Compare/Gravely 8199 vs Gravely GMT 900

Gravely 8199 vs Gravely GMT 900

Verdict: Gravely 8199 vs Gravely GMT 900

The Gravely 8199 and the Gravely GMT 900 are both lawn tractors — here is how they stack up on the figures that matter. Gravely GMT 900 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 900 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 900 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

—

Rated RPM

3600Reference

3200Reference

Starter volts

12Reference

Power

—

19.4 kWReference

Compression

—

8:1Reference

Firing order

—

1-3-4-2Reference

Starter

—

electricReference

Transmission

Gears

8 forward and 4 reverseReference

Oil capacity

5.7 LReference

3.1 LReference

Oil type

10W-40 SCReference

—

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

225 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

139 cmReference

Height

112 cmReference

123 cmReference

Shipping weight

424 kgReference

666 kgReference

Ground clearance

17 cmReference

—

Electrical

Ground

negativeReference

Battery volts

12Reference

Battery AH

42Reference

—

Battery Group

BCI 22FReference

—

Gravely GMT 900 attachments

72" Mower deck

Cutting width

—

182 cmReference

Cut height

—

4 to 13 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.