Looking for a reliable workhorse that won't break the bank? The International Harvester (IH) 674 diesel tractor might just be the answer. This classic piece of machinery has a reputation for being tough and dependable, but like any piece of equipment, it has its pros and cons. Let’s dive into what makes the IH 674 tick and whether it's the right choice for your needs, exploring its strengths, weaknesses, and everything in between.

What Makes the IH 674 a Popular Choice?

The IH 674 has earned a loyal following for a few key reasons. It's a versatile tractor that can handle a wide range of tasks, from plowing and tilling to mowing and hauling. Its simplicity in design makes it relatively easy to maintain and repair, a major plus for those who prefer to do their own work.

Here's a quick overview of why people love this tractor:

  • Reliability: The IH 674 is known for its rugged construction and long lifespan.
  • Versatility: It's capable of handling various agricultural tasks.
  • Ease of Maintenance: Simple design allows for easier repairs.
  • Affordability: Compared to newer models, the IH 674 is often more budget-friendly.
  • Parts Availability: Replacement parts are generally readily available.

Digging Deeper: Engine and Performance

The heart of the IH 674 diesel is its engine. Typically, you'll find a 236 cubic inch (3.9L) four-cylinder diesel engine under the hood. This engine is known for its fuel efficiency and decent power output, generally around 66 horsepower at the PTO (Power Take-Off).

Key Engine Specs:

  • Engine Type: Four-cylinder diesel
  • Displacement: 236 cubic inches (3.9L)
  • Horsepower: Approximately 66 PTO HP
  • Fuel System: Injection pump
  • Cooling System: Liquid-cooled

This engine provides enough power for most common farm tasks. While it might not be the fastest or most powerful tractor on the market, it's a solid performer that can get the job done reliably. The fuel efficiency is a major plus, especially considering the rising cost of diesel.

Transmission Options: Finding the Right Fit

The IH 674 offered a few different transmission options, allowing buyers to choose the one that best suited their needs. The most common options included:

  • Gear Transmission: A standard gear transmission with multiple forward and reverse speeds. This provides a good range of speeds for various tasks.
  • Hydrostatic Transmission: Some models were equipped with a hydrostatic transmission, offering infinitely variable speeds and easier operation, especially for tasks requiring precise control.

The gear transmission is generally more durable and easier to repair, while the hydrostatic transmission offers greater convenience and ease of use. Consider the type of work you'll be doing most often when choosing a transmission type. If you're doing a lot of loader work or tasks requiring frequent speed changes, the hydrostatic transmission might be a better choice. For general field work, the gear transmission is a solid option.

Hydraulic System: Power Where You Need It

The hydraulic system on the IH 674 is another important aspect to consider. It powers the tractor's implements, such as loaders, mowers, and plows. The hydraulic system is generally reliable, but it's important to check for leaks and ensure that the pump is functioning properly.

Key Hydraulic System Features:

  • Open Center System: A common and reliable hydraulic system design.
  • Hydraulic Pump: Provides the necessary pressure for operating implements.
  • Remote Valves: Allows for the connection of hydraulic cylinders on implements.

When inspecting an IH 674, pay close attention to the hydraulic lines and connections. Look for any signs of leaks or damage. Also, check the hydraulic fluid level and condition. Dirty or low fluid can indicate problems with the system.

Operator Comfort and Controls: A Practical Perspective

While the IH 674 isn't known for its luxurious features, it's a reasonably comfortable tractor to operate. The controls are straightforward and easy to understand. The seat is typically adjustable, allowing you to find a comfortable position.

Here are some points to consider regarding operator comfort:

  • Seat: Look for a seat in good condition, or budget for a replacement if necessary.
  • Controls: Ensure all controls are within easy reach and function smoothly.
  • Visibility: The IH 674 offers decent visibility, but check for any obstructions.
  • Noise Level: Like most older tractors, the IH 674 can be noisy, so ear protection is recommended.

Don't expect the same level of comfort as you would find in a modern tractor. However, the IH 674 is a practical and functional machine that gets the job done.

Common Problems and How to Spot Them

Like any older tractor, the IH 674 is prone to certain problems. Being aware of these potential issues can help you make an informed buying decision and avoid costly repairs down the road.

Here are some common problems to watch out for:

  • Engine Issues: Check for excessive smoke, unusual noises, or difficulty starting.
  • Hydraulic Leaks: Inspect all hydraulic lines and connections for leaks.
  • Transmission Problems: Listen for unusual noises or slipping when shifting gears.
  • Electrical Issues: Check the lights, starter, and other electrical components.
  • Worn Steering Components: Look for excessive play in the steering wheel.

A thorough inspection is crucial before purchasing an IH 674. If possible, have a mechanic inspect the tractor to identify any potential problems.

Finding Parts and Keeping It Running

One of the biggest advantages of owning an IH 674 is the availability of replacement parts. Because these tractors were produced in large numbers, parts are generally readily available and relatively affordable.

Here are some resources for finding IH 674 parts:

  • Tractor Supply Stores: Many tractor supply stores carry common replacement parts.
  • Online Retailers: Online retailers specialize in tractor parts.
  • Salvage Yards: Tractor salvage yards are a good source for used parts.
  • IH Dealers: Some IH dealers still carry parts for older models.

Regular maintenance is key to keeping your IH 674 running smoothly. Follow the manufacturer's recommended maintenance schedule and address any problems promptly.

Is an IH 674 Right for You? Consider These Factors

Before you decide to buy an IH 674, it's important to consider your specific needs and circumstances.

Ask yourself these questions:

  • What type of work will you be doing with the tractor?
  • How much horsepower do you need?
  • What is your budget?
  • Are you comfortable performing your own maintenance and repairs?
  • Do you need a lot of modern features, or are you okay with a simpler machine?

If you're looking for a reliable and affordable tractor for general farm work and you're comfortable with basic maintenance, the IH 674 could be a good choice. However, if you need a lot of power or modern features, you might want to consider a newer model.

IH 674 vs. The Competition: How Does It Stack Up?

The IH 674 had several competitors in its time, including tractors from John Deere, Ford, and Massey Ferguson. Each of these tractors had its own strengths and weaknesses.

Here's a brief comparison:

  • John Deere: John Deere tractors are known for their quality and reliability, but they tend to be more expensive than IH models.
  • Ford: Ford tractors are generally affordable and reliable, but they may not be as powerful as the IH 674.
  • Massey Ferguson: Massey Ferguson tractors offer a good balance of performance and affordability.

Ultimately, the best tractor for you will depend on your specific needs and preferences. It's a good idea to research different models and compare their features and prices.

Frequently Asked Questions

  • How much horsepower does an IH 674 have? The IH 674 typically has around 66 horsepower at the PTO. This provides ample power for a variety of farm tasks.

  • Are IH 674 parts easy to find? Yes, replacement parts for the IH 674 are generally readily available. You can find them at tractor supply stores, online retailers, and salvage yards.

  • What type of oil does an IH 674 use? The IH 674 typically uses 15W-40 engine oil. Always refer to the owner's manual for specific recommendations.

  • Is the IH 674 a good tractor for haying? Yes, the IH 674 is a capable tractor for haying. Its power and versatility make it suitable for mowing, baling, and moving hay.

  • What is the fuel capacity of an IH 674? The fuel tank capacity of an IH 674 is approximately 16 gallons. This allows for a decent amount of operating time between refills.

The Bottom Line: Is It a Good Tractor?

The IH 674 diesel tractor is a solid, reliable machine that offers a lot of value for its price. While it may not have all the bells and whistles of a modern tractor, it's a dependable workhorse that can handle a wide range of tasks. If you're looking for an affordable and versatile tractor, the IH 674 is definitely worth considering.