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John Deere 300B

John Deere 300B tractor
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The John Deere 300B is an industrial tractor produced from 1974 to 1983. It was built in Dubuque, Iowa, USA. It features a 2.5L 3-cylinder engine available in diesel or gasoline versions, producing 43 hp net and 46 hp gross. The tractor has an 8-speed power shuttle transmission, two-wheel drive, and hydraulic wet disc brakes. It includes a four-post ROPS for operator safety. The hydraulics system is closed center with 2350 psi pressure and 28 gpm pump flow. Dimensions include a 77 inch wheelbase, 184.2 inch length, and weights ranging from 7450 lbs (loader-tractor) to 10650 lbs (backhoe). Attachments include front-end loaders and backhoes with detailed specifications for lift capacity, digging depth, and forces.
John Deere 300Bindustrial tractor2.5L enginediesel tractorgasoline tractor8-speed power shuttlefront-end loaderbackhoetractor specifications
Power-
Founded-
Model300B

Technical Specifications

Detailed specifications and technical data for John Deere 300B

Power

Engine:43 hp (32.1 kW)
Engine (net):43 hp (32.1 kW)
Engine (gross):46 hp (34.3 kW)

Engine

Torque:110 lb-ft (149.2 Nm)
Starter:electric
Fuel tank:19.5 gal (73.8 L)
Rated RPM:2500
Torque RPM:1300
Air cleaner:dry
Bore/Stroke:3.86x4.33 inches (98 x 110 mm)
Compression:16.2:1
Power (net):43 hp (32.1 kW)
Displacement:152 ci (2.5 L)
Oil capacity:9 qts (8.5 L)
Diesel engine:John Deere, diesel, 3-cylinder, liquid-cooled
Power (gross):46 hp (34.3 kW)
Starter volts:12
Engine options:John Deere 2.5L 3-cyl diesel, John Deere 2.5L 3-cyl gasoline
Gasoline engine:John Deere, gasoline, 3-cylinder, liquid-cooled
Coolant capacity:12 qts (11.4 L)
Gasoline engine power:43 hp (32.1 kW)
Gasoline engine torque:110 lb-ft (149.2 Nm)
Intake valve clearance:0.014 inches (0.356 mm)
Exhaust valve clearance:0.018 inches (0.457 mm)
Gasoline engine rated RPM:2500
Gasoline engine torque RPM:1300
Gasoline engine bore/stroke:3.86x4.33 inches (98 x 110 mm)
Gasoline engine displacement:152 ci (2.5 L)
Gasoline engine oil capacity:9 qts (8.5 L)
Gasoline engine coolant capacity:12 qts (11.4 L)
Gasoline engine intake valve clearance:0.014 inches (0.356 mm)
Gasoline engine exhaust valve clearance:0.022 inches (0.559 mm)

Dimensions

Width:80 inches (203 cm)
Length:184.2 inches (467 cm)
Weight:7450 lbs (loader-tractor) (3379 kg), 10650 lbs (backhoe) (4830 kg)
Wheelbase:77 inches (195 cm)
Height (ROPS):90.8 inches (230 cm)
Height (exhaust):90 inches (228 cm)

Hydraulics

Type:closed center
Pressure:2350 psi (162.0 bar)
Pump flow:28 gpm (106.0 lpm)

Mechanical

ROPS:Four-post ROPS
Drive:Two-wheel drive
Brakes:Hydraulic wet disc brakes
Final drives:inboard planetary

Production

Type:Industrial tractor
Built in:Dubuque, Iowa, USA
Manufacturer:John Deere
Years produced:1974 - 1983

Attachments

Types:front-end loader, backhoe
Backhoe types:John Deere 9250 Backhoe, John Deere 9250A Backhoe
Loader dump time:1.6s
Backhoe swing arc:180°
Loader dump angle:45°
Loader lower time:2.0s
Loader raise time:3.7s
Loader bucket width:81.125 inches (206 cm)
Backhoe bucket force:7409 lbs (3360 kg)
Loader lift capacity:3300 lbs (1496 kg) full at 500mm
Backhoe digging depth:164 inches (416 cm)
Loader breakout force:5000 lbs (2268 kg)
Loader reach (dumped):28 inches (71 cm)
Backhoe loading height:135 inches (342 cm)
Loader height (at pin):122 inches (309 cm)
Backhoe reach from pivot:209 inches (530 cm)
Backhoe transport height:131 inches (332 cm)
Backhoe dipperstick force:4198 lbs (1904 kg)
Loader clearance (dumped):98 inches (248 cm)
Loader rollback (ground line):20°
Backhoe 2-Foot flat digging depth:163 inches (414 cm)
Backhoe 8-Foot flat digging depth:150 inches (381 cm)

Transmission

Type:power shuttle
Gears:8 forward and reverse
Clutch:254mm disc

Serial Numbers

1974:192081
1975:220016
1976:240922
1977:262177
1978:286784
1979:314264
1980:341670
1981:364685
1982:------
1983:382190