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John Deere STX38 Black Deck vs John Deere SX85
Verdict: John Deere STX38 Black Deck vs John Deere SX85
The John Deere STX38 Black Deck and the John Deere SX85 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 13 hp. John Deere SX85 is the lighter machine (165 kg vs 196 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere SX85 is the newer design (1997 vs 1989). 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
71
Fit score
Best match
Clear
John Deere
71
Fit score
Best match
Clear
Rated power
13 hp
13 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
John DeereReference
John DeereReference
air-cooled vertical-shaftReference
air-cooled vertical-shaftReference
Original price
$2,500 (1995 hydrostatic )Reference
$2,299 (2003 )Reference
Steering
—
manualReference
Variants
STX38 Yellow-deck
1988-1993Reference
—
STX38 Black-deck
1994-1997Reference
—
GX85
—
gear driveReference
SX85
—
variator driveReference
Engine
Fuel tank
4.7 LReference
4.7 LReference
Displacement
24.3 ciReference
28.4 ciReference
Bore/Stroke
87 x 67 mmReference
87 x 78 mmReference
Power
9.7 kWReference
—
Compression
8.5:1Reference
—
Starter volts
12Reference
12Reference
Oil capacity
1.9 LReference
1.6 LReference
Power (gross)
—
9.7 kWReference
Air cleaner
—
dry elementReference
Starter
—
electricReference
Transmission
Transmission
Tuff Torq K-50Reference
—
Gears
infinite forward and reverseReference
infinite forward and reverseReference
Oil change
sealed unit, owner service is not recommendedReference
—
PTO & Hydraulics
Mid PTO
independentReference
independentReference
Clutch
electricReference
mechanicalReference
Dimensions
Wheelbase
113 cmReference
106 cmReference
Weight
196 kgReference
165 kgReference
Front tire
13x6.5-6Reference
11x4.00-5Reference
Rear tire
18x8.5-8Reference
16x6.50-8Reference
Lawn/turf front
13x6.5-6Reference
11x4.00-5Reference
Lawn/turf rear
18x8.5-8Reference
16x6.50-8Reference
Length
152 cmReference
154 cmReference
Width
132 cmReference
66 cmReference
Height
98 cmReference
99 cmReference
John Deere STX38 attachments
STX38 Serial Number Location
STX38 Serial Numbers
1994
210001 (STX38 black deck)Reference
—
1995
240001 (STX38 black deck)Reference
—
1996
270001 (STX38 Motorsport)Reference
—
1997
290001 (STX38 Motorsport)Reference
085001Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
flywheel alternatorReference
alternatorReference
Battery volts
12Reference
12Reference
Battery CCA
—
160Reference
38" Mower deck
Type
belt-driven hydrostaticReference
mechanical variable transmissionReference
Cutting width
96 cmReference
76 cmReference
John Deere SX85 attachments
SX85 Serial Numbers
1998
—
095001Reference
1999
—
105001Reference
2000
—
110001Reference
2001
—
115001Reference
2002
—
120001Reference
2003
—
125001Reference
30" Mower deck
Overall width
—
106 cmReference
Cut height
—
2 to 10 cmReference
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.


