International 664 Tractor History, Specs, Uses, Advantages and Common Issues

Overview of the International 664 Tractor

The International 664 tractor was manufactured by International Harvester from 1971 to 1975. This tractor was part of International Harvester's 600/700 series, which replaced the popular 560/660 series. The 664 is a versatile 2-wheel drive row crop tractor well-suited for a variety of farm tasks.

History of the International 664

International Harvester introduced the 664 in 1971 as part of a major revamp of their tractor lineup. It replaced the 660 and featured several improvements over that model. The 664 was manufactured at International Harvester's plant in Louisville, Kentucky before production shifted to Doncaster, England in 1974. It was marketed as part of the '60 series' line until 1975, when the '60 series' was rebranded as the '600/700 series'.

Specs and Features of the 664

The International 664 featured a 263 cubic inch naturally aspirated diesel engine. This provided 58 horsepower at the PTO and 67 hp at the drawbar. It used a synchromesh transmission with 8 forward and 2 reverse gears. The Category II 3-point hitch could lift 3965 pounds. It had a wheelbase of 92 inches and weighed approximately 6000 pounds.

Key features of the 664 included:

• Live hydraulics and differential lock
• Wide-spaced rear wheels for stability
• Independent PTO
• Optional power steering
• Optional fast hitch

This combination of power, versatility, and affordability made the 664 a popular choice among row-crop farmers and livestock operations in the 1970s.

Uses of the International 664

The International 664 was well-suited for a variety of agricultural tasks. Here are some of the main uses farmers found for this tractor:

Row Crop Work

With its 2-wheel drive configuration, the 664 excelled at working in row crop conditions. It had the power and traction to pull 4-6 row implements like cultivators, plows, and planters. The adjustable rear wheels provided versatility for different row spacings.

Haying

The 664 had the hydraulic capacity and PTO power to run mower-conditioners, balers, rakes, and other haying equipment. Its independent PTO allowed operation of mid- and rear-mount mowers.

Loader Work

The 664 could be equipped with a loader for material handling tasks around the farm. Its 67 hp engine provided ample power for bucket work. The live hydraulics enabled smooth operation of attachments.

Pulling Implements

With 58 PTO hp, the 664 could run a variety of PTO-driven implements like brush hogs, tillers, augers, and even some combines. The 1000 RPM PTO delivered smooth power transfer.

Livestock Tasks

The 664 was a capable tractor for livestock operations. It could be equipped with a loader for material handling tasks. The 3-point hitch made it easy to attach and operate rear-mounted implements like box blade scrapers, rear blades, and manure spreaders.

Advantages of the International 664

The International 664 offered farmers several advantages that made it a popular choice in the 1970s:

Power and Performance

With 58 PTO hp and 67 drawbar hp, the 664 provided ample muscle for field work, haying, loader work, and pulling implements. This was a significant upgrade over the 660 it replaced.

Versatile Capabilities

From row crop farming to livestock chores, the 664 could tackle a wide range of tasks on the farm. Its specifications and options made it highly customizable.

Easy Maintenance

The 664 was designed for easy routine maintenance. All service points were readily accessible. The diesel engine provided reliable cold weather starting and low maintenance operation.

Good Reputation

International Harvester had earned a strong reputation among farmers for building reliable, hardworking tractors. The 664 lived up to this legacy with its durable construction and dependable performance.

Reasonable Cost

For the capabilities it provided, the 664 was affordably priced compared to other tractors in its class. This made it an attractive option for budget-conscious farmers looking for an all-around row crop tractor.

Common Issues with the International 664

Like any tractor, the International 664 had a few common issues to look out for:

Hydraulic Leaks

Over time, hydraulic hoses, valves, and cylinders can develop leaks. Keeping the hydraulic system well maintained will minimize leaks.

Clutch Wear

The clutch may require periodic adjustment or replacement when it starts to slip from wear and tear.

Front Axle Pivot Bushings

The plastic bushings on the front axle pivot points wear out over time. Replacing them with new bronze bushings can reduce slop and tighten up steering.

Engine Overheating

Clogged radiators, bad water pumps, and stuck thermostats can cause the 664 to overheat. Prompt repair of any cooling system issues can prevent engine damage.

Electrical Problems

Corroded battery cables and faulty wiring can cause intermittent electrical issues. Carefully inspecting wiring and connections may reveal problem spots.

Finding Parts for the International 664

When it comes time to repair or restore an International 664 tractor, finding parts can sometimes be challenging since it is an older model. Here are some tips for sourcing 664 parts:

Lookup Parts Diagrams

Find reputable online parts diagram resources to positively identify needed parts and check availability.

Internet Forums

Join forums focused on International Harvester tractors - members often have insight on where to find parts.

Salvage Yards

Check with tractor salvage yards, many specialize in old IH tractors and have parts inventories.

eBay & Online Stores

eBay and online tractor parts retailers offer an extensive selection, new/used/NOS can often be found.

Tractor Shows

Keep an eye out for 664 parts at swap meets held at vintage tractor shows and farm shows.

Facebook Groups

Join Facebook groups for IH collectors - members will sometimes post lead on parts.

The International 664 Legacy

While only made from 1971-1975, the International 664 left an enduring legacy:

• It carried on International Harvester's tradition of building dependable, versatile tractors.
• The 664 was an important upgrade that bridged the gap between the 560/660 and next-gen 600/700 series.
• It provided an affordable row crop option for farmers on a budget.
• Many 664s remained in use on farms for decades thanks to their durability.
• The 664 is remembered fondly by operators as a hardworking, productive tractor.

Vintage tractor enthusiasts today still appreciate the capabilities of the International 664. While harder to find, restored examples are sought after by collectors and parade collectors. The International 664 represents an important chapter in International Harvester's rich tractor history.

FAQs

What years was the International 664 made?

The International 664 was manufactured from 1971 to 1975 as part of the 60 series before the line was renamed the 600/700 series.

How much horsepower did the 664 have?

The 664 had a 263 cubic inch diesel engine that produced 58 HP at the PTO and 67 HP at the drawbar.

What transmission did the 664 use?

It used a synchromesh transmission with 8 forward and 2 reverse gears.

What was the wheelbase of the 664?

The 664 had a wheelbase of 92 inches.

Could you get power steering on the 664?

Yes, power steering was available as an optional upgrade on the 664.