Lawn Tractor · 1975Unverified
Montgomery Ward Twin 20
Montgomery Ward Twin 20 — Garden tractor · 20 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
20 hp
Weight
589 kg
Hover a source tag to verify
Overview
DistributorMontgomery WardReference
ManufacturerSimplicityReference
Garden tractorReference
Built in Port Washington, Wisconsin, USAReference
Original price was $3,650 in 1975Reference
The Montgomery Ward Twin 20 carried model codes SIM33300, SIM33301, SIM33302 and SIM33303 depending on tire options.Reference
Two-wheel driveReference
Manual steeringReference
Disc brakesReference
Open operator station.Reference
Variants
9020similar Simplicity modelReference
720similar Allis Chalmers modelReference
Engine
19.9HP Onan 816cc 2-cyl gasolineReference
Fuel tank14.4 LReference
Onan CCKBReference
gasolineReference
2-cylinderReference
air-cooled horizontal-shaft opposed-twinReference
Displacement49.8 ciReference
Bore/Stroke83 x 76 mmReference
Power (gross)14.8 kWReference
Air cleanerpaper elementReference
Compression7:1Reference
Rated RPM3600Reference
Idle RPM1300-3850Reference
StarterelectricReference
Starter volts12Reference
SparkplugChampion H-8Reference
SparkplugAutolite AL5Reference
Sparkplug gap0.635 mmReference
Point gap0.508 mmReference
Intake valve clearance0.178 mmReference
Exhaust valve clearance0.406 mmReference
Oil capacity3.8 LReference
Oil change100 hReference
Transmission
hydrostaticReference
TransmissionSundstrandReference
TypehydrostaticReference
Gearsinfinite forward and reverse (3-range)Reference
Oil capacity5.7 LReference
Oil typeATF AATF FDextronReference
Oil typeATF AReference
Oil typeATF FReference
Oil typeDextronReference
PTO & Hydraulics
Pressure34.5 barReference
Front valves1Reference
Total flow9.5 lpmReference
Rear Type0Reference
Rear PTOindependentReference
ClutchelectricReference
Rear PTO Type2000Reference
Front PTOindependentReference
Front PTO Type3600Reference
Dimensions
Wheelbase142 cmReference
Weight589 kgReference
Front tire20x8.00-10Reference
Rear tire29x12.00-15Reference
Weight127 kgReference
Weight272 kgReference
Lawn/turf front20x8.00-10Reference
Lawn/turf rear29x12.00-15Reference
Length210 cmReference
Width142 cmReference
Height (steering wheel)121 cmReference
Shipping weight589 kgReference
Clearance (front axle)38 cmReference
Clearance (drawbar)33 cmReference
Montgomery Ward Twin 20 attachments
60" mid-mount mower deckReference
snowblowerReference
bladeReference
front-end loaderReference
backhoeReference
Electrical
GroundnegativeReference
Charging systemflywheel alternatorReference
Charging amps20Reference
Charging volts12Reference
Battery volts12Reference
Battery AH45Reference
Attachment overview
60" mid-mount mower deckReference
SnowblowerReference
BladeReference
Front-end loaderReference
BackhoeReference
Advertised attachments for the Montgomery Ward Twin 20 included a 48-inch PTO-driven tiller and a Danco-built 48-inch rear rotary mower.Reference
60" Mower deck
Typemid-mount Montgomery Ward 33305Reference
Type3-bladeReference
Cutting width152 cmReference
Montgomery Ward 33319 Backhoe
Backhoe typeMontgomery Ward 33319 BackhoeReference
Digging depth182 cmReference
Reach from pivot274 cmReference
Swing Arc135°Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.