Caterpillar C15 Marine Overheating Under Load? Causes
August 26, 2026
- Why Is My Caterpillar C15 Marine Overheating Under Load?
- Caterpillar C15 Marine Engine Parts
- Start With the C15 Seawater Circuit
- Can a Caterpillar C15 Auxiliary Pump Cause Overheating?
- Caterpillar C15 Auxiliary Seawater Pump References
- 397-2684 Caterpillar Auxiliary Sea Water Pump
- Caterpillar 340-7732 / 3407732 Auxiliary Pump
- 340-7732 Caterpillar Auxiliary Sea Water Pump
- Caterpillar 276-5906 / 2765906 Auxiliary Pump
- 276-5906 Caterpillar Auxiliary Sea Water Pump
- Why Exact Pump Identification Matters
- Caterpillar Marine Engine Parts
- Could the C15 Heat Exchanger Be Fouled?
- What About Broken Impeller Pieces?
- Can the Water Temperature Regulator Cause Overheating?
- Don't Ignore the Jacket-Water Circuit
- Could Excessive Propulsion Load Cause C15 Overheating?
- Black Smoke Plus Overheating
- Practical Caterpillar C15 Overheating Check
- Caterpillar C15 Cooling Parts & Internal Links
- Caterpillar Parts
- Request Caterpillar C15 Cooling Parts
- View Caterpillar Auxiliary Sea Water Pump
- Request a Quote
- request@alfamarinespareparts.com
- Alfa Marine Spare Parts
- Frequently Asked Questions
- Why does my Caterpillar C15 overheat only under load?
- Can a C15 seawater pump cause overheating?
- What Caterpillar auxiliary pump numbers should I check?
- Are all of these C15 pump numbers interchangeable?
- Can a dirty heat exchanger cause overheating only under load?
- Can a fouled propeller cause overheating?
- What information should I provide when ordering a C15 seawater pump?