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John Deere 320 vs John Deere S100

Verdict: John Deere 320 vs John Deere S100

The John Deere 320 and the John Deere S100 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. John Deere S100 is the lighter machine (188 kg vs 283 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 320 holds more fuel (11.4 L vs 9.1 L) for longer stints between fills. John Deere S100 is the newer design (2021 vs 1991). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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Fit & specs
John Deere 320 Lawn Tractor
John Deere
71
Fit score
Best match
Clear
John Deere S100 Lawn Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
18 hp
18 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
liquid-cooled vertical-shaft V-TwinReference
air-cooled vertical-shaftReference
Engine
Fuel tank
11.4 LReference
9.1 LReference
Displacement
35.7 ciReference
30.5 ciReference
Bore/Stroke
74 x 68 mmReference
90 x 78 mmReference
Power (gross)
13.4 kWReference
Air cleaner
foam precleaner with paper filterReference
dryReference
Rated RPM
3400Reference
Starter volts
12Reference
12Reference
Oil capacity
2.5 LReference
1.4 LReference
Coolant capacity
3.1 LReference
Power
13.0 kWReference
Starter
electricReference
Sparkplug gap
0.762 mmReference
Oil change
sealed unit, owner service is not recommendedReference
Transmission
Transmission
Sundstrand BDU-21Reference
Tuff Torq TL200Reference
Gears
infinite forward and reverseReference
PTO & Hydraulics
Type
belt-driven hydrostaticReference
belt-driven hydrostaticReference
Front PTO
independentReference
Mid PTO
independentReference
Clutch
manualReference
Dimensions
Wheelbase
121 cmReference
Weight
283 kgReference
188 kgReference
Front tire
16x6.50-8Reference
15x6.00-6Reference
Rear tire
23x10.50-12Reference
20x8.00-8Reference
Lawn/turf front
16x6.50-8Reference
15x6.00-6Reference
Lawn/turf rear
23x10.50-12Reference
20x8.00-8Reference
Length
181 cmReference
174 cmReference
Width
99 cmReference
Height
110 cmReference
107 cmReference
John Deere 320 attachments
320 Serial Numbers
1992
M00320X130001Reference
1993
M00320X150001Reference
1994
M00320X160001Reference
Location:
Serial number decal on the rear of the 320, above the drawbar.Reference
Serial number decal above the left rear tire, below the fender deck.Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
Charging amps
17Reference
8Reference
Battery volts
12Reference
12Reference
Battery Group
U1Reference
Attachment overview
48" Mower deck
Cutting width
121 cmReference
106 cmReference
John Deere S100 attachments
S100 Serial Numbers
42" Mower deck
Overall width
140 cmReference
Cut height
2 to 10 cmReference
Capacities
Tow capacity
188 kgReference

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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