Bolens lawn tractors
Bolens HT-20D
The Bolens HT-20D is a garden tractor produced from 1980 to 1981 as part of the Large Frame Series. It features a 19.9 horsepower Wisconsin WD2-860 863cc 2-cylinder air-cooled diesel engine, hydrostatic Eaton 11 transmission with infinite forward and reverse speeds, and two-wheel drive with manual steering and disc brakes. The tractor has an open operator station and offers an independent mid PTO with a manual idler clutch. Dimensions include a 52 inch wheelbase, 76 inch length, 38 inch width, 45 inch height, and a weight of 1110 lbs. It rides on 18x8.50-8 front tires and 26x12-12 rear tires. Electrical system includes a 12 volt battery with a 9 amp alternator (35 amp optional). Attachments available include a 54 inch mid-mount mower deck, front-mount snowblowers (42 inch single-stage and 48 inch two-stage), and a 54 inch front-mount hydraulic-lift blade.
Power-
Founded-
ModelHT-20D
Technical Specifications
Detailed specifications and technical data for Bolens HT-20D
Engine
| Type | diesel |
|---|---|
| Model | Wisconsin WD2-860 |
| Notes | The Wisconsin WD2 engine is a rebranded Ducati 2IS22. The engine horsepower was derated in the United States to avoid testing at Nebraska. Export versions were rated at 22 horsepower. |
| Power | 19.9 hp (14.8 kW) |
| Cooling | air-cooled horizontal-shaft inline |
| Starter | electric |
| Cylinders | 2-cylinder |
| Fuel tank | 5 gal (18.9 L) |
| Rated RPM | 3000 |
| Bore/Stroke | 3.307x3.071 inches (84 x 78 mm) |
| Displacement | 863 cc (52.7 ci) |
| Oil capacity | 2.7 qts (2.6 L) |
| Starter volts | 12 |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging amps | 9 (35 optional) |
| Charging system | alternator |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Disc brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Years | 1980 - 1981 |
|---|---|
| Series | Large Frame Series |
| Built in | Port Washington, Wisconsin, USA |
| Category | Garden tractor |
Attachments
| Blade | 54" front-mount hydraulic-lift (Bolens 18054) |
|---|---|
| Snowblower | 42" single-stage front-mount (Bolens 18103), 48" two-stage front-mount (Bolens 18148) |
| 54" mid-mount mower deck | 54 inches (137 cm) cutting width, mid-mount Bolens, 3-blade |
Transmission
| Type | shaft-driven hydrostatic |
|---|---|
| Gears | infinite forward and reverse (2-range) |
| Model | Eaton 11 |
| General | hydrostatic |
Tractor hitch
| Rear Type | 0 Optional |
|---|
Dimensions & Tires
| Width | 38 inches (96 cm) |
|---|---|
| Height | 45 inches (114 cm) |
| Length | 76 inches (193 cm) |
| Weight | 1110 lbs (503 kg) |
| Rear tire | 26x12-12 |
| Wheelbase | 52 inches (132 cm) |
| Front tire | 18x8.50-8 |
| Ground clearance | 8.5 inches (21 cm) |
Power Take-off (PTO)
| Clutch | manual idler |
|---|---|
| Mid PTO | independent |