Montgomery Ward lawn tractors
Montgomery Ward Twin 20
The Montgomery Ward Twin 20 is a garden tractor distributed by Montgomery Ward and built by Simplicity in Port Washington, Wisconsin, USA from 1975 to 1976. It features a 19.9 hp Onan 816cc 2-cylinder gasoline engine, hydrostatic transmission, and two-wheel drive with manual steering and disc brakes. The tractor has an open operator station and offers various attachments including a 60" mid-mount mower deck, snowblower, blade, front-end loader, and backhoe. It was originally priced at $3,650 in 1975 and carries model codes SIM33300, SIM33301, SIM33302, and SIM33303 depending on tire options.
Power-
Founded-
ModelTwin 20
Technical Specifications
Detailed specifications and technical data for Montgomery Ward Twin 20
Engine
| Type | gasoline |
|---|---|
| Model | Onan CCKB |
| Cooling | air-cooled horizontal-shaft opposed-twin |
| Starter | electric |
| Idle RPM | 1300-3850 |
| Cylinders | 2-cylinder |
| Fuel tank | 3.8 gal (14.4 L) |
| Point gap | 0.020 inches (0.508 mm) |
| Rated RPM | 3600 |
| Sparkplug | Champion H-8, Autolite AL5 |
| Air cleaner | paper element |
| Bore/Stroke | 3.25x3.00 inches (83 x 76 mm) |
| Compression | 7:1 |
| Displacement | 816 cc (49.8 ci) |
| Oil capacity | 4 qts (3.8 L) |
| Power (gross) | 19.9 hp (14.8 kW) |
| Sparkplug gap | 0.025 inches (0.635 mm) |
| Starter volts | 12 |
| Oil change interval | 100 h |
| Intake valve clearance | 0.007 inches (cold) (0.178 mm) |
| Exhaust valve clearance | 0.016 inches (cold) (0.406 mm) |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 45 |
| Battery volts | 12 |
| Charging amps | 20 |
| Charging volts | 12 |
| Charging system | flywheel alternator |
Hydraulics
| Pressure | 500 psi (34.5 bar) |
|---|---|
| Total flow | 2.5 gpm (9.5 lpm) |
| Front valves | 1 |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Disc brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Built in | Port Washington, Wisconsin, USA |
|---|---|
| Distributor | Montgomery Ward |
| Model codes | SIM33300, SIM33301, SIM33302, SIM33303 depending on tire options |
| Manufacturer | Simplicity |
| Original price | $3,650 in 1975 |
| Years produced | 1975 - 1976 |
Attachments
| Blade | 60 inches width, front-mount, 60" Blade Montgomery Ward 33315, 225 lbs (102 kg), hydraulic-lift |
|---|---|
| Backhoe | Montgomery Ward 33319 Backhoe, weight 600 lbs (272 kg), digging depth 72 inches (182 cm), reach from pivot 108 inches (274 cm), swing arc 135° |
| Snowblower | 52 inches width, front-mount, 52" Snow blower Montgomery Ward 33317, 340 lbs (154 kg) |
| Front-end loader | 33313 Loader, 400 lbs lift (full at pin) (181 kg), 600 lbs breakout (272 kg), 18.75 inches reach (dumped) (47 cm), 50 inches reach (ground) (127 cm), 5° rollback, 89.5 inches height (at pin) (227 cm), 69 inches clearance (dumped) (175 cm), weight: 600 lbs (272 kg), Bucket width: 42.5 inches (107 cm), Bucket capacity: 0.3 cu yd (0.2 cu m) |
| 60" mid-mount mower deck | 60 inches cutting width, mid-mount Montgomery Ward 33305, 3-blade, 280 lbs (127 kg) |
Transmission
| Type | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (3-range) |
| Oil type | ATF A, ATF F, Dextron |
| Manufacturer | Sundstrand |
| Oil capacity | 6 qts (5.7 L) |
Tractor hitch
| Rear Type | 0 |
|---|
Dimensions & Tires
| Width | 56 inches (142 cm) |
|---|---|
| Length | 83 inches (210 cm) |
| Rear tire | 29x12.00-15 |
| Wheelbase | 56 inches (142 cm) |
| Front tire | 20x8.00-10 |
| Shipping weight | 1300 lbs (589 kg) |
| Clearance (drawbar) | 13 inches (33 cm) |
| Clearance (front axle) | 15 inches (38 cm) |
| Height (steering wheel) | 48 inches (121 cm) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Front PTO | independent |
| Rear PTO Type | 2000 |
| Front PTO Type | 3600 |
| Rear PTO Clutch | electric |
| Front PTO Clutch | electric |
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