Bukh 403
The Bukh 403 is a tractor produced by Bukh. It is equipped with a 206.1 ci 3.4 L engine. The listed engine power is Diesel (listed): 43 hp / 32.1 kW. Transmission: 8 forward and 4 reverse. Operating weight: 4115 lbs 1866 kg.
Engine Power
Diesel (listed): 43 hp / 32.1 kW
Fuel & Capacities
9.25 gal
35.0 L
Transmission
8 forward and 4 reverse
Operating Weight
4115 lbs
1866 kg
Overview
 | 1963 - 1967
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Bukh |
Utility tractor | |
Built in Denmark | |
Bukh 403 Engine | |
|---|---|
Bukh 3.4L 3-cyl diesel | |
Fuel tank | 9.25 gal
35.0 L |
Engine details ...  | |
Bukh 403 Transmission | |
|---|---|
8-speed gear | |
Transmission details ...  |
Bukh 403 Power | |
|---|---|
Engine | 43 hp
32.1 kW |
PTO (claimed) | 36 hp
26.8 kW |
Mechanical | |
|---|---|
Two-wheel drive | |
Open operator station. |
Hydraulics | |
|---|---|
Pump flow | 4.2 gpm
15.9 lpm |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 (1.375) |
Engine RPM | 540@1740 |
1000@1790 | |
Dimensions & Tires | |
|---|---|
Weight | 4115 lbs
1866 kg |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 8.7 inches
22 cm |
Width | 5.9 inches
14 cm |
RPM | 1440 |
References | |
|---|---|
 | |
The Quality Tractor published by Bukh |
Engine
Engine Detail — 206.1 ci / 3.4 L Diesel
Manufacturer | Bukh 3G105 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 206.1 ci
3.4 L |
Bore/Stroke | 4.134x5.118 inches
105 x 130 mm |
Power | 43 hp
32.1 kW |
Rated RPM | 1800 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 8 forward and 4 reverse gear
Type | gear |
Gears | 8 forward and 4 reverse |
Four gears in two ranges, plus reverse range. | |
 | |
Dimensions
Bukh 403 Tires |
|---|
Dimensions | |
|---|---|
Weight | 4115 lbs
1866 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for Bukh 403 based on its 43 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 | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
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 Bukh 403.
Estimated Continuous Field Runtime: 4.2 hrs
Approximately 4.2 hours of continuous field operation at ~75% rated power on a full tank (9.3 gal / 35 L).
Estimated 75% Load Fuel Burn~2.2 gal/hr (8.5 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
Bukh 403 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Bukh 403.
Converted Equivalents:
Horsepower (HP)43 hp
Kilowatts (kW)32.1 kW
Metric Horsepower (PS / CV)43.6 PS
Direct Competitor Comparison
Compare Bukh 403 against same-era industry alternatives in the same horsepower class.
Current Model
Bukh
Bukh 403
Engine Power:Diesel (listed): 43 hp / 32.1 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 364
Engine Power:38.9
Production Years:1976 - 1977
Fox River Tractor CompanyMarket Competitor
Fox River Tractor Company 18-35
Engine Power:38.9
Production Years:1920 - 1920
Related models
Bukh 452
- Power:
- 45
- Production years:
- 1960 - 1967
Bukh D-45
- Power:
- 45
- Production years:
- 1958 - 1960
Bukh DZ-45
- Power:
- 45
- Production years:
- 1956 - 1957
Bukh Hercules
- Power:
- 93
- Production years:
- 1967 - 1968
Bukh Juno
- Power:
- 52
- Production years:
- 1967 - 1968