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Montgomery Ward Twin 20

Montgomery Ward Twin 20 tractor
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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.
Montgomery Ward Twin 20Simplicitygarden tractorOnan enginehydrostatic transmissionlawn tractor19751976mower decksnowblowerfront-end loaderbackhoe
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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