The Komatsu D355A was produced from 1966 until the early 1980s. It is powerful and has a simple and durable structure. But in today’s era of faster and faster equipment updates, how much is a D355A really worth today? Is it still a good deal to buy it?

The price of D355A varies greatly, mainly depending on the age, condition and maintenance records. and the gap between it and subsequent models in the market. This guide will clarify these factors that affect price and will also briefly compare the D355A with its upgraded version, the D355A-5. Help you decide if this “old bulldozer” is worth buying.

Getting to Know the Komatsu D355A

Before you talk about price, figure out what you’re buying. The Komatsu D355A is an old machine with a sense of age. Its design idea is very direct: strong, easy to use, durable and easy to repair. On a construction site, most problems can be solved on their own if you have basic mechanical common sense and a set of handy tools.

• Mechanical Simplicity: These machines came before today’s complex electronics and computer systems. They have direct-drive or early torque converter transmissions, plus simple hydraulic systems.
• Durability: The D355A was built with extra strength—thick steel and tough parts. That’s why so many are still working today.
• Operator Experience: The cabs are basic. Often they’re open-air or have a simple ROPS (rollover protective structure). Compared to new machines, this means more noise, more vibration, and more physical work for the operator.

This simplicity is a two-way street. On one hand, there aren’t many complicated parts that can break. So repairs might cost less. On the other hand, it uses more fuel, gets work done more slowly, and operators get tired quickly. These traits shape where the machine stands in the market—and ultimately, its price.

D355A Compared with the D355A-5

If you want to assess how much a Komatsu D355A prices, it’s best to put it in a larger context. The most commonly used comparison is its next-generation model, the D355A-5. Compared with the old model, the “-5” has been significantly upgraded in technology, operating experience and comfort. Knowing the difference between the two, you can also see where the price gap between them comes from. Generally speaking, newer models will determine the price cap of older models. Below is a simple list of these major upgrades.

The comparison is actually clear at a glance: the D355A-5 is basically ahead in performance and experience, so under the same car conditions, its price is usually higher than the old D355A. Next, let’s take a look at what factors actually affect the actual price of this classic D355A.

What Factors Affect the Used Komatsu D355A Price

The used D355A price is in a range. A few thousand dollars is a parts machine that cannot be started. A well-maintained bulldozer ready for use can be purchased for tens of thousands of dollars. The prices vary greatly. When evaluating a machine, in addition to the make and model, it is also its current condition and remaining service life. Here’s an analysis of some of the most critical factors.

The Mechanical Evaluation

This is definitely the most important thing to consider. A cheap machine with a bad powertrain will cost you more money in the long run—it’s a money pit. But a slightly pricier machine that works well mechanically? That’s a great deal. 

• The Undercarriage (UC): This is the most expensive part of any dozer that wears out. Replacing the entire undercarriage can cost over $20,000. Sometimes that’s even more than the machine itself costs to buy. You need to check the sprockets, idlers, rollers, and track chains. Look for “scalloping” (wavy wear) on the sprockets. Measure how much the track pins and bushings are worn. A machine with 70% or more undercarriage life left is way more valuable than one with only 30% left.
• Engine: Start the engine from cold. Does it produce excessive smoke (white, blue, or black)? Listen for any knocking or unusual noises. Check for leaks around the engine block and ensure the cooling system is in good shape. A failing radiator can lead to catastrophic engine failure. If you suspect issues, a quality replacement like a water tank radiator (Part No. 195-03-00038), which fits both D355A-1 and D355A-3 models, is essential.
• Transmission: Operate the machine through all gears. Does it shift smoothly, or does it jerk and hesitate? For mechanical transmissions, the condition of the clutch is vital. A clutch plate (Part No. 195-22-11221), common on the D355A-3 and later models, can be a sign of upcoming transmission work. The entire system is managed by key components, and a transmission control valve assembly 195-15-00026 can render the machine inoperable.
• Hydraulics: Test all hydraulic functions for the blade and ripper (if equipped). The movements should be smooth and strong, without “drifting” or whining from the pumps. A slow or weak hydraulic system can indicate worn pumps or issues with pressure regulation, often managed by a relief valve (Part No. 195-15-00032). It’s important to note this specific valve is for the D355A-3 and -5, so for a D355A-1, you would need to verify the correct part.

Operating Hours and Year of Manufacture  

Hour meters on older machines aren’t always trustworthy. But if the hours are low and you can confirm the number, that’s a big plus.  

The year the machine was made matters just as much. For example, a 1982 D355A has small improvements that the 1968 model doesn’t. Most buyers would prefer the 1982 one.

Maintenance Records and History

If a machine comes with a thick folder of service records, it’s a great find.

These records prove the previous owner took good care of the machine. They also let you see what major work was done, like an engine rebuild or undercarriage replacement.

If this work was done recently and you have the receipts to prove it, the machine’s value goes up a lot. That also makes a higher Komatsu D355A price totally reasonable.

Price Ranges

Based on the factors above, we can split used D355A dozers into different price ranges. Note: These are general guesses for the US market in 2024. Prices can change a lot.

• For Parts / Project Machine ($5,000 – $12,000): The machine doesn’t run, or it needs big repairs (like a new engine or full undercarriage). Only people with strong mechanical skills, or those who need parts for another machine, should consider this.
• Fair Working Condition ($12,000 – $25,000): The machine runs and works, but you can see wear and tear. It’ll probably need major repairs soon. The undercarriage might have 50% or less life left. It’s a risk, but it could be worth it for light work.
• Good Working Condition ($25,000 – $45,000): This is the best choice for many buyers. The machine was well-maintained, has a decent undercarriage (60%+ life left), and is ready to work—no big issues right away. It looks old, but it works well.
• Excellent / Restored Condition ($45,000+): These are hard to find. They have very low operating hours, a nearly new undercarriage, lots of service records, and maybe a rebuilt powertrain. The price can be close to a much newer but well-used D355A-5.

Conclusion

The Komatsu D355A is an older model, but it’s still a hardworking dozer if it’s in good shape. It’s a great value for folks who like simple machinery and don’t mind fixing things themselves. But if you care more about work efficiency, comfort, or not spending time on repairs, saving up for the newer D355A-5 might be a better long-term choice. MechLink has plenty of Komatsu parts in stock at fair prices. All parts are guaranteed compatible, so you can maintain and use your machine with confidence.