International Harvester B-250

The International Harvester B-250 is a tractor produced by International Harvester. It is equipped with a 144 ci 2.4 L engine. The listed engine power is Diesel (listed): 30 hp / 22.4 kW. Transmission: 5 forward and 1 reverse. Operating weight: 3333 lbs 1511 kg.

Engine Power

Diesel (listed): 30 hp / 22.4 kW

Fuel & Capacities

10 gal 37.9 L

Transmission

5 forward and 1 reverse

Operating Weight

3333 lbs 1511 kg

Overview

	1956 - 1961 Utility tractor

Production
Manufacturer	International Harvester
Utility tractor
Built in Bradford, England

International Harvester B-250 Engine
International Harvester 2.4L 4-cyl diesel
Engine details ...

International Harvester B-250 Transmission
5-speed gear
Transmission details ...

International Harvester B-250 Power
Engine	30 hp 22.4 kW

Mechanical
Two-wheel drive
Disc brakes
Open operator station.

Capacity
Fuel	10 gal 37.9 L
Hydraulic system	3 gal 11.4 L

Hydraulics
Type	open center
Capacity	3 gal 11.4 L

Tractor hitch
Rear Type	II/I

Dimensions & Tires
Wheelbase	74 inches 187 cm
Weight	3333 lbs 1511 kg
Front tire	5.50x16
Rear tire	10x28
Full dimensions and tires ...

References

B-250 Diesel published in 1958, by International Harvester
All-Purpose Power On Wheel published in 1959, by International Harvester

Engine

Engine Detail — 144 ci / 2.4 L Diesel

Manufacturer	International Harvester BD-144
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled
Displacement	144 ci 2.4 L
Bore/Stroke	3.375x4.00 inches 86 x 102 mm
Power	30 hp 22.4 kW
Rated RPM	1875
Oil capacity	6.3 qts 6.0 L
Coolant capacity	10.6 qts 10.0 L

Transmission

Transmission — 5 forward and 1 reverse gear

Type	gear
Gears	5 forward and 1 reverse
Clutch	254mm dry disc
Oil capacity	25.8 qts 24.4 L
With 10x28 rear tires.

Dimensions

International Harvester B-250 Tires
Ag front	5.50x16
Ag rear	10x28
Ag rear	11x28

Dimensions
Wheelbase	74 inches 187 cm
Length	111.8 inches 283 cm
Height (steering wheel)	59 inches 149 cm
Weight	3333 lbs 1511 kg
Front tread	59.1 to 57 inches 150 to 144 cm
Rear tread	63.8 to 87.8 inches 162 to 223 cm

Photos

International B-250 with front-end loader.

International B-250.

International B-250, front view.

Recommended Implements & Sizing Guide

Engineering recommendations for International Harvester B-250 based on its 30 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.

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-250.

Estimated Continuous Field Runtime: 6.4 hrs

Approximately 6.4 hours of continuous field operation at ~75% rated power on a full tank (10 gal / 37.9 L).

Estimated 75% Load Fuel Burn~1.6 gal/hr (5.9 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