Porsche Junior

The Porsche Junior is a tractor produced by Porsche. It is equipped with a 53.4 ci 0.9 L engine. The listed engine power is Diesel (listed): 14 hp / 10.4 kW; Diesel (listed): 15 hp / 11.2 kW. Transmission: ZF. Operating weight: 2115 to 2575 pounds.

Overview

	1957 - 1963 Utility tractor

Production
Manufacturer	Porsche
Utility tractor
Built in Germany

Porsche Junior Transmission
6-speed gear
Transmission details ...

Porsche Junior Power
Engine	15 hp 11.2 kW
Drawbar (tested)	9.28 hp 6.9 kW
PTO (tested)	11.29 hp 8.4 kW
Performance test details ...

Mechanical
Two-wheel drive
Manual steering
Drum brakes
Open operator station.

Power Take-off (PTO)
Rear PTO Type	540
Engine RPM	540@2000

Dimensions & Tires
Wheelbase	71.9 inches 182 cm
Weight	2115 to 2575 pounds
Front tire	4.00-16
Rear tire	8-24
Full dimensions and tires ...

Belt Pulley
Diameter	7 inches 17 cm
Width	4 inches 10 cm
RPM	1833

References
Junior published in TD 98/1/11/57/150, by Porsche
Junior one-plow-tractor published in PD 179/7/60/400, by Porsche
Junior V published by Porsche

Engine

Engine options
Porsche 0.8L 1-cyl diesel
Porsche 0.9L 1-cyl diesel

Engine Detail — 50.2 ci / 0.8 L Diesel

Manufacturer	Porsche 108
Fuel Type	Diesel
Configuration	1-cylinder, air-cooled
Displacement	50.2 ci 0.8 L
Bore/Stroke	3.74x4.56 inches 95 x 116 mm
Power	14 hp 10.4 kW
Rated RPM	2250
Starter	electric
Starter volts	12

Engine Detail — 53.4 ci / 0.9 L Diesel

Manufacturer	Porsche 109
Fuel Type	Diesel
Configuration	1-cylinder, air-cooled
Displacement	53.4 ci 0.9 L
Bore/Stroke	3.86x4.56 inches 98 x 116 mm
Power	15 hp 11.2 kW
Rated RPM	2250

Transmission

Transmission — ZF

Transmission	ZF
Type	gear
Gears	6 forward and 2 reverse
Clutch	dry disc

Dimensions

Porsche Junior Tires
Ag front	4.00-16
	4.50-16
Ag rear	8-24
	9-24

Dimensions
Wheelbase	71.9 inches 182 cm
Length	112 inches 284 cm
Width	57.5 inches 146 cm
Height	60.4 inches 153 cm
Ground clearance	14.6 inches 37 cm
Front tread	50 to 65 inches 127 to 165 cm
Rear tread	50 to 65 inches 127 to 165 cm

Porsche Junior Weight
Shipping	2115 lbs 959 kg
Operating	2575 lbs 1168 kg
Ballasted	3381 lbs 1533 kg

Tests

Nebraska Tractor Test 699
108 diesel 6-speed 2WD May 21 - June 9, 1959 Link: Nebraska Tractor Test 699 file
PTO performance
Power at rated engine speed	11.29 hp 8.4 kW
Fuel use	0.9 gal/hour 3.4 l/hour
Power at rated PTO speed	10.46 hp 7.8 kW
Fuel use	0.8 gal/hour 3.0 l/hour
Drawbar performance
Max power	9.28 hp 6.9 kW
Fuel use	0.8 gal/hour 3.0 l/hour
Gear 4 used for power test.
Max pull	2482 lbs 1125 kg
Gear 1 used for pull test.

Photos

Porsche Junior

Porsche Junior