Cub Cadet lawn tractors

Cub Cadet 109

The Cub Cadet 109 is a garden tractor produced from 1971 to 1974 by Cub Cadet, a part of International Harvester. It features a 10 hp Kohler K241A 391cc 1-cylinder air-cooled gasoline engine, hydrostatic transmission with infinite forward and reverse speeds, and two-wheel drive. The tractor was built in Louisville, Kentucky, USA. It has mechanical disc brakes, manual steering, and an open operator station. The 109 model supports various mid-mount mower decks and snowblower attachments. It uses a sleeve hitch optionally and has an independent front PTO with a mechanical clutch. The electrical system includes a 12-volt battery, a Delco-Remy generator charging system rated at 15 amps, and negative ground. Dimensions include a 44-inch wheelbase, 69-inch length, and 33-inch width. Tires are 4.80/4.00-8 front and 6-12 rear. The 109 variant is hydrostatic, while the related 108 model uses a gear transmission.
Power10 hp
Founded38/44/50" deck
Model109

Technical Specifications

Detailed specifications and technical data for Cub Cadet 109

Engine
Typegasoline, 1-cylinder, air-cooled
ModelKohler K241A
Power10 hp (7.5 kW)
Idle RPM1000-3800
Fuel tank2 gal (7.6 L)
Point gap0.020 inches (0.508 mm)
Rated RPM3600
SparkplugChampion H-10
Air cleanerdry cartridge
Bore/Stroke3.25x2.875 inches (83 x 73 mm)
Displacement391 cc (23.9 ci)
Oil capacity1.5 qts (1.4 L)
Sparkplug gap0.025 inches (0.635 mm)
Starter volts12
Oil change interval30 h
Intake valve clearance0.010 inches (0.254 mm) Cold
Exhaust valve clearance0.020 inches (0.508 mm) Cold
Variants
108gear
109hydrostatic
Electrical
Groundnegative
Battery volts12
Charging amps15
Charging systemDelco-Remy generator
Mechanical
DriveTwo-wheel drive
BrakesMechanical disc brakes
Steeringmanual
Operator stationOpen operator station
Production
Built inLouisville, Kentucky, USA
Years made1971 - 1974
Attachments
36" Snow blowerCub Cadet QA-36A, 36 inches width (91 cm), front-mount, manual-lift
42" Snow blowerCub Cadet QA-42A, 42 inches width (106 cm), front-mount, manual-lift
38" mid-mount mower deck38 inches (96 cm), 3-blade, Cut height: 1 to 4 inch (2 to 10 cm), Belt: IH490489-R2 (PTO), Belt: 754-3002 (deck)
44" mid-mount mower deck44 inches (111 cm), 3-blade, Cut height: 1 to 4 inch (2 to 10 cm), Belt: IH-59971-C1 (PTO), Belt: 754-3004 (deck)
50" mid-mount mower deck50 inches (127 cm), 3-blade, Cut height: 1 to 4 inch (2 to 10 cm), Belt: IH-59971-C1 (PTO), Belt: 754-3005 (deck)
Transmission
Typehydrostatic
Gearsinfinite forward and reverse
Oil typeIH Hy-Tran
Oil capacity7 qts (6.6 L)
Tractor hitch
Typesleeve hitch (optional)
Serial Numbers
1971400001
1972417643
1973457305
1974495749
Final529811
Serial Number LocationTractor's rear-drive housing, or the left side of the tractor frame (after February 1974)
Dimensions & Tires
Width33 inches (83 cm)
Length69 inches (175 cm)
Rear tire6-12
Wheelbase44 inches (111 cm)
Front tire4.80/4.00-8
Rear tread27 inches (68 cm)
Front tread27 inches (68 cm)
Ground clearance6 inches (15 cm)
Height (steering wheel)41 inches (104 cm)
Power Take-off (PTO)
Clutchmechanical
Front PTOindependent