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Deutz-Allis 1918 Ultima vs Deutz-Allis 1920 Ultima

Verdict: Deutz-Allis 1918 Ultima vs Deutz-Allis 1920 Ultima

The Deutz-Allis 1918 Ultima and the Deutz-Allis 1920 Ultima are both lawn tractors — here is how they stack up on the figures that matter. Deutz-Allis 1920 Ultima leads on rated power with 20 hp against 18 hp. Deutz-Allis 1918 Ultima is the lighter machine (374 kg vs 395 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the Deutz-Allis 1920 Ultima for outright pulling power, or the Deutz-Allis 1918 Ultima if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
Deutz-Allis 1918 Ultima Lawn Tractor
Deutz-Allis
62
Fit score
Best match
Clear
Deutz-Allis 1920 Ultima Lawn Tractor
Deutz-Allis
62
Fit score
Best match
Clear
Rated power
18 hp
20 hp
Confidence
40%
40%
Guide price
Overview
Distributor
Deutz-AllisReference
Deutz-AllisReference
Manufacturer
SimplicityReference
SimplicityReference
air-cooled horizontal-shaft opposed-twinReference
air-cooled horizontal-shaft opposed-twinReference
Final drives
spur gearReference
spur gearReference
Steering
hydrostatic powerReference
Variants
SunStar 18
similar Simplicity modelReference
SunStar 20
similar Simplicity modelReference
Engine
Fuel tank
16.1 LReference
16.1 LReference
Displacement
42.18 ciReference
46.98 ciReference
Bore/Stroke
79 x 70 mmReference
79 x 78 mmReference
Power (gross)
13.4 kWReference
14.9 kWReference
Air cleaner
dual dry elementReference
dry dual elementReference
Compression
6.0:1Reference
6.6:1Reference
Rated RPM
3400Reference
3400Reference
Starter volts
12Reference
12Reference
Oil capacity
5.7 LReference
5.7 LReference
Sparkplug
Champion RV15YCReference
Champion RV15YCReference
Sparkplug gap
0.635 mmReference
0.635 mmReference
Transmission
Transmission
Sundstrand 15Reference
Sundstrand 15Reference
Type
shaft-driven hydrostaticReference
shaft-driven hydrostaticReference
Gears
infinite forward and reverseReference
infinite forward and reverse (2-range)Reference
Oil type
Type F ATFReference
Type F ATFReference
PTO & Hydraulics
Rear Type
0Reference
0Reference
Rear PTO
independentReference
independentReference
Clutch
electricReference
electricReference
Rear PTO Type
3400Reference
3400Reference
Front PTO
independentReference
independentReference
Front PTO Type
pulleyReference
pulleyReference
Dimensions
Wheelbase
129 cmReference
129 cmReference
Weight
374 kgReference
395 kgReference
Front tire
16x6.50-8Reference
16x6.50-8Reference
Rear tire
23x10.5-12Reference
23x10.5-12Reference
Ag front
16-6.50x8Reference
16-6.50x8Reference
Ag rear
23-10.5-12Reference
23-10.5-12Reference
Lawn/turf front
16x6.50-8Reference
16x6.50-8Reference
Lawn/turf rear
23x10.5-12Reference
23x10.5-12Reference
Length
198 cmReference
198 cmReference
Width
97 cmReference
97 cmReference
Height (steering wheel)
119 cmReference
119 cmReference
Deutz-Allis 1918 attachments
Electrical
Ground
negativeReference
negativeReference
Charging system
flywheel alternatorReference
flywheel alternatorReference
Charging amps
15Reference
15Reference
Battery volts
12Reference
12Reference
Attachment overview
Deutz-Allis 1920 attachments

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.

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