International Harvester 6588

The International Harvester 6588 is a tractor produced by International Harvester. It is equipped with a 466 ci 7.6 L engine. The listed engine power is Diesel (listed): 177 hp / 132.0 kW. Transmission: 16 forward and 8 reverse. Operating weight: 16320 lbs 7402 kg.

Engine Power

Diesel (listed): 177 hp / 132.0 kW

Fuel & Capacities

89 gal 336.9 L

Transmission

16 forward and 8 reverse

Operating Weight

16320 lbs 7402 kg

Overview

	1981 - 1984 60 2+2 Series

Production
Manufacturer	International Harvester
Total built	642
Original price was $65,100 in 1984

International Harvester 6588 Engine
International Harvester 7.6L 6-cyl diesel
Engine details ...

International Harvester 6588 Transmission
16-speed two-range power shift
Transmission details ...

International Harvester 6588 Power
Engine	177 hp 132.0 kW
Drawbar (claimed)	130 hp 96.9 kW
PTO (claimed)	150 hp 111.9 kW
Drawbar (tested)	126.15 hp 94.1 kW
PTO (tested)	150.41 hp 112.2 kW
Performance test details ...

Mechanical
Four-wheel drive
Steering	articulated hydrostatic power
Cab standard with burgundy finish, heat, and A/C. Optional wester finish interior.

Capacity
Fuel	89 gal 336.9 L
	139 gal (optional) 526.1 L
Hydraulic system	23.6 gal 89.3 L

Hydraulics
Type	closed center
Capacity	23.6 gal 89.3 L
Valves	2 to 4
Pump flow	18 gpm 68.1 lpm
Steering flow	12 gpm 45.4 lpm

Tractor hitch
Rear Type	III/II

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000

Dimensions & Tires
Wheelbase	110 inches 279 cm
Weight	16320 lbs 7402 kg
Front tire	18.4-38
Rear tire	18.4-38
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12

References

Buyer's Guide 1982 published by International Harvester
2+2 Tractors 130/150/170 HP published in 1981, by International Harvester

Engine

Engine Detail — 466 ci / 7.6 L Diesel

Manufacturer	International Harvester DT 466B
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled
Displacement	466 ci 7.6 L
Bore/Stroke	4.30x5.35 inches 109 x 136 mm
Power	177 hp 132.0 kW
Rated RPM	2400
Starter volts	12
Oil capacity	20 qts 18.9 L
Coolant capacity	34 qts 32.2 L

International Harvester 6588 Engine

Transmission

Transmission — 16 forward and 8 reverse two-range power shift

Type	two-range power shift
Gears	16 forward and 8 reverse
Oil capacity	94.5 qts 89.4 L
Left lever selects high, low, or reverse range. Right lever selects gear. On-the-move powershift without the clutch between gear pairs 1/2, 3/4, 5/6, and 7/8. Synchronized shift (with the clutch) from 2-to-3, 4-to-5, and 6-to-7.
With 18.4-34 tires.

Dimensions

International Harvester 6588 Tires
Ag front	18.4-38
Ag rear	18.4-38

Dimensions
Wheelbase	110 inches 279 cm
Length	228.3 inches 579 cm
Width	101.61 inches 258 cm
Shipping weight	16320 lbs 7402 kg
Ground clearance	28.4 inches 72 cm

International Harvester 6588 Height
Hood	79.9 inches 202 cm
Cab	114.1 inches 289 cm
Exhaust	125.4 inches 318 cm

Tests

Nebraska Tractor Test 1320
Diesel 16-speed 4WD August 22 - 29, 1979 Link: Nebraska Tractor Test 1320 file
PTO performance
Power at rated engine speed	150.41 hp 112.2 kW
Fuel use	9.6 gal/hour 36.3 l/hour
Power at rated PTO speed	152.07 hp 113.4 kW
Fuel use	9.0 gal/hour 34.1 l/hour
Drawbar performance
Max power	126.15 hp 94.1 kW
Fuel use	9.6 gal/hour 36.3 l/hour
Gear 4LoDD used for power test.
Max pull	17589 lbs 7978 kg
Gear 1LoDD used for pull test.

Photos

International Harvester 6588

Recommended Implements & Sizing Guide

Engineering recommendations for International Harvester 6588 based on its 177 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	5 to 7 Bottom (18")5 - 7 铧 (45 cm)	Commercial / Field Scale	Large acreage tillage; requires front ballast weights.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙	Commercial / Field Scale	Wide commercial field leveling; requires hydraulic remotes.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

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 6588.

Estimated Continuous Field Runtime: 9.7 hrs

Approximately 9.7 hours of continuous field operation at ~75% rated power on a full tank (89 gal / 336.9 L).

Estimated 75% Load Fuel Burn~9.2 gal/hr (34.8 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