over Tracks With 28-in. Track Shoes 11.25 ft (3.43 m) — Starting 2026 Model Year

Rotating Upper (Standard Swing System)

John Deere 959MH Combine Harvester Rotating Upper (Standard Swing System) specifications
Swing Brake Type Sealed wet multi-disc, manually applied/released — Starting 2026 Model Year
Swing Speed Maximum 4.8 rpm — Starting 2026 Model Year
Swing Torque 81,260.00 lbs ft (110,172.31 nm) — Starting 2026 Model Year

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical

John Deere 959MH Combine Harvester Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical specifications
Alternator Rating 100-amp standard / 130-amp optional — Starting 2026 Model Year
Number of Batteries 2 — Starting 2026 Model Year
Service Lights LED (3) — Starting 2026 Model Year
Voltage 24.0 v — Starting 2026 Model Year
Voltage Per Battery 12.0 v — Starting 2026 Model Year
Work Lights LED (14) — Starting 2026 Model Year

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine

John Deere 959MH Combine Harvester Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine specifications
Displacement 549.00 cu in (8,996.52 cu cm) — Starting 2026 Model Year
Manufacturer John Deere — Starting 2026 Model Year
Net Peak Torque 1,126.00 lbs ft (1,526.63 nm) — Starting 2026 Model Year
Non-Road Emission Standards EPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II — Starting 2026 Model Year
Peak Power 330.00 hp (246.09 kw) — Starting 2026 Model Year
Speed Net Peak Torque 1500.0 rpm — Starting 2026 Model Year
Speed Peak Power 1900.0 rpm — Starting 2026 Model Year

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Ground Pressure

John Deere 959MH Combine Harvester Tier 3/EU Stage IIIA // Tier 2/EU Stage II Ground Pressure specifications
Conditions for Measuring Ground Pressure Includes standard equipment, half-full fuel tank, and all fluids, less attachment — Starting 2026 Model Year
Counterweight Size Medium — Starting 2026 Model Year
Double Grouser Ground Pressure With 24-in. Track 10.5 psi — Starting 2026 Model Year
Harvesting Boom Size, With Thru-Nose Cradle 33.90 ft (10.33 m) — Starting 2026 Model Year
Single Grouser Ground Pressure With 24-in. Track 10.4 psi — Starting 2026 Model Year
Single Grouser Ground Pressure With 28-in. Track 9.0 psi — Starting 2026 Model Year
Undercarriage Size U7L EXD — Starting 2026 Model Year

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Operating Weight

John Deere 959MH Combine Harvester Tier 3/EU Stage IIIA // Tier 2/EU Stage II Operating Weight specifications
Approximate Weight of Base Machine 82,490.00 lbs (37,416.88 kg) — Starting 2026 Model Year
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 — Starting 2026 Model Year
Counterweight Size Medium — Starting 2026 Model Year
Harvesting Boom Size, With Thru-Nose Cradle 33.90 ft (10.33 m) — Starting 2026 Model Year
Undercarriage Size U7L EXD — Starting 2026 Model Year

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Serviceability

John Deere 959MH Combine Harvester Tier 3/EU Stage IIIA // Tier 2/EU Stage II Serviceability specifications
Fuel Tank 285.00 gal (1,078.73 l) — Starting 2026 Model Year

Undercarriage

John Deere 959MH Combine Harvester Undercarriage specifications
Carrier Slides/Rollers Per Side 2 — Starting 2026 Model Year
Lower Rollers Per Side 10 — Starting 2026 Model Year
Number of Track Links Per Side 47 — Starting 2026 Model Year
Track Chain 8.50 in (21.59 cm) — Starting 2026 Model Year
Track Size U7L Extreme Duty (EXD) — Starting 2026 Model Year
Tractive Effort 83880.0 lbf — Starting 2026 Model Year
Travel Speed - High, Forward and Reverse 2.20 mph (3.54 kph) — Starting 2026 Model Year
Travel Speed - Low, Forward and Reverse 1.00 mph (1.61 kph) — Starting 2026 Model Year
Type Integral track guides, thick high-abrasion-resistant material, ramp angles, hydraulic track adjustment — Starting 2026 Model Year
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