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Wheel Horse 857 Garden Tractor
The
Wheel Horse 857 is a 2WD garden tractor. This model was manufactured from 1967
to 1968. The Wheel Horse 857 driveline includes a Kohler K181S 4-stroke single
cylinder horizontal shaft air-cooled gasoline engine and Wheel Horse Uni-Drive
belt-driven gear transmission with 3 forward and 1 reverse gears.
A 18.6 cu.in (308 cc) engine has a cylinder bore of 2.94" (74.6 mm),
piston stroke of 2.75" (69.9 mm), and maximum power of 8 hp (6 kW). The
maximum travel speed (forward/reverse): 5.5 mph (8.8 km/h) and 2.5 mph
(4.1 km/h).
The Wheel Horse 857 tractor is equipped with a manual steering system,
16x5.50-8 front tires, and 23x8.50-12 rear tires. The tractor is
compatible with the following attachments: 36" mid-mount 2-blade RM-367
mower deck with manual lift, 32" front-mount single-stage ST-326
snowblower, and 42" front blade.
| Engine Model |
Kohler K181S |
| Engine Type |
4-stroke single cylinder air-cooled gasoline |
| Number of Cylinders |
1 |
| Displacement, cu.in (cc) |
18.6 (308) |
| Engine Bore, in (mm) |
2.94 (74.6) |
| Engine Stroke, in (mm) |
2.75 (69.9) |
| Maximum Horse Power, hp (kW) |
8.0 (6.0) |
| Rated Engine Speed, rpm |
3600 |
| Fuel System |
Carburetor |
| Carburetor Model |
Kohler/Walbro |
| Carburetor Type |
Fixed main jet or adjustable main jet |
| Lubrication System |
Splash type |
| Cooling System |
Forced-air |
| Ignition System |
Magneto or battery |
| Spark Plug Type |
Champion RJ8C |
| Spark Plug Gap, in (mm) |
0.0256 (0.65) |
| Intake Valve Clearance, in (mm) |
0.006-0.008 (0.15-0.20) |
| Exhaust Valve Clearance, in (mm) |
0.017-0.019 (0.43-0.48) |
| Fuel Tank Capacity, gal (L) |
1.5 (5.7) |
| Oil Capacity, qt (L) |
1.3 (1.2) |
| Electrical System Rating, Volts |
12 |
| Starter Type |
Electric |
| Number of Batteries |
1 |
| Electric Ground |
Negative |
| Transmission Model |
Wheel Horse Uni-Drive |
| Transmission Type |
Belt-driven gear |
| Gearbox Type |
3F/1R |
| Number of Forward Gears |
3 |
| Number of Reverse Gears |
1 |
| Oil Capacity, qts, (L) |
2.0 (1.9) |
| Maximum Forward Speed, mph (kph) |
5.5 (8.8) |
| Maximum Reverse Speed, mph (kph) |
2.5 (4.1) |
| Drive Wheels |
2WD 4x2 |
| Steering Configuration |
Front steer |
| Steering System |
Manual |
| Front Tire Size |
16x5.50-8 |
| Rear Tire Size |
23x8.50-12 |
| Wheelbase, in (mm) |
41.3 (1045) |
| Length, in (mm) |
61 (1545) |
| Height (Hood), in (mm) |
33.5 (850) |
| Height (Steering Wheel), in (mm) |
37 (935) |
| Overall Width, in (mm) |
34 (860) |
| Ground Clearance, in (mm) |
7.3 (180) |
| Weight, lb (kg) |
430 (195) |
| Mower Deck Model |
RM-367 |
| Mower Deck Type |
Mid-mount |
| Number of Blades |
2 |
| Cutting Width, in (mm) |
36 (910) |
| Cutting Height, in (mm) |
1.0-3.75 (25-95) |
| Deck Drive System |
Belt driven |
| Lift System |
Mechanical |
| Snowblower Model |
ST-326 |
| Snowblower Type |
Front-mount |
| Clearing Width, in (mm) |
32 (810) |
| Lift System |
Mechanical |
| Blade Model |
BD-4267 |
| Blade Type |
Front-mount |
| Width, in (mm) |
42 (1060) |
| Lift System |
Mechanical |
| Angle |
Manual |
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| Lawn and Garden Tractors Technical Specs |
