| Manufacturer |
International Harvester |
| Price |
23,400(USD) |
| Model |
Hydro 86 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
|
NEBRASKA TRACTOR TEST 1154 2
| Description |
Gasoline hydrostatic 2WD November 14 - December 3, 1973 Link: Nebraska Tractor Test 1154 file PTO performance Drawbar performance |
| Power at rated engine speed |
69.61hp / 51.9kW |
| Fuel use |
7.7gal/hour / 29.1l/hour |
| Power at rated PTO speed |
64.10hp / 47.8kW |
| Max power |
53.86hp / 40.2kW |
| Max pull |
8,427lbs / 3822kg |
NEBRASKA TRACTOR TEST 1155 2
| Description |
312 diesel hydrostatic 2WD November 14 - December 3, 1973 Link: Nebraska Tractor Test 1155 file PTO performance Drawbar performance |
| Power at rated engine speed |
69.51hp / 51.8kW |
| Fuel use |
5.6gal/hour / 21.2l/hour |
| Power at rated PTO speed |
65.41hp / 48.8kW |
| Max power |
53.10hp / 39.6kW |
| Max pull |
8,310lbs / 3769kg |
NEBRASKA TRACTOR TEST 1337 2
| Description |
310 diesel hydrostatic 2WD March 27 - September 17, 1980 Link: Nebraska Tractor Test 1337 file PTO performance Drawbar performance Pull at 6.5 KPH/Pull at 3.3 KPH |
| Power at rated engine speed |
70.89hp / 52.9kW |
| Fuel use |
5.3gal/hour / 20.1l/hour |
| Power at rated PTO speed |
66.64hp / 49.7kW |
| Max power |
52.49hp / 39.1kW |
| Max pull |
8815lbs / 3998kg |
INTERNATIONAL HARVESTER HYDRO 86 POWER
| Drawbar (claimed) |
53.4hp / 39.8kW |
| PTO (claimed) |
69.51hp / 51.8kW |
| Drawbar (tested) |
53.86hp / 40.2kW |
| PTO (tested) |
70.89hp / 52.9kW |
ENGINES OVERVIEW
The International Harvester Hydro 86 features a robust 5.1L 6-cylinder diesel engine, offering superior torque and fuel efficiency for demanding tasks, making it ideal for heavy-duty agricultural applications. The alternative 4.8L 6-cylinder gasoline engine provides a responsive power delivery with potentially lower initial costs, but may face challenges in fuel economy and longevity compared to its diesel counterpart. Consider your farm's operational needs and fuel availability when selecting between these two engine options to optimize performance and cost-effectiveness.
| Description |
International Harvester 5.1L 6-cyl diesel International Harvester 4.8L 6-cyl gasoline |
ENGINE DETAIL 1
The International Harvester Hydro 86 features a robust D-312 diesel engine with a solid displacement of 5.1L, delivering efficient torque characteristics suitable for heavy-duty applications. Its 17:1 compression ratio enhances thermal efficiency, while the dual dry element air cleaner provides optimal filtration for extended engine longevity. A common challenge may arise from maintaining the engine's temperature under heavy loads; thus, regular coolant checks and potential upgrades to the cooling system are advisable for sustained performance in demanding farming scenarios.
| Description |
International Harvester D-312 diesel 6-cylinder liquid-cooled |
| Displacement |
312ci / 5.1L |
| Bore/Stroke |
3.875x4.410inches / 98x 112mm |
| Air cleaner |
dual dry element with unloader |
| Compression |
17:1 |
| Rated RPM |
2400 |
| Starter volts |
12 |
ENGINE DETAIL 2
The International Harvester Hydro 86 features a robust 6-cylinder gasoline engine with a displacement of 290.8 cubic inches (4.8L), providing ample power for various agricultural applications. The dual-stage dry air cleaner enhances engine performance by maintaining air quality, while the 7.5:1 compression ratio ensures efficient fuel combustion at a rated RPM of 2400, making it suitable for heavy-duty tasks. However, this lower compression may limit power output compared to modern tractor engines, requiring operators to plan usage for optimal efficiency in heavier workloads.
| Description |
International Harvester gasoline 6-cylinder liquid-cooled |
| Displacement |
290.8ci / 4.8L |
| Bore/Stroke |
3.75x4.39inches / 95x 112mm |
| Air cleaner |
dual stage dry with dust unloader |
| Compression |
7.5:1 |
| Rated RPM |
2400 |
| Starter volts |
12 |
ENGINE DETAIL 3
The International Harvester Hydro 86 features a robust D-310 diesel engine with a displacement of 310 cubic inches, offering a high compression ratio of 15.1:1, which enhances fuel efficiency and torque at a rated RPM of 2400. The engine's bore and stroke of 3.875x4.375 inches provide a balance of power and efficiency, making it ideal for agricultural tasks that require moderate to heavy pulling capacity. However, the dry air cleaner may necessitate more frequent maintenance in dusty environments, posing a challenge for prolonged operation.
| Description |
International Harvester D-310 diesel 6-cylinder liquid-cooled The D-310 diesel was used on the Hydro 86, replacing the 312, during production in 1979 |
| Displacement |
310ci / 5.1L |
| Bore/Stroke |
3.875x4.375inches / 98x 111mm |
| Air cleaner |
dry |
| Compression |
15.1:1 |
| Rated RPM |
2400 |
INTERNATIONAL HARVESTER HYDRO 86 ENGINES
The International Harvester Hydro 86 tractor is equipped with either a 5.1L 6-cylinder diesel engine or a 4.8L 6-cylinder gasoline engine, providing flexibility in fuel choice and performance. The diesel variant offers superior torque and fuel efficiency for heavy-duty applications, making it suitable for agricultural tasks, while the gasoline model may be more cost-effective for lighter operations. Notably, the hydrostatic transmission allows for smooth speed adjustments, enhancing maneuverability but may require more maintenance than traditional gear systems.
| Description |
International Harvester 5.1L 6-cyl diesel/International Harvester 4.8L 6-cyl gasoline |
TRANSMISSION
The International Harvester Hydro 86 features a hydrostatic transmission that provides seamless speed control, enhancing operator comfort and precision during tasks like tilling or mowing. Its variable 2-range gear system offers versatility for both low-speed, high-torque applications and higher-speed operations, making it adaptable for various farming scenarios. However, the complexity of hydrostatic systems can lead to higher maintenance requirements compared to traditional gear-driven tractors.
| Type |
hydrostatic |
| Gears |
variable (2-range) forward and reverse |
MECHANICAL
The International Harvester Hydro 86 features a 4x2 2WD chassis, providing sufficient maneuverability for lighter tasks but limiting traction in wet or uneven conditions. Its hydrostatic transmission offers seamless speed control, enhancing ease of operation for varied tasks while requiring regular maintenance to ensure efficiency. The open operator station design may improve visibility and airflow but can expose the operator to weather elements, which is a consideration for prolonged use in adverse conditions.
| Chassis |
4x2 2WD |
| Steering |
power |
| Brakes |
differential dry disc |
| Cab |
Open operator station |
| Transmission |
hydrostatic |
HYDRAULICS
| Valves |
1 |
| Pump flow |
12gpm / 45.4lpm |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540 |
INTERNATIONAL HARVESTER HYDRO 86 TIRES
The International Harvester Hydro 86 tractor features a unique hydrostatic transmission that enhances maneuverability and provides precise control in varying terrain, ideal for both agricultural and landscaping applications. The front tires (7.50-16) and rear tires (15.5-38) ensure good traction and stability, though the narrower front could limit load capacity compared to wider alternatives. Potential challenges include maintenance complexity of the hydrostatic system and tire compatibility for specialized tasks; however, its compact design makes it suitable for smaller farms or tight working conditions.
| Ag front |
7.50-16 |
| Ag rear |
15.5-38 |
DIMENSIONS
| Operating weight |
8200lbs / 3719kg |
| Ballasted weight |
10430lbs / 4731kg |
DIMENSIONS & TIRES
The International Harvester Hydro 86 tractor, weighing 8,200 lbs (3,719 kg), is designed for stability in heavy-duty agricultural tasks, thanks to its robust rear tires (15.5-38) that provide excellent traction on uneven terrain. However, the front tire size (7.50-16) may limit front-end lift capacity and steering responsiveness under heavy loads, presenting a challenge during tight maneuvering. This model excels in applications like plowing and tillage, but operators should ensure proper ballast to optimize weight distribution and prevent potential front-end lift issues.
| Weight |
8200lbs / 3719kg |
| Front tire |
7.50-16 |
| Rear tire |
15.5-38 |
HYDRO 86 SERIAL NUMBERS
| Location |
Serial number plate on the left side of the tractor's clutch housing |
