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
| Type | gasoline, 1-cylinder, air-cooled |
|---|---|
| Model | Kohler K241A |
| Power | 10 hp (7.5 kW) |
| Idle RPM | 1000-3800 |
| Fuel tank | 2 gal (7.6 L) |
| Point gap | 0.020 inches (0.508 mm) |
| Rated RPM | 3600 |
| Sparkplug | Champion H-10 |
| Air cleaner | dry cartridge |
| Bore/Stroke | 3.25x2.875 inches (83 x 73 mm) |
| Displacement | 391 cc (23.9 ci) |
| Oil capacity | 1.5 qts (1.4 L) |
| Sparkplug gap | 0.025 inches (0.635 mm) |
| Starter volts | 12 |
| Oil change interval | 30 h |
| Intake valve clearance | 0.010 inches (0.254 mm) Cold |
| Exhaust valve clearance | 0.020 inches (0.508 mm) Cold |
Variants
| 108 | gear |
|---|---|
| 109 | hydrostatic |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging amps | 15 |
| Charging system | Delco-Remy generator |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical disc brakes |
| Steering | manual |
| Operator station | Open operator station |
Production
| Built in | Louisville, Kentucky, USA |
|---|---|
| Years made | 1971 - 1974 |
Attachments
| 36" Snow blower | Cub Cadet QA-36A, 36 inches width (91 cm), front-mount, manual-lift |
|---|---|
| 42" Snow blower | Cub Cadet QA-42A, 42 inches width (106 cm), front-mount, manual-lift |
| 38" mid-mount mower deck | 38 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 deck | 44 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 deck | 50 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
| Type | hydrostatic |
|---|---|
| Gears | infinite forward and reverse |
| Oil type | IH Hy-Tran |
| Oil capacity | 7 qts (6.6 L) |
Tractor hitch
| Type | sleeve hitch (optional) |
|---|
Serial Numbers
| 1971 | 400001 |
|---|---|
| 1972 | 417643 |
| 1973 | 457305 |
| 1974 | 495749 |
| Final | 529811 |
| Serial Number Location | Tractor's rear-drive housing, or the left side of the tractor frame (after February 1974) |
Dimensions & Tires
| Width | 33 inches (83 cm) |
|---|---|
| Length | 69 inches (175 cm) |
| Rear tire | 6-12 |
| Wheelbase | 44 inches (111 cm) |
| Front tire | 4.80/4.00-8 |
| Rear tread | 27 inches (68 cm) |
| Front tread | 27 inches (68 cm) |
| Ground clearance | 6 inches (15 cm) |
| Height (steering wheel) | 41 inches (104 cm) |
Power Take-off (PTO)
| Clutch | mechanical |
|---|---|
| Front PTO | independent |
