Compare/Gravely 8199 vs Gravely GMT 9000

Gravely 8199 vs Gravely GMT 9000

Verdict: Gravely 8199 vs Gravely GMT 9000

The Gravely 8199 and the Gravely GMT 9000 are both lawn tractors — here is how they stack up on the figures that matter. Gravely GMT 9000 leads on rated power with 26 hp against 20 hp. Gravely 8199 is the lighter machine (424 kg vs 666 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Gravely GMT 9000 holds more fuel (26.5 L vs 20.1 L) for longer stints between fills. Gravely 8199 is the newer design (1980 vs 1977). In short: choose the Gravely GMT 9000 for outright pulling power, or the Gravely 8199 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Gravely

Fit score

Best match

Clear

Gravely

Fit score

Best match

Clear

Rated power

20 hp

26 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

GravelyReference

Four gears (1-4) in two ranges (low-high) with forward/reverse clutches. The directional clutch must be in neutral to shift gears or ranges.Reference

liquid-cooledReference

Engine

Fuel tank

20.1 LReference

26.5 LReference

Displacement

47.7 ciReference

51.6 ciReference

Bore/Stroke

83 x 73 mmReference

58 x 80 mmReference

Power (gross)

14.8 kWReference

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Rated RPM

3600Reference

4000Reference

Starter volts

12Reference

Power

—

19.4 kWReference

Compression

—

8:1Reference

Firing order

—

1-3-4-2Reference

Sparkplug gap

—

0.635 mmReference

Point gap

—

0.457 mmReference

Intake valve clearance

—

0.127 mmReference

Exhaust valve clearance

—

0.203 mmReference

Transmission

Gears

8 forward and 4 reverseReference

Oil capacity

5.7 LReference

9.5 LReference

Oil type

10W-40 SCReference

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PTO & Hydraulics

Type

shaft-driven gearReference

Pressure

82.7 barReference

—

Pump flow

6.4 lpmReference

—

Mid PTO

independentReference

—

Clutch

mechanicalReference

—

Mid PTO Type

1000Reference

1893Reference

Rear Type

—

IReference

Rear PTO

—

independentReference

Rear PTO Type

—

540 (1.375)Reference

Dimensions

Wheelbase

132 cmReference

160 cmReference

Weight

424 kgReference

666 kgReference

Front tire

16x7.50-8Reference

20x8.00-10Reference

Rear tire

23x10.50-12Reference

29x12.00-15Reference

Lawn/turf front

16x7.50-8Reference

20x8.00-10Reference

Lawn/turf rear

23x10.50-12Reference

29x12.00-15Reference

Length

210 cmReference

229 cmReference

Width

109 cmReference

129 cmReference

Height

112 cmReference

111 cmReference

Shipping weight

424 kgReference

666 kgReference

Ground clearance

17 cmReference

—

Ag front

—

4.00-12Reference

Ag rear

—

9.5-16Reference

Front tread

—

93 cmReference

Rear tread

—

99 to 109 cmReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Battery AH

42Reference

—

Battery Group

BCI 22FReference

—

Gravely GMT 9000 attachments

Attachment overview

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.