The Gravely 1138 is a lawn tractor model with a rated output of 11 hp, placing it in the middle of its class in terms of power. It was manufactured from 1984 to 1987. The model features a 1-cylinder petrol air-cooled engine driving through two-wheel drive with a 6-speed gearbox. Its listed weight ranges from 477 pounds to 540 pounds.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
11 hp
Weight
477 to 540 pounds
Catalogue coverage
Variants represented
2
Richest spec table
45 rows
Recorded power
11 hp
Recorded weight
216 kg
Transmissions
6-speed gear
Production years
1984-1987
Verified variants
0
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Overview
ManufacturerGravely (a part of Ariens)Reference
Garden tractorReference
Two-wheel driveReference
Manual steeringReference
Disc brakesReference
Open operator station.Reference
Engine
11HP Briggs & Stratton 1-cyl gasolineReference
Fuel tank6.6 LReference
Briggs & StrattonReference
gasolineReference
1-cylinderReference
air-cooled vertical-shaftReference
Power (gross)8.2 kWReference
StarterelectricReference
Starter volts12Reference
Oil capacity1.4 LReference
Transmission
6-speed gearReference
Typebelt-driven gearReference
Gears6 forward and 1 reverseReference
PTO & Hydraulics
Mid PTOindependentReference
ClutchmanualReference
Dimensions
Wheelbase116 cmReference
Weight477 to 540 poundsReference
Front tire13x5.00-6Reference
Rear tire18x8.50-8Reference
Lawn/turf front13x5.00-6Reference
Lawn/turf rear18x8.50-8Reference
Length154 cmReference
Height91 cmReference
Weight216 kgReference
Shipping weight244 kgReference
Gravely 1138 attachments
38" mid-mount mower deckReference
snowblowerReference
bladeReference
Electrical
GroundnegativeReference
Charging amps3Reference
Battery volts12Reference
Attachment overview
38" mid-mount mower deckReference
SnowblowerReference
BladeReference
38" Mower deck
Typemid-mount GravelyReference
Typemanual liftReference
Cutting width96 cmReference
Overall width125 cmReference
Cut height3 to 10 cmReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
