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Lawn Tractor · 1967Unverified

Gravely 424

Name: Gravely 424
Brand: Gravely

Gravely 424 — 400 Series · 10 hp. Reference specifications; pending source verification.

The Gravely 424 is a lawn tractor model, rated at 10 hp, and is one of the more compact options in its class. Manufactured from 1967 to 1972, it features a 1-cylinder petrol air-cooled engine, which drives through two-wheel drive with a 4-speed gearbox. The listed weight of the Gravely 424 is 408 kg, and it is designed for tasks of approximately up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

10 hp

Weight

408 kg

Catalogue coverage

Variants represented

Richest spec table

63 rows

Recorded power

10 hp

Recorded weight

408 kg

Transmissions

4-speed gear

Production years

1967-1972

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerGravelyReference

Garden tractorReference

Two-wheel driveReference

SteeringmanualReference

Mechanical band brakesReference

Open operator station.Reference

Engine

10HP Kohler 391cc 1-cyl gasolineReference

10HP Onan 491cc 1-cylReference

Fuel tank18.9 LReference

Kohler K241Reference

gasolineReference

1-cylinderReference

air-cooled horizontal-shaftReference

Displacement23.9 ciReference

Bore/Stroke73 x 83 mmReference

Power (gross)7.5 kWReference

Air cleanersingle dry elementReference

Rated RPM3600Reference

Starter volts12Reference

SparkplugChampion H-10Reference

Sparkplug gap0.635 mmReference

Intake valve clearance0.229 mmReference

Exhaust valve clearance0.457 mmReference

Oil capacity2.4 LReference

Onan NBReference

air-cooledReference

Displacement30 ciReference

Bore/Stroke90 x 76 mmReference

Power7.5 kWReference

Transmission

4-speed gearReference

TransmissionSwiftamatic 8Reference

Typeshaft-driven gearReference

Gears4 forward and reverseReference

Clutchfriction coneReference

Oil capacity4.7 LReference

Oil typeSAE 90W-EPReference

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

PTO & Hydraulics

Typesleeve hitchReference

Dimensions

Wheelbase116 cmReference

Weight408 kgReference

Front tire16-6.50x6Reference

Rear tire23-8.50x12Reference

Lawn/turf front16-6.50x6Reference

Lawn/turf rear23-8.50x12Reference

Length191 cmReference

Width92 cmReference

Height109 cmReference

Shipping weight408 kgReference

Clearance (front axle)25 cmReference

Clearance (rear axle)16 cmReference

Front tread77 cmReference

Rear tread71 cmReference

Gravely 424 attachments

40" mid-mount mower deckReference

50" mid-mount mower deckReference

snowblowerReference

bladeReference

424 Serial Numbers

Location:Ahead of rear axle on left side.Reference

Electrical

GroundnegativeReference

Battery volts12Reference

Attachment overview

40" mid-mount mower deckReference

50" mid-mount mower deckReference

SnowblowerReference

BladeReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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