International Harvester 5088

The International Harvester 5088 is a tractor produced by International Harvester. It is equipped with a 436 ci 7.1 L engine. The listed engine power is 136.12 hp 101.5 kW. Transmission: Synchro Tri-Six (STS). Operating weight: 13765 to 16010 pounds.

Engine Power

136.12 hp 101.5 kW

Fuel & Capacities

70 gal 264.9 L

Transmission

Synchro Tri-Six (STS)

Operating Weight

13765 to 16010 pounds

Overview

	1981 - 1985 50 SeriesRow-Crop tractor 50 Series Row-Crop tractor

Production
Manufacturer	International Harvester
Row-Crop tractor
Built in Rock Island, Illinois, USA
Total built	8,176
Original price was $54,300 in 1985

International Harvester 5088 Engine
International Harvester 7.1L 6-cyl diesel
Engine details ...

International Harvester 5088 Transmission
18-speed partial power shift
Transmission details ...

International Harvester 5088 Power
Drawbar (claimed)	119 hp 88.7 kW
PTO (claimed)	135 hp 100.7 kW
Drawbar (tested)	116.19 hp 86.6 kW
PTO (tested)	136.12 hp 101.5 kW
Performance test details ...

Mechanical
Two- or four-wheel drive
Final drives	planetary
Differential lock	mechanical rear
Power steering
Hydraulic wet disc brakes
Cab standard with heat and air-conditioning. Optional burgundy or western interior finish.

Capacity
Fuel	70 gal 264.9 L
Hydraulic system	43.5 gal 164.6 L

Hydraulics
Type	closed center
Capacity	43.5 gal 164.6 L
Valves	2
Pump flow	25 gpm 94.6 lpm
	40 gpmOptOptional 151.4 lpm
Total flow	67 gpm 253.6 lpm
	82 gpmOptOptional 310.4 lpm
Steering flow	12 gpm 45.4 lpm

Tractor hitch
Rear Type	III
Rear lift	6990 lbs 3170 kg
	8280 lbsOptOptional 3755 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000

Dimensions & Tires
Wheelbase	111.6 inches 283 cm
Weight	13765 to 16010 pounds
Front tire	10.00-16
Rear tire	18.4-38
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12

References

Buyer's Guide 1982 published by International Harvester
The New Number One! - Tractors 135/160/185 HP published in 1981, by International Harvester
50 Series Tractors published in 1985, by International Harvester

Engine

Engine Detail — 436 ci / 7.1 L Diesel

Manufacturer	International Harvester DT-436B
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled inline
Displacement	436 ci 7.1 L
Bore/Stroke	4.30x5.00 inches 109 x 127 mm
Rated RPM	2400
Idle RPM	900-2655
Starter volts	12
Oil capacity	20 qts 18.9 L
Coolant capacity	29 qts 27.4 L

Transmission

Transmission — Synchro Tri-Six (STS)

Transmission	Synchro Tri-Six (STS)
Type	partial power shift
Gears	18 forward and 6 reverse
Oil capacity	174 qts 164.7 L
Left lever selects gear, right lever selects high, medium, low, or reverse range. Clutch-free on-the-move power shift in gear pairs 1/2, 3/4, and 5/6. Synchronized on-the-move shifting (with the clutch) between pairs.
With 18.4-38 rear tires.

Dimensions

International Harvester 5088 Tires
Ag front	10.00-16
Ag rear	18.4-38

Dimensions
Wheelbase	111.6 inches 283 cm
Length	196.6 inches 499 cm
Width	112 inches 284 cm
Height	115 inches 292 cm
Ground clearance	17.2 inches 43 cm
Bar rear axle	3.50 by 112 inches 88 by 2844 mm
Front tread	60 to 84 inches 152 to 213 cm

International Harvester 5088 Weight
2WD Shipping	13765 lbs 6243 kg
4WD Shipping	15208 lbs 6898 kg
Operating	16010 lbs 7262 kg

Tests

Nebraska Tractor Test 1419
Diesel 18-speed 2WD November 12 - December 8, 1981 Link: Nebraska Tractor Test 1419 file
PTO performance
Power at rated engine speed	136.12 hp 101.5 kW
Fuel use	8.9 gal/hour 33.7 l/hour
Drawbar performance
Max power	116.19 hp 86.6 kW
Fuel use	8.8 gal/hour 33.3 l/hour
Max pull	14,960 lbs 6785 kg

Photos

International Harvester 5088, front-right view

International Harvester 5088, front-left view

International Harvester 5088, right-rear view

International Harvester 5088.

Recommended Implements & Sizing Guide

Engineering recommendations for International Harvester 5088 based on its 136.12 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm)	Heavy Duty	Heavy primary tillage; semi-mounted hitch recommended.
Rotary Cutter / MowerMowing & Clearing	10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼	Heavy Duty	Wide swath pasture and crop residue shredding.
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	5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机	Heavy Duty	High density baling; requires minimum 85 PTO HP.

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 5088.

Estimated Continuous Field Runtime: 9.9 hrs

Approximately 9.9 hours of continuous field operation at ~75% rated power on a full tank (70 gal / 265 L).

Estimated 75% Load Fuel Burn~7.1 gal/hr (26.8 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