Market Segment:
Light to medium-duty agricultural tractor
Target User:
Farmers, agricultural mechanics, restoration enthusiasts
Key Competitors:
Massey Ferguson, Fordson, John Deere, David Brown (of similar era and power)
Traction Aid:
Rear-wheel drive, potential for differential lock
Power Take Off:
Standard rear PTO
Three Point Hitch:
Standard Category I or II three-point hitch
Engine Overhaul:
Yes (detailed disassembly, assembly, troubleshooting)
Fuel System:
Yes (carburetor/injection, fuel pump, filters)
Cooling System:
Yes (radiator, thermostat, water pump, hoses)
Lubrication System:
Yes (oil pump, oil filter, lubrication passages)
Ignition System:
Yes (spark plugs, ignition timing, distributor)
Transmission Manual:
Yes (gearbox, clutch, linkages)
Transmission Power Take Off:
Yes (PTO operation, gearing, engagement)
Drive Axles:
Yes (differential, half-shafts, final drives)
Steering System:
Yes (steering box, linkages, adjustment)
Braking System:
Yes (drum/disc brakes, master cylinder, linkages)
Hydraulic System:
Yes (lift system, hydraulics for implements, pump, cylinders)
Electrical System:
Yes (lighting, starting, charging system, wiring diagrams)
Chassis And Frame:
Yes (frame inspection, repairs, mounting points)
Bodywork And Fenders:
Yes (sheet metal repair, mounting, adjustments)
Routine Maintenance:
Yes (oil changes, filter replacements, greasing, inspections)
Troubleshooting Diagnostics:
Yes (identification of common problems and diagnostic steps)
Component Repair:
Yes (detailed step-by-step repair instructions for all major components)
Component Rebuild:
Yes (engine, transmission, hydraulic pump rebuilds)
Adjustment Procedures:
Yes (valve lash, clutch free play, brake adjustments, timing)
Torquing Specifications:
Yes (critical bolt torques for engine, transmission, chassis components)
Wiring Diagrams:
Yes (detailed electrical schematics)
Depth Level:
Professional-level service and repair
Diagnostics Capability:
Advanced troubleshooting and fault finding
Rebuild Instructions:
Complete rebuild procedures for major assemblies
Engine Manufacturer:
International Harvester (likely based on or manufactured by them)
Engine Configuration:
Vertical, inline, naturally aspirated
Displacement Liters:
Approximately 2.6 - 2.9 Liters (based on common IH diesel engines of the period)
Cylinders:
3 or 4 cylinders (most likely 3 for B275)
Horsepower Rated:
Approximately 35-45 PTO HP (actual rated HP varies by source and specific engine tune)
Torque Peak:
Estimated 100-120 lb-ft (typical for engines of this size and era)
Injection System:
Indirect injection (likely CAV or Simms inline injection pump)
Cooling Method:
Water Cooled
Oil Type Recommendation:
SAE 30 or 20W-30 Diesel Engine Oil (API CD or equivalent)
Oil Capacity Liters:
Approximately 5.5 - 6.5 Liters
Oil Filter Part Number:
Varies by filter manufacturer (e.g., Wix 51515, Baldwin B73, IH Part No. 372008R1)
Transmission Type:
Manual
Gear Configuration:
Constant Mesh
Number Of Speeds Forward:
8 Forward Speeds
Number Of Speeds Reverse:
2 Reverse Speeds
Multi Speed Rear Axle:
Some models may have had a multi-speed rear axle option for enhanced gearing.
Clutch Type:
Dry, Single Plate
Gearbox Oil Type:
API GL-4 Gear Oil (e.g., 80W-90 or 85W-140)
Gearbox Oil Capacity Liters:
Approximately 15-20 Liters (including hydraulic system)
Wheelbase Inches:
Approximately 70-75 inches
Overall Length Inches:
Approximately 120-130 inches
Overall Width Inches:
Approximately 60-70 inches (track width adjustable)
Operating Weight Lbs:
Approximately 3500 - 4000 lbs
Drawbar Pull Capacity Lbs:
Varies significantly based on ballast and tire configuration
Engine Oil Change Interval:
Every 100-200 operating hours, or annually
Air Filter Cleaning Interval:
Check and clean every 50 operating hours, replace as needed
Fuel Filter Replacement Interval:
Every 200-300 operating hours, or as needed
Transmission Oil Change Interval:
Every 500-1000 operating hours, or every 2-3 years
Greasing Points:
Daily/Weekly greasing of pivot points, kingpins, PTO shaft, linkage points
Hydraulic Fluid Type:
Universal Tractor Transmission Oil (UTTO) meeting IH specification (e.g., Hy-Trans Plus or equivalent) or API GL-4 Gear Oil.
Hydraulic Fluid Capacity Liters:
Approximately 15-20 Liters (shared with transmission and final drives)
Common Wear Items:
Clutch wear, hydraulic pump wear, PTO clutch engagement issues, rear axle seal leaks.
Engine Common Faults:
Glow plug issues, injector pump wear, piston ring wear leading to blow-by.
Electrical System Issues:
Aging wiring harness, starter motor reliability, generator/alternator faults.
Brand Legacy:
International Harvester (IH) was a leading American manufacturer of agricultural machinery and vehicles for over a century.
Production Period:
Mid-to-late 1950s (approx. 1955-1960)
Positioning:
A successful and popular model in IH's light tractor lineup, succeeding earlier 'A' series and preceding later '300' series.
Manufacturing Location:
United States (primary), also potentially produced under license or adapted in other countries (e.g., UK).
Model Significance:
Known for its robust design, reliability, and versatility in various farm applications.
