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MTD 840 vs MTD 998
Verdict: MTD 840 vs MTD 998
The MTD 840 and the MTD 998 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. MTD 998 is the newer design (1993 vs 1990). 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
MTD
62
Fit score
Best match
Clear
MTD
62
Fit score
Best match
Clear
Rated power
18 hp
18 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
MTDReference
MTDReference
Three-range gearbox (low, high reverse) and a variable-speed control with seven detent positions. Tractor must be stopped, and clutch/brake used, to shift ranges.Reference
air-cooled horizontal-shaft V-TwinReference
Engine
Fuel tank
9.5 LReference
—
Displacement
42.33 ciReference
34.75 ciReference
Bore/Stroke
87 x 58 mmReference
72 x 70 mmReference
Power (gross)
13.4 kWReference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Power
—
13.4 kWReference
Transmission
Transmission
MTD TransmaticReference
EatonReference
Gears
14 forward and 7 reverseReference
infinite forward and reverse (2-range)Reference
Oil capacity
0.9 LReference
—
Oil type
Shell DarinaReference
—
Oil change
sealed unit, owner service is not recommendedReference
—
PTO & Hydraulics
Type
belt-driven CVTReference
shaft-driven hydrostaticReference
Mid PTO
independentReference
independentReference
Clutch
manualReference
manualReference
Mid PTO Type
pulleyReference
—
Rear Type
—
0Reference
Dimensions
Weight
330 kgReference
—
Front tire
16.00x6.50Reference
—
Rear tire
23.00x9.50Reference
—
Lawn/turf front
16.00x6.50Reference
—
Lawn/turf rear
23.00x9.50Reference
—
MTD 840 attachments
840 Serial Numbers
Location:
Serial number decal below the seat.Reference
—
Electrical
Ground
negativeReference
negativeReference
Battery CCA
275Reference
—
Battery volts
12Reference
12Reference
Attachment overview
46" Mower deck
Cutting width
116 cmReference
127 cmReference
MTD 998 attachments
50" 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.