International Harvester B-434
The International Harvester B-434 is a tractor produced by International Harvester. It is equipped with a 154 ci 2.5 L engine. The listed engine power is Diesel (listed): 43 hp / 32.1 kW. Transmission: 8 forward and 2 reverse.
Engine Power
Diesel (listed): 43 hp / 32.1 kW
Fuel & Capacities
Diesel
Transmission
8 forward and 2 reverse
Overview
 | 1966 - 1971 |
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Production | |
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Manufacturer | International Harvester |
Built in Bradford, England | |
International Harvester B-434 Engine | |
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International Harvester 2.5L 4-cyl diesel | |
Engine details ...  |
International Harvester B-434 Transmission | |
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8-speed | |
Transmission details ...  |
International Harvester B-434 Power | |
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Engine | 43 hp
32.1 kW |
Mechanical | |
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Two-wheel drive | |
Steering | mechanical |
Power Take-off (PTO) | |
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Rear PTO Type | 540 |
Dimensions & Tires | |
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Full dimensions and tires ...  |
Engine
Engine Detail — 154 ci / 2.5 L Diesel
Manufacturer | International Harvester BD-154 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 154 ci
2.5 L |
Bore/Stroke | 3.50x4.00 inches
89 x 102 mm |
Power | 43 hp
32.1 kW |
Rated RPM | 2000 |
Torque | 115 lb-ft
155.9 Nm |
Torque RPM | 1300 |
Starter type | electric |
Transmission
Transmission — 8 forward and 2 reverse
Gears | 8 forward and 2 reverse |
Dimensions
International Harvester B-434 Tires |
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Dimensions |
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Recommended Implements & Sizing Guide
Engineering recommendations for International Harvester B-434 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 International Harvester B-434.
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
International Harvester B-434 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for International Harvester B-434.
Converted Equivalents:
Horsepower (HP)43 hp
Kilowatts (kW)32.1 kW
Metric Horsepower (PS / CV)43.6 PS
Direct Competitor Comparison
Compare International Harvester B-434 against same-era industry alternatives in the same horsepower class.
Current Model
International Harvester
International Harvester B-434
Engine Power:Diesel (listed): 43 hp / 32.1 kW
★ Baseline Reference
Fox River Tractor CompanyMarket Competitor
Fox River Tractor Company 18-35
Engine Power:38.9
Production Years:1920 - 1920
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