John Deere industrial tractors

John Deere 550A

The John Deere 550A is a bulldozer manufactured by John Deere from 1983 to 1984. It features a John Deere 4.5L 4-cylinder turbocharged diesel engine producing 86 hp gross and 78 hp net. The tractor uses a 3-speed power shift transmission and has a crawler drive with optional cab and four-post ROPS. It has a fuel capacity of 36 gallons and a hydraulic system capacity of 9.5 gallons with an open center type hydraulic system. The 550A weighs 15,820 lbs and rides on 16-inch wide tracks. It is equipped with a 96-inch front-mount blade with hydraulic lift and angling capabilities. The 550A was built in Dubuque, Iowa, USA, and is part of a series including the 550 and 550B models.
Power-
Founded-
Model550A

Technical Specifications

Detailed specifications and technical data for John Deere 550A

Power
Engine (net)78 hp (58.2 kW)
Engine (gross)86 hp (64.1 kW)
Engine
Typeturbocharged diesel, 4-cylinder, liquid-cooled
ModelJohn Deere 4.5L 4-cyl diesel
Torque250 lb-ft (339.0 Nm)
Starterelectric
Rated RPM2200
Torque RPM1300
Bore/Stroke4.19x5.00 inches (106 x 127 mm)
Compression16.2:1
Power (net)78 hp (58.2 kW)
Displacement276 ci (4.5 L)
Oil capacity15 qts (14.2 L)
Power (gross)86 hp (64.1 kW)
Starter volts12
Coolant capacity20 qts (18.9 L)
Capacity
Fuel36 gal (136.3 L)
Hydraulic system9.5 gal (36.0 L)
Variants
550Abulldozer
555Aloader-crawler
Hydraulics
Typeopen center
Capacity9.5 gal (36.0 L)
Pressure2250 psi (155.1 bar)
Pump flow17 gpm (64.3 lpm)
Optional pump flow23 gpm (87.1 lpm)
Mechanical
Drivecrawler
SafetyFour-post ROPS. Cab optional.
Production
TypeBulldozer
Built inDubuque, Iowa, USA
Years made1983 - 1984
Attachments
Cut12.6 inches (32 cm)
Lift37.4 inches (94 cm)
Tilt11.75 inches (29 cm)
Blade96" Blade
Mountfront-mount
Angling25°
Lift typehydraulic-lift
Blade modelJohn Deere 6405
Blade width96 inches (243 cm)
Blade height32 inches (81 cm)
Transmission
Typepower shift
Gears3 forward and reverse
Oil capacity54 qts (51.1 L)
Dimensions & Tracks
Gauge52 inches (132 cm)
Weight15820 lbs (7175 kg)
Track width16 inches (40 cm)
Dozer length148 inches (375 cm)
Height (ROPS)100.9 inches (256 cm)
Ground pressure6.8 psi (0.5 bar)
Track area on ground2328 in² (1.5 m²)
Track length on ground72.75 inches (184 cm)