Deutz-Allis lawn tractors

Deutz-Allis 1816 Sigma

The Deutz-Allis 1816 Sigma is a garden tractor produced from 1988 to 1991 by Simplicity and distributed by Deutz-Allis. It is part of the Sigma Series and features a 16 hp engine with options from Briggs & Stratton or Kohler. The tractor has a hydrostatic Eaton 850 transmission with infinite forward and reverse gears. It includes a 2.2 gallon fuel tank and runs on 12 volts electrical system with negative ground. The 1816 model has a wheelbase of 48.3 inches, weighs 485 lbs, and uses lawn/turf tires sized 15x6.00-6 front and 23x10.5-12 rear. Attachments include a 48" mid-mount mower deck, snowblower, and blade, suitable for various lawn and garden tasks.

Power16 hp

Founded48" deck

Model1816

View Images

Technical Specifications

Detailed specifications and technical data for Deutz-Allis 1816 Sigma

Engine

Power	16 hp (11.9 kW)
Fuel tank	2.2 gal (8.3 L)
Bore/Stroke	3.44x2.16 inches (87 x 55 mm)
Displacement	655 cc (40 ci)
Kohler Magnum	gasoline, Power: 16 hp (11.9 kW), used on the Deutz-Allis Ultima 1816
Starter volts	12
Engine options	16HP Briggs & Stratton 655cc 2-cyl gasoline, 16HP Kohler gasoline
Briggs & Stratton 402707	gasoline, 2-cylinder, air-cooled

Dimensions

Width	37 inches (93 cm)
Length	67 inches (170 cm)
Weight	485 lbs (219 kg)
Rear tire	23x10.5-12
Wheelbase	48.3 inches (122 cm)
Front tire	15x6.00-6
Height (hood)	32.6 inches (82 cm)
Height (rear)	35.6 inches (90 cm)
Height (steering wheel)	41.4 inches (105 cm)

Electrical

Ground	negative
Battery volts	12

Production

Type	Garden tractor
Series	Sigma Series
Distributor	Deutz-Allis
Manufacturer	Simplicity
Years produced	1988 - 1991

Attachments

Blade	42 inches (106 cm) width front-mount
Snowblower	36 inches (91 cm) width front-mount, 42 inches (106 cm) width front-mount with lift
48" mid-mount mower deck	48 inches (121 cm) cutting width, mid-mount Deutz-Allis

Transmission