Compare/Gravely Pro Master 20-H vs Gravely Pro Master 30-H

Gravely Pro Master 20-H vs Gravely Pro Master 30-H

Verdict: Gravely Pro Master 20-H vs Gravely Pro Master 30-H

The Gravely Pro Master 20-H and the Gravely Pro Master 30-H are both lawn tractors — here is how they stack up on the figures that matter. Gravely Pro Master 30-H leads on rated power with 30 hp against 20 hp. Gravely Pro Master 20-H is the lighter machine (444 kg vs 635 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Gravely Pro Master 30-H holds more fuel (40.1 L vs 20.1 L) for longer stints between fills. In short: choose the Gravely Pro Master 30-H for outright pulling power, or the Gravely Pro Master 20-H 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

30 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Gravely (a part of Ariens)Reference

air-cooledReference

liquid-cooled inlineReference

Engine

Fuel tank

20.1 LReference

40.1 LReference

Displacement

47.7 ciReference

83.1 ciReference

Bore/Stroke

83 x 73 mmReference

82 x 86 mmReference

Power (gross)

14.9 kWReference

22.4 kWReference

Starter

electricReference

Starter volts

12Reference

Oil capacity

5.7 LReference

7.6 LReference

Power

14.9 kWReference

—

Transmission

Eaton 850Reference

Sundstrand 15UReference

Type

hydrostaticReference

Gears

infinite forward and reverseReference

infinite forward and reverse (2-range)Reference

PTO & Hydraulics

Front PTO

independentReference

Clutch

electricReference

discReference

Dimensions

Weight

444 kgReference

208 kgReference

Front tire

18x8.50-8Reference

23x10.5-12Reference

Rear tire

4.80/4.00-8Reference

16x7.5-8Reference

Lawn/turf front

18x8.50-8Reference

23x10.5-12Reference

Lawn/turf rear

4.80/4.00-8Reference

16x7.5-8Reference

Length

266 cmReference

218 cmReference

Height

121 cmReference

139 cmReference

Wheelbase

—

121 cmReference

Width

—

121 cmReference

Gravely Pro Master 20-H attachments

Electrical

Ground

negativeReference

Charging amps

20 (Onan)Reference

40Reference

Battery volts

12Reference

Attachment overview

Gravely Pro Master 30-H attachments

72" Mower deck

Cutting width

—

182 cmReference

Cut height

—

3 to 11 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.