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Allis Chalmers 620 vs Allis Chalmers T-818

Verdict: Allis Chalmers 620 vs Allis Chalmers T-818

The Allis Chalmers 620 and the Allis Chalmers T-818 are both lawn tractors — here is how they stack up on the figures that matter. Allis Chalmers 620 leads on rated power with 20 hp against 18 hp. Allis Chalmers T-818 is the lighter machine (219 kg vs 589 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers T-818 is the newer design (1982 vs 1973). In short: choose the Allis Chalmers 620 for outright pulling power, or the Allis Chalmers T-818 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
Allis Chalmers 620 Lawn Tractor
Allis Chalmers
62
Fit score
Best match
Clear
Allis Chalmers T-818 Lawn Tractor
Allis Chalmers
62
Fit score
Best match
Clear
Rated power
20 hp
18 hp
Confidence
40%
40%
Guide price
Overview
Distributor
Allis ChalmersReference
Manufacturer
SundstrandReference
Allis ChalmersReference
air-cooled horizontal-shaft opposed-twinReference
Three-speed gear transmission with variable speed lever.Reference
Variants
4041
similar Simplicity modelReference
Engine
Displacement
49.8 ciReference
42.33 ciReference
Bore/Stroke
83 x 76 mmReference
87 x 58 mmReference
Power (gross)
14.5 kWReference
13.4 kWReference
Air cleaner
paper elementReference
Compression
7:1Reference
Rated RPM
3600Reference
Starter volts
12Reference
12Reference
Oil capacity
3.3 LReference
1.1 LReference
Fuel tank
8.3 LReference
Starter
electricReference
Transmission
Gears
infinite forward and reverse (3-range)Reference
3 forward and 1 reverseReference
Transmission
Vari-ShiftReference
Capacities
Fuel
14.4 LReference
PTO & Hydraulics
Hydraulic system
4.7 LReference
Capacity
4.7 LReference
Pressure
34.5 barReference
Pump flow
8.5 lpmReference
Rear Type
0Reference
Rear PTO
independentReference
Clutch
electricReference
mechanical idler pulleyReference
Rear PTO Type
2000Reference
Front PTO
independentReference
Front PTO Type
3600Reference
Dimensions
Wheelbase
142 cmReference
122 cmReference
Weight
589 kgReference
219 kgReference
Front tire
20x8-10Reference
15x6.00-6Reference
Rear tire
29x12.50-15Reference
23x10.50-12Reference
Ag front
4.00x12Reference
Ag rear
8x16Reference
Lawn/turf front
20x8-10Reference
15x6.00-6Reference
Lawn/turf rear
29x12.50-15Reference
23x10.50-12Reference
Length
210 cmReference
170 cmReference
Width
121 cmReference
96 cmReference
Height
109 cmReference
Shipping weight
589 kgReference
Ground clearance
38 cmReference
Height (steering wheel)
105 cmReference
Height (hood)
91 cmReference
Allis Chalmers 620 attachments
620 Serial Numbers
Location:
Serial number decal on the right side of the tractor frame, above the foot rest.Reference
Electrical
Ground
negativeReference
negativeReference
Charging amps
20Reference
Battery volts
12Reference
12Reference
Attachment overview
60" Mower deck
Type
hydrostaticReference
belt-driven gearReference
Cutting width
152 cmReference
Cut height
4 to 7 cmReference
Allis Chalmers T-818 attachments
T-818 Serial Number Location

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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