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Wheel Horse C121 Garden Tractor
The
Wheel Horse C121 garden tractor was manufactured from 1978 to 1979. The Wheel
Horse C-121 tractor is powered by 29.1 cu.in (476 cc) Kohler K301AS 4-cycle
1-cylinder air-cooled gasoline engine with a maximum power of 12 hp (9 kW).
The Wheel Horse C121 is fitted with 2 types of transmission. Type 1:
belt-driven gear transmission with 6 forward and 2 reverse gears. Type
2: Sundstrand belt-driven hydrostatic transmission with infinite forward
and reverse gears. Max. travel speed (forward/reverse): 6.3 mph (10.1
km/h) and 3.2 mph (5.1 km/h).
The Wheel Horse C121 was equipped with a manual steering system,
16x6.50-8 front tires, and 23x7.50-12 rear tires. The wheel base is
45.5" (1150 mm). The garden tractor is compatible with the following
attachments: 36" mid-mount 3-blade right-discharge mower deck with
cutting height of 1.25-3.25" (32-82 mm) and manual lift system, 42"
mid-mount 3-blade rear-discharge mower deck with cutting height of
1.5-3.25" (38-82 mm) and mechanical lifting, 48" mid-mount 3-blade
right-discharge mower deck with cutting height of 1.5-4.0" (38-102 mm)
and manual lift, and 42" front-mount snowblower, 42" front-mount blade.
| Engine Model |
Kohler K301AS |
| Engine Type |
4-Cycle 1 cylinder air-cooled gasoline |
| Number of Cylinders |
Single |
| Displacement, cu.in (cc) |
29.1 (476) |
| Engine Bore, in (mm) |
3.37 (85.6) |
| Engine Stroke, in (mm) |
3.25 (82.6) |
| Maximum Horse Power, hp (kW) |
12.0 (9.0) |
| Rated Engine Speed, rpm |
3600 |
| Crankshaft Alignment |
Horizontal |
| Fuel System |
Carburetor |
| Carburetor Model |
Kohler/Walbro |
| Carburetor Type |
Fixed main jet or adjustable main jet |
| Lubrication System |
Splash type |
| Cooling System |
Forced-air |
| Valve Clearance (Intake), in (mm) |
0.0079-0.0099 (0.20-0.25) |
| Valve Clearance (Exhaust), in (mm) |
0.0169-0.0189 (0.43-0.48) |
| Spark Plug Type |
Champion RH10 |
| Spark Plug Size, in (mm) |
0.553 (14.0) |
| Spark Plug Gap, in (mm) |
0.0256 (0.65) |
| Breaker Point Gap (Nominal), in (mm) |
0.020 (0.50) |
| Fuel Tank Capacity, gal (L) |
3.0 (11.5) |
| Oil Capacity, qt (L) |
2.26 (2.21) |
| Electrical System Rating, Volts |
12 |
| Charging System Rating, Amps |
15 |
| Starter Type |
Electric |
| Number of Batteries |
1 |
| Electric Ground |
Negative |
| Front PTO Operational Type |
Independent |
| Front PTO Clutch |
Mechanical |
| Front PTO Speed, rpm |
3200 |
| Transmission Model |
Wheel Horse |
| Transmission Type |
Belt-driven gear |
| Gearbox Type |
6F/2R, Hi-Lo |
| Number of Forward Gears |
6 |
| Number of Reverse Gears |
2 |
| Oil Capacity, qts, (L) |
2.0 (1.9) |
| Maximum Forward Speed, mph (kph) |
5.5 (8.8) |
| Maximum Reverse Speed, mph (kph) |
2.6 (4.2) |
| Transmission Model |
Sundstrand |
| Transmission Type |
Belt-driven hydrostatic |
| Number of Forward Gears |
Infinite |
| Number of Reverse Gears |
Infinite |
| Oil Capacity, qts, (L) |
5.5 (5.2) |
| Maximum Forward Speed, mph (kph) |
6.3 (10.1) |
| Maximum Reverse Speed, mph (kph) |
3.2 (5.1) |
| Drive Wheels |
2WD 4x2 |
| Steering Configuration |
Front steer |
| Steering System |
Manual |
| Front Tire Size |
16x6.50-8 |
| Rear Tire Size |
23x7.50-12 |
| Wheelbase, in (mm) |
45.5 (1150) |
| Length, in (mm) |
65 (1650) |
| Height, in (mm) |
41 (1040) |
| Overall Width, in (mm) |
36 (910) |
| Weight (Gear Transmission), lb (kg) |
600 (273) |
| Weight (Hydro Transmission), lb (kg) |
630 (286) |
| Mower Deck Type |
Mid-mount, right-discharge |
| Number of Blades |
3 |
| Cutting Width, in (mm) |
36 (910) |
| Cutting Height, in (mm) |
1.25-3.25 (32-82) |
| Deck Drive |
Belt |
| Lift System |
Manual |
| Mower Deck Type |
Mid-mount, rear-discharge |
| Number of Blades |
3 |
| Cutting Width, in (mm) |
42 (1060) |
| Cutting Height, in (mm) |
1.50-3.25 (38-82) |
| Deck Drive |
Belt |
| Lift System |
Manual |
| Mower Deck Type |
Mid-mount, right-discharge |
| Number of Blades |
3 |
| Cutting Width, in (mm) |
48 (1215) |
| Cutting Height, in (mm) |
1.5-4.0 (38-102) |
| Deck Drive |
Belt |
| Lift System |
Manual |
| Snowblower Type |
Front-mount |
| Clearing Width, in (mm) |
42 (1060) |
| Lift System |
Manual |
| Blade Type |
Front-mount |
| Width, in (mm) |
42 (1060) |
| Lift System |
Manual |
| Angle |
Manual |
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| Lawn and Garden Tractors Technical Specs |
