Search
John Deere Z645 vs John Deere Z665
Verdict: John Deere Z645 vs John Deere Z665
The John Deere Z645 and the John Deere Z665 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 27 hp. John Deere Z645 is the lighter machine (340 kg vs 347 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
Tune the fit score
Tell us about your operation
Fit & specs
John Deere
71
Fit score
Best match
Clear
John Deere
71
Fit score
Best match
Clear
Rated power
27 hp
27 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
John DeereReference
John DeereReference
air-cooled vertical-shaft V-TwinReference
air-cooled vertical-shaft V-TwinReference
Engine
Fuel tank
13.2 LReference
13.2 LReference
Displacement
44.2 ciReference
44.2 ciReference
Bore/Stroke
79 x 73 mmReference
79 x 73 mmReference
Power
20.1 kWReference
20.1 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Transmission
Transmission
Tuff Torq TZT 7-DReference
Tuff Torq TZT 7-DReference
Gears
infinite forward and reverseReference
infinite forward and reverseReference
PTO & Hydraulics
Mid PTO
independentReference
independentReference
Clutch
electricReference
electricReference
Dimensions
Wheelbase
121 cmReference
124 cmReference
Weight
340 kgReference
347 kgReference
Front tire
13x6.5-6Reference
13x6.5-6Reference
Rear tire
23x10.50-12Reference
23x10.50-12Reference
Lawn/turf front
13x6.5-6Reference
13x6.5-6Reference
Lawn/turf rear
23x10.50-12Reference
23x10.50-12Reference
Length
189 cmReference
192 cmReference
Height
115 cmReference
115 cmReference
John Deere Z645 attachments
Electrical
Ground
negativeReference
negativeReference
Battery CCA
195Reference
195Reference
Battery volts
12Reference
12Reference
48" Mower deck
Type
hydrostaticReference
hydrostaticReference
Cutting width
121 cmReference
152 cmReference
Cut height
2 to 10 cmReference
2 to 10 cmReference
John Deere Z665 attachments
60" Mower deck
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.