Yanmar AF339
The Yanmar AF339 is a tractor produced by Yanmar. It is equipped with a 121.7 ci 2.0 L engine. The listed engine power is Diesel (listed): 39 hp / 29.1 kW. Transmission: 16 forward and reverse. Operating weight: 3197 lbs 1450 kg.
Engine Power
Diesel (listed): 39 hp / 29.1 kW
Fuel & Capacities
9.5 gal
36.0 L
Transmission
16 forward and reverse
Operating Weight
3197 lbs
1450 kg
Overview
 | 2002 - 2005
AF300 Series |
|---|
Production | |
|---|---|
Manufacturer | Yanmar |
Yanmar AF339 Engine | |
|---|---|
Yanmar 2.0L 4-cyl diesel | |
Fuel tank | 9.5 gal
36.0 L |
Engine details ...  | |
Yanmar AF339 Transmission | |
|---|---|
16-speed power shuttle | |
Transmission details ...  |
Yanmar AF339 Power | |
|---|---|
Engine | 39 hp
29.1 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Power steering | |
Wet disc brakes | |
Two-post ROPS. |
Tractor hitch | |
|---|---|
Rear Type | I |
Control | position control |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 556/787/994/1300 (1.375) |
Dimensions & Tires | |
|---|---|
Wheelbase | 72.8 inches
184 cm |
Weight | 3197 lbs
1450 kg |
Front tire | 8-18 |
Rear tire | 13.6-26 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Battery AH | 70 |
Engine
Engine Detail — 121.7 ci / 2.0 L Diesel
Manufacturer | Yanmar 4TNE84 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 121.7 ci
2.0 L |
Power | 39 hp
29.1 kW |
Fuel system | direct injection |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 16 forward and reverse power shuttle
Type | power shuttle |
Gears | 16 forward and reverse |
Clutch | wet disc |
Four power shift speeds in four ranges with power shuttle. | |
Dimensions
Yanmar AF339 Tires | |
|---|---|
Standard tires (ag) | Front: 8-18. Rear: 13.6-26 |
Dimensions | |
|---|---|
Wheelbase | 72.8 inches
184 cm |
Length | 129.5 inches
328 cm |
Width | 59.1 inches
150 cm |
Height | 77.4 inches
196 cm |
Weight | 3197 lbs
1450 kg |
Ground clearance | 13.4 inches
34 cm |
Front tread | 48.4 inches
122 cm |
Rear tread | 45.3 to 59.1 inches
115 to 150 cm |
Photos
Yanmar AF339 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Yanmar AF339 based on its 39 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
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 Yanmar AF339.
Estimated Continuous Field Runtime: 4.7 hrs
Approximately 4.7 hours of continuous field operation at ~75% rated power on a full tank (9.5 gal / 36 L).
Estimated 75% Load Fuel Burn~2 gal/hr (7.7 L/hr)
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
Yanmar AF339 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Yanmar AF339.
Converted Equivalents:
Horsepower (HP)39 hp
Kilowatts (kW)29.1 kW
Metric Horsepower (PS / CV)39.5 PS
Direct Competitor Comparison
Compare Yanmar AF339 against same-era industry alternatives in the same horsepower class.
Current Model
Yanmar
Yanmar AF339
Engine Power:Diesel (listed): 39 hp / 29.1 kW
★ Baseline Reference
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