The Yanmar YM142 is a lawn tractor with a rated power output of 14 hp, a mid-range figure for its class. This model was produced from 1983 to 1987. Key specifications include a 2-cylinder diesel liquid-cooled engine and a 6-speed gearbox paired with two-wheel drive. Its operating weight is listed at 381 kg.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
14 hp
Weight
381 kg
Catalogue coverage
Variants represented
2
Richest spec table
61 rows
Recorded power
14 hp
Recorded weight
381 kg
Transmissions
6-speed gear
Production years
1983-1987
Verified variants
0
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Overview
ManufacturerYanmarReference
Garden tractorReference
Original price was $5,200 in 1983Reference
Two-wheel driveReference
Manual steeringReference
Mechanical drum brakesReference
Open operator station.Reference
Engine
14HP Yanmar 635cc 2-cyl dieselReference
Fuel tank9.8 LReference
Yanmar 2T75U-NReference
dieselReference
2-cylinderReference
liquid-cooledReference
Displacement38.8 ciReference
Bore/Stroke75 x 72 mmReference
Power10.4 kWReference
Air cleanerdryReference
Rated RPM2600Reference
Idle RPM1300-2825Reference
Starter volts12Reference
Coolant capacity3.5 LReference
Oil capacity2.0 LReference
Oil change100 hReference
Transmission
6-speed gearReference
TypegearReference
Gears6 forward and 3 reverseReference
Oil capacity5.9 LReference
Oil typeJDM303Reference
Oil change300 hReference
Two gears, plus reverse, in three ranges.Reference
PTO & Hydraulics
Typeopen centerReference
Pressure58.8 barReference
Pump flow7.6 lpmReference
Rear Type0Reference
Rear lift (at ends)170 kgReference
Rear lift (at 24"/610mm)125 kgReference
Rear PTOtransmissionReference
Rear PTO Type2000Reference
Front PTOindependentReference
ClutchelectricReference
Dimensions
Wheelbase130 cmReference
Weight381 kgReference
Front tire16x6.50-8Reference
Rear tire23x10.50-12Reference
Lawn/turf front16x6.50-8Reference
Lawn/turf rear23x10.50-12Reference
Length191 cmReference
Width101 cmReference
Height (steering wheel)113 cmReference
Shipping weight381 kgReference
Ground clearance16 cmReference
Yanmar YM142 attachments
48" mid-mount mower deckReference
60" mid-mount mower deckReference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Charging amps15Reference
Battery volts12Reference
Battery AH47Reference
Attachment overview
48" mid-mount mower deckReference
60" mid-mount mower deckReference
Speeds
With 23x10.50-12 rear tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
