CAT vs Komatsu Excavators: Used Buyer's Comparison Guide
Caterpillar and Komatsu are the world's two largest construction equipment manufacturers, and their excavators dominate the used market. For buyers choosing between the two, this guide breaks down the key differences to help you make the right decision.
The Matchup: 20-Ton Class
The 20-ton class is the most traded excavator segment globally. We'll focus on the most common used models:
- Caterpillar 320F / 320 GC / 323 (2018-2023)
- Komatsu PC200-10M0 / PC210-11 (2018-2023)
Price Comparison
CAT excavators consistently command higher prices in the used market:
| Model | Year Range | Typical Price (USD) | Premium |
|---|---|---|---|
| CAT 320F | 2018-2020 | $58,000-$82,000 | Baseline |
| Komatsu PC200-10M0 | 2018-2020 | $48,000-$68,000 | 15-20% less |
| CAT 323 | 2019-2021 | $80,000-$115,000 | Baseline |
| Komatsu PC210-11 | 2020-2022 | $62,000-$88,000 | 20-25% less |
Verdict: Komatsu offers better value on purchase price. CAT commands a brand premium that may or may not be justified depending on your market.
Resale Value
CAT machines hold their value better over time:
- CAT: Retains approximately 55-65% of new value after 5 years
- Komatsu: Retains approximately 45-55% of new value after 5 years
This matters if you plan to resell the machine. However, if you plan to run the machine to end of life, the lower Komatsu purchase price may be more advantageous.
Engine and Power
| Specification | CAT 320F | Komatsu PC200-10M0 |
|---|---|---|
| Engine | CAT C4.4 ACERT | Komatsu SAA6D107E-3 |
| Power | 121 kW (162 hp) | 110 kW (148 hp) |
| Displacement | 4.4L | 6.7L |
| Fuel consumption | ~15-18 L/hr | ~12-15 L/hr |
Komatsu advantage: Better fuel efficiency — the Komatsu in-house engine typically burns 10-15% less fuel, which adds up significantly over thousands of operating hours.
CAT advantage: More power for demanding applications; the ACERT engine is widely supported globally.
Hydraulic Performance
- CAT: Uses a main pump with electronically controlled flow sharing. Strong breakout force and fast cycle times. The hydraulic system is responsive and well-suited for production work.
- Komatsu: CLSS (Closed-Center Load Sensing System) provides smooth, precise control. Slightly better for fine grading work. Excellent multi-function performance.
Verdict: Tie — CAT edges ahead in raw power; Komatsu wins on precision and fuel efficiency.
Reliability and Maintenance
Both brands are extremely reliable. Key differences:
CAT
- More complex electronic systems — great when working, costly when they fail
- Requires CAT-specific diagnostic tools for many repairs
- Proprietary filters and fluids recommended (higher maintenance costs)
- Extensive global dealer network for support
Komatsu
- Simpler engine management systems in most models
- KOMTRAX telematics system included as standard — excellent for remote monitoring
- More tolerant of aftermarket parts and fluids
- Strong dealer network, especially in Asia and the Pacific
Verdict: Komatsu has a slight edge in ease of maintenance and lower ongoing costs. CAT has superior dealer coverage in Africa and Latin America.
Parts Availability and Cost
| Factor | CAT | Komatsu |
|---|---|---|
| OEM parts cost | Higher (10-20% more) | Moderate |
| Aftermarket availability | Excellent | Excellent |
| Global parts network | Best in class | Very strong |
| Parts lead time | Short (1-3 days most markets) | Short (1-5 days) |
Operator Comfort
Both modern CAT and Komatsu cabs are excellent, but:
- CAT 320/323: Slightly larger cab, better visibility, premium seat standard
- Komatsu PC200/210: Excellent ergonomics, intuitive controls, quieter cab
Operator preference is highly subjective. If possible, let your operator try both.
Best Used Buy Recommendations
Choose CAT if:
- You operate in Africa or Latin America (best dealer support)
- Resale value matters (you'll sell within 3-5 years)
- You need maximum power and production speed
- Your operators are already trained on CAT machines
Choose Komatsu if:
- Fuel costs are a major concern
- You want lower purchase price for similar capability
- You operate in Asia or the Pacific (excellent support)
- You value simpler maintenance
- You're running the machine to end of life
Consider Korean Alternatives
For budget-conscious buyers, Hyundai HX220L and Doosan DX225LC offer:
- 25-35% savings over CAT, 10-20% savings over Komatsu
- Competitive performance and improving reliability
- Growing parts networks globally
- Best value for buyers importing from Korea
Compare prices and find the best deals on HeavyWorks. Browse verified listings for CAT, Komatsu, Hyundai, and more.