Leyland 285
The Leyland 285 is a tractor produced by Leyland. It is equipped with a 344.7 ci 5.6 L engine. The listed engine power is Diesel (listed): 85 hp / 63.4 kW. Transmission: 9 forward and 3 reverse. Operating weight: 8000 lbs 3628 kg.
Engine Power
Diesel (listed): 85 hp / 63.4 kW
Fuel & Capacities
Diesel
Transmission
9 forward and 3 reverse
Operating Weight
8000 lbs
3628 kg
Overview
 | 1972 - 1980
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | Leyland |
Row-Crop tractor | |
Built in Bathgate, Scotland | |
Variants | |
|---|---|
285 | 2WD |
485 | 4WD |
Leyland 285 Engine | |
|---|---|
Leyland 5.6L 6-cyl diesel | |
Engine details ...  |
Leyland 285 Power | |
|---|---|
Engine | 85 hp
63.4 kW |
PTO (claimed) | 75 hp
55.9 kW |
Mechanical | |
|---|---|
Two-wheel drive | |
Final drives | planetary |
Differential lock | mechanical rear |
Power steering | |
Hydraulic wet disc brakes | |
Cab standard. Insulated cab with heat after 1976. Open station available. | |
Hydraulics | |
|---|---|
Type | open center |
Pressure | 2600 psi
179.3 bar |
Pump flow | 11 gpm
41.6 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Control | position and draft control |
Rear lift (at ends) | 6000 lbs
2721 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
Weight | 8000 lbs
3628 kg |
Front tire | 7.50x16 |
Rear tire | 14.00x34 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 34 |
Battery volts | 12 |
Battery AH | 128 |
Engine
Engine Detail — 344.7 ci / 5.6 L Diesel
Manufacturer | Leyland |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 344.7 ci
5.6 L |
Bore/Stroke | 3.858x4.921 inches
98 x 125 mm |
Power | 85 hp
63.4 kW |
Air cleaner | dry |
Rated RPM | 2100 |
Torque | 234 lb-ft
317.3 Nm |
Torque RPM | 1400 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
10-speed gear | |
9-speed synchromesh |
Transmission — 10 forward and 2 reverse gear
Type | gear |
Gears | 10 forward and 2 reverse |
Clutch | dry disc |
Five gears, plus reverse, in two ranges. | |
Transmission — 9 forward and 3 reverse synchromesh
Type | synchromesh |
Gears | 9 forward and 3 reverse |
Clutch | dry disc |
Three synchronized gears, plus reverse, in three ranges. The synchro transmission became available in 1979. | |
Dimensions
Leyland 285 Tires | |
|---|---|
Standard tires (ag) | Front: 7.50x16. Rear: 14.00x34 |
Dimensions | |
|---|---|
Weight | 8000 lbs
3628 kg |
Photos
Leyland 285
Recommended Implements & Sizing Guide
Engineering recommendations for Leyland 285 based on its 85 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
Rotary Cutter / MowerMowing & Clearing | 7 to 8 ft (84-96 in)2.1 - 2.4 m | Heavy Duty | Heavy-duty twin spindle cutter for overgrown acreage. |
Rotary TillerSeedbed Prep | 78 to 84 in200 - 215 cm | Heavy Duty | Heavy commercial tiller with multi-speed gearbox. |
Disc HarrowSecondary Tillage | 10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙 | Heavy Duty | Aggressive residue cutting in corn/cotton stubble. |
Hay BalerHay & Forage | 4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机 | Heavy Duty | Silage and dry hay; 540 RPM PTO with slip-clutch. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Leyland 285.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Leyland 285 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Leyland 285.
Converted Equivalents:
Horsepower (HP)85 hp
Kilowatts (kW)63.4 kW
Metric Horsepower (PS / CV)86.2 PS
Direct Competitor Comparison
Compare Leyland 285 against same-era industry alternatives in the same horsepower class.
Current Model
Leyland
Leyland 285
Engine Power:Diesel (listed): 85 hp / 63.4 kW
★ Baseline Reference
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