Bush Hog

HD-12

Lawn tractor · 1967–1968 · 12 hp

The Bush Hog HD-12 is a lawn tractor manufactured from 1967 to 1968. It features a Wisconsin S-12D engine, and manual steering. The transmission is a shaft-driven hydrostatic type with infinite forward and reverse.

Engine

EngineWisconsin S-12D
Fuel Typegasoline
Cylinders1
Coolingair-cooled horizontal-shaft
Displacement28.86 ci (473 cc)
Bore3.5 in (89 mm)
Stroke3 in (76 mm)
Power Rated12 hp (8.9 kW)
Starter Volts12
Starter Typeelectric
Oil Capacity2 qts (1.9 L)
ManufacturerWisconsin
Sparkplug Gap0.03 in (0.76 mm)
Oil Change Interval Hours25

Transmission

Transmission Typeshaft-driven hydrostatic
Gearsinfinite forward and reverse
Oil Capacity4 qts (3.8 L)
Oil TypeType A ATF
Available Optionshydrostatic

PTO

Mid Typeindependent

Dimensions

Length81 in (205 cm)
Width41 in (104 cm)
Wheelbase54 in (137 cm)
Front Tread31 in (78 cm)
Rear Tread33 in (83 cm)

Tires & Tracks

Front Ag4.80/4.00-8
Rear Ag27x8.50-15

Fuel

Capacity2 gal (7.6 L)

Steering

Typemanual