Compare/Gravely 432 vs Gravely GEM 12.5

Gravely 432 vs Gravely GEM 12.5

Verdict: Gravely 432 vs Gravely GEM 12.5

The Gravely 432 and the Gravely GEM 12.5 are both lawn tractors — here is how they stack up on the figures that matter. Gravely 432 leads on rated power with 14 hp against 13 hp. Gravely GEM 12.5 is the lighter machine (276 kg vs 408 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Gravely 432 holds more fuel (18.9 L vs 17.0 L) for longer stints between fills. Gravely GEM 12.5 is the newer design (1991 vs 1967). In short: choose the Gravely 432 for outright pulling power, or the Gravely GEM 12.5 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

14 hp

13 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

GravelyReference

Gravely (a part of Ariens)Reference

Two-speed shift-on-the-move affects transmission and PTO speed. Additional two-speed range for transmission can be shifted only when stopped. Right-hand directional clutch lever controls forward and reverse.Reference

air-cooled vertical-shaftReference

Steering

manualReference

—

Engine

Fuel tank

18.9 LReference

17.0 LReference

Displacement

31.27 ciReference

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Bore/Stroke

83 x 89 mmReference

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Power (gross)

10.4 kWReference

9.3 kWReference

Air cleaner

single dry elementReference

—

Rated RPM

3600Reference

—

Starter volts

12Reference

Sparkplug

Champion H-10Reference

—

Sparkplug gap

0.635 mmReference

—

Intake valve clearance

0.229 mmReference

—

Exhaust valve clearance

0.457 mmReference

—

Oil capacity

4.7 LReference

5.7 LReference

Starter

—

electricReference

Transmission

Swiftamatic 8Reference

Eaton 850Reference

Gears

4 forward and reverseReference

infinite forward and reverseReference

Clutch

friction coneReference

electricReference

Oil type

SAE 90W-EPReference

—

PTO & Hydraulics

Type

shaft-driven gearReference

belt-driven hydrostaticReference

Mid PTO

—

independentReference

Mid PTO Type

—

pulleyReference

Dimensions

Wheelbase

116 cmReference

121 cmReference

Weight

408 kgReference

276 kgReference

Front tire

16-6.50x6Reference

16x6.50-8Reference

Rear tire

23-8.50x12Reference

23x8.50-12Reference

Lawn/turf front

16-6.50x6Reference

16x6.50-8Reference

Lawn/turf rear

23-8.50x12Reference

23x8.50-12Reference

Length

191 cmReference

172 cmReference

Width

92 cmReference

Height

109 cmReference

—

Shipping weight

408 kgReference

—

Clearance (front axle)

25 cmReference

—

Clearance (rear axle)

16 cmReference

—

Front tread

77 cmReference

—

Rear tread

71 cmReference

—

Height (steering wheel)

—

119 cmReference

Gravely 432 attachments

432 Serial Numbers

Location:

Ahead of rear axle on left side.Reference

—

Electrical

Ground

negativeReference

Battery volts

12Reference

Charging amps

—

15Reference

Attachment overview

Gravely GEM 12.5 attachments

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.