Lawn Tractor · 1967Unverified
Gravely 424
Gravely 424 — 400 Series · 10 hp. Reference specifications; pending source verification.
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
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.