KOMATSU PC400LC-3 Hydraulic Excavator Hrs 1989/90 7611

( Brand: Komatsu ), ( Manufacturer Part Number: PC400LC-3 ), ( Part Type: Hydraulic Excavator ), ( Model Year: 1990 ), ( Net Horsepower: Hp ), ( Hours: 7611 ), ( Max Dig Depth: 261 27 ), ( Operating Weight: Over 75, 000 Lbs ), ( Serial Number: 11936 )

Review KOMATSU Hydraulic Excavator 1989 /90 Hrs

The **Komatsu PC400LC-3 hydraulic excavator**, a model from the late 1980s, specifically from the **1989 or 1990 production years**, stands as a robust and reliable workhorse designed for heavy-duty earthmoving, demolition, and general construction tasks. This machine, bearing the serial number **7611 hours of operation**, represents a well-used yet still capable example of Komatsu s engineering prowess from an era when durability and efficiency were paramount in heavy machinery. Built with a **4-cylinder diesel engine** (likely a Komatsu or Cummins model, depending on regional specifications), the PC400LC-3 delivers a balanced blend of power and torque, making it suitable for demanding applications such as digging trenches, loading materials, or breaking through tough terrain. Its **hydraulic system**, characterized by smooth operation and precise control, ensures efficient movement of the arm, bucket, and swing mechanisms, allowing operators to handle a variety of attachments with ease.

The excavator s **cab design** from this era reflects Komatsu s focus on operator comfort and visibility, featuring a spacious, enclosed cabin with adjustable seating, climate control, and ample windows for unobstructed sightlines critical for safety and productivity in tight or complex work environments. The **hydraulic bucket**, typically rated for **0.75 cubic meters (26.5 cubic feet)**, is designed for versatility, capable of handling everything from general excavation to specialized tasks like material handling or light demolition when fitted with appropriate tools. The **swing mechanism**, driven by a robust hydraulic motor, provides a full 360-degree rotation, while the **hydraulic cylinders** including the boom, arm, and bucket are engineered to withstand the stresses of prolonged use, as evidenced by the machine s **7,611 operational hours**, suggesting it has seen extensive service without major structural compromises.

Underneath, the **undercarriage** of the PC400LC-3 features **dual rear wheels and a single front wheel**, supported by a **tracked chassis** that ensures stability on uneven or soft ground, reducing slippage and improving traction. The **track width and length** are optimized for both mobility and load-bearing capacity, allowing the excavator to navigate rough terrain while maintaining operational efficiency. The **hydraulic pumps and valves** are designed for reliability, with minimal leakage and consistent pressure delivery, which is essential for maintaining the excavator s performance over time. While the machine may show signs of wear consistent with its age and usage such as minor wear on the tracks, hydraulic hoses, or seals its **structural integrity** remains intact, making it a practical choice for operators seeking a cost-effective, mid-sized excavator for secondary or contract work.

The **Komatsu PC400LC-3** is particularly well-suited for applications in **construction, mining, landscaping, or municipal projects**, where its **compact yet powerful frame** allows it to operate in confined spaces without sacrificing performance. Its **mechanical linkages and hydraulic controls** provide a responsive feel, making it easier to maneuver than larger excavators while still offering the muscle needed for heavy-duty tasks. For buyers or operators looking for a **premium used excavator** with a proven track record, this 1989/1990 model represents an excellent balance of **durability, functionality, and value**, provided it has been properly maintained. With its **timeless design** and **industrial-grade components**, the PC400LC-3 remains a dependable asset for those in need of a versatile, no-nonsense excavator capable of handling a wide range of earthmoving challenges.

### **Pros and Cons of Buying a Komatsu PC400LC-3 Hydraulic Excavator (1989/90, 7,611 Hours)**

#### **Pros**

1. **Proven Reliability** Komatsu is a well-established brand known for durable, long-lasting machinery. The PC400LC-3, though older, was designed with robust engineering, making it a solid choice for heavy-duty applications.

2. **Good Resale Value** Komatsu excavators hold their value better than many competitors, especially well-maintained models. A 1989/90 PC400LC-3 with 7,611 hours could still fetch a reasonable price in the used market.

3. **Lower Purchase Cost** Compared to newer models, this excavator will be significantly cheaper, making it a cost-effective option for operators on a budget or those needing a backup machine.

4. **Proven Performance** The PC400LC-3 was a mid-sized excavator designed for digging, lifting, and material handling. With proper maintenance, it can still perform reliably in construction, mining, or demolition work.

5. **Parts Availability** As a legacy model, Komatsu still supplies parts for older excavators, though some components may require sourcing from specialized dealers rather than standard distributors.

6. **Potential for Modifications** The machine can be upgraded with modern attachments (e.g., hydraulic breakers, grapples) to extend its usability in different applications.

7. **Lower Fuel Consumption (Compared to Newer Models)** Older Komatsu excavators were generally more fuel-efficient than their modern counterparts, which may offset some operational costs.

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#### **Cons**

1. **Age and Wear** At nearly 35 years old, the excavator will have significant wear and tear. Key components like the engine, hydraulic system, and undercarriage may require frequent inspections and potential replacements.

2. **Higher Maintenance Costs** Older machinery tends to need more maintenance than newer models. The owner will likely face higher repair bills for parts that wear out faster, such as seals, hoses, and hydraulic cylinders.

3. **Outdated Technology** The PC400LC-3 lacks modern telematics, advanced diagnostics, and fuel-efficient engines found in newer excavators. This means less precision in operation and higher fuel consumption compared to contemporary models.

4. **Regulatory Compliance Issues** Depending on local emissions and safety regulations, an older excavator may not meet current standards, requiring retrofitting or potential restrictions on use.

5. **Lower Productivity** Newer excavators are significantly more efficient in terms of speed, power, and operator ergonomics. The PC400LC-3 will likely have slower cycle times and less comfort for the operator.

6. **Limited Warranty (If Any)** Unless the seller provides a warranty, the buyer assumes full responsibility for repairs, which could be costly over time.

7. **Potential Hidden Problems** Without a thorough inspection, issues like hydraulic leaks, engine wear, or structural fatigue may not be immediately apparent, leading to unexpected downtime and expenses.

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### **Ending Conclusion**

Buying a **1989/90 Komatsu PC400LC-3 with 7,611 hours** can be a viable option if you are looking for a **budget-friendly, reliable workhorse** for light to moderate use. It remains a solid choice for operators who prioritize **durability and cost savings** over cutting-edge technology. However, the **higher maintenance costs, age-related wear, and lack of modern efficiency** make it less ideal for heavy-duty or long-term use without significant investment in repairs and upgrades.

If the excavator is **well-documented, properly maintained, and inspected**, it could serve as a **backup machine, rental unit, or training tool**. For **primary construction work**, however, a newer or refurbished model would likely offer better performance, fuel efficiency, and lower long-term costs.

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### **Recommendation**

- You need a **low-cost, functional excavator** for occasional or secondary use.

- You are prepared to **invest in maintenance and potential upgrades**.

- You can **verify the machine s service history** and conduct a **thorough pre-purchase inspection**.

- You plan to **use it in a controlled environment** where reliability is more important than speed or fuel efficiency.

- You require **high productivity, modern diagnostics, or fuel efficiency** for daily operations.

- You cannot afford **unexpected repair costs** associated with an older machine.

- You are looking for **long-term, low-maintenance use** without significant upkeep.

**Alternative Consideration:** If budget allows, explore **refurbished or lightly used Komatsu excavators from the 2000s or later**, which offer better technology and lower maintenance risks while still being cost-effective. A **PC400LC-3 from the 2005 2010 range** would strike a better balance between affordability and modern features.

Details:

All the cylinders were repacked in 2015 as well two main hydraulic hoses that go to travel motors. Now the Nona. Other than those two issues this machine runs strong. Since then its been a yard machine used to load trucks and move product around.

This machine is a workhorse. The Komatsu PC400LC Hydraulic Excavator is a powerful piece of heavy equipment with net horsepower ranging from 251 to 300. There is a leak between the engine and hydraulic pump causing to oil over into gear housing of requiring me drain on occasion. With a maximum digging depth of 26'1'' to 27', this excavator is capable handling large-scale excavation projects with ease.

I ve been told that this is the seal between engine and hydraulic pump. Water got into the hydraulics and I haven completely drained system to rectify situation. The operating weight, over 75,000 lbs, reflects its sturdy construction and durability. A little about the equipment first.

There are some issues with it that will need to be serviced before you turn back into the workhorse.

specifications heavequipm:

• brand: Komatsu
• mpn: Pc400lc-3
• part type: Hydraulic Excavator
• model year: 1990
• net horsepower: Hp
• hours: 7611
• max dig depth: 261 27
• operating weight: Over 75, 000 Lbs
• serial number: 11936

returns heavequipm:

• policy: No Returns

shipping heavequipm:

• cost: $5.48
• service: USPS Ground Advantage
• transit: 5-11 Days
• type: Calculated
• carrier: USPS
• class: Standard

payments heavequipm:

• other
• wire transfer
• money order
• credit card: Mastercard
• wallet: Apple-pay

offer heavequipm:

• sold: 0
• quantity: 1
• options: Ship-to-home
• best offers: True
• availability: In Stock
• started: May 31, 2026

seller heavequipm:

• city: Utica, Michigan
• rating: 0.0%
• # reviews: 126

general heavequipm:

• Heavy Equipment, Parts Attachments > Heavy Equipment > Excavators
• condition: Used

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