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John Deere 8420T vs John Deere WA-17

Verdict: John Deere 8420T vs John Deere WA-17

The John Deere 8420T and the John Deere WA-17 are both tractors — here is how they stack up on the figures that matter. John Deere 8420T leads on rated power with 284 hp against 280 hp. John Deere WA-17 is the lighter machine (12,827 kg vs 25,950 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 8420T is the newer design (2002 vs 1968). In short: choose the John Deere 8420T for outright pulling power, or the John Deere WA-17 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
John Deere 8420T Tractor
John Deere
71
Fit score
Best match
Clear
John Deere WA-17 Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
284 hp
280 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
WagnerReference
Fourth reverse at 1600 RPM.Reference
Five forward and one reverse with air-assist hi/lo range selection. Shifting on the move possible by double clutching.Reference
Drive
crawlerReference
Steering
electro-hydraulic powerReference
151.4 LReference
Distributor
John DeereReference
Total built
28Reference
Final drives
planetaryReference
Variants
8420
wheeled tractorReference
8420T
crawlerReference
Engine
Engine (gross)
211.8 kWReference
Engine (net)
201.3 kWReference
Engine (max)
234.1 kWReference
Drawbar (tested)
153.5 kWReference
Displacement
8.1 LReference
14.0 LReference
Bore/Stroke
116 x 129 mmReference
140 x 152 mmReference
Rated Power (net)
201.3 kWReference
Rated Power (gross)
211.8 kWReference
Maximum Power (net)
223.7 kWReference
Maximum Power (gross)
234.1 kWReference
Compression
16.5:1Reference
14.9:1Reference
Rated RPM
2200Reference
2100Reference
Idle RPM
900-2300Reference
Operating RPM
1500-2200Reference
Starter volts
12Reference
24Reference
Coolant capacity
34.0 LReference
47.3 LReference
Oil capacity
246.1 LReference
37.9 LReference
Oil change
250 hReference
200 hReference
Max power
153.5 kWReference
Power at rated engine speed
176.5 kWReference
Engine
208.8 kWReference
Drawbar (claimed)
164.1 kWReference
Power
208.8 kWReference
Air cleaner
dryReference
Transmission
Transmission
John Deere PowerShiftReference
Fuller RTO-910Reference
Gears
16 forward and 4 reverseReference
10 forward and 2 reverseReference
Clutch
355.6mm dry discsReference
PTO & Hydraulics
PTO (claimed)
175.2 kWReference
PTO (tested)
201.8 kWReference
Hydraulic system
246.0 LReference
196.8 LReference
Type
full power shiftReference
open centerReference
Capacity
246.0 LReference
196.8 LReference
Pressure
200.0 barReference
Valves
5Reference
2 or 3Reference
Pump flow
113.6 lpmReference
132.5 lpmReference
Total flow
160.9 lpmReference
246.0 lpmReference
Rear Type
III/IIINReference
Rear lift
6885 kgReference
Rear PTO
independentReference
Rear PTO Type
1000 (1-3/4)Reference
Steering flow
113.6 lpmReference
Steering cap.
151.4 LReference
Capacities
Fuel
492.1 LReference
454.2 LReference
Max capacity
14288 kgReference
Dimensions
Wheelbase
304 cmReference
355 cmReference
Weight
25950 to 26380 poundsReference
12827 kgReference
Length
557 cmReference
652 cmReference
Height (cab)
312 cmReference
327 cmReference
Clearance (rear axle)
55 cmReference
Clearance (drawbar)
44 cmReference
Shipping
11770 kgReference
Operating
11965 kgReference
Ballasted
13061 kgReference
Front tire
28.5-26Reference
Rear tire
28.5-26Reference
Ag front
23.1-30Reference
Ag rear
23.1-30Reference
Height
248 cmReference
Ground clearance
45 cmReference
8420T Serial Numbers
Location:
Rear of tractorReference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
150Reference
Batteries
2Reference
2Reference
Battery CCA
925Reference
Battery volts
12Reference
12Reference
Battery AH
205Reference
Battery Group
8DReference
John Deere 8420T Tracks
Width
381 cmReference
281 cmReference
Length on ground
226 cmReference
Area on ground
3.4 m²Reference
Test results
Fuel use
51.9 l/hourReference
Max pull
12352 kgReference
Speeds

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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