Caterpillar C30 Marine Diesel Engine Heat Exchanger Parts, Gaskets & Service
MechPro LLC – Precision Parts, Maintenance & Service for CAT® Marine Heat Exchangers
Caterpillar C30 Heat Exchanger Gaskets, Plates & Seals
MechPro supplies heat exchanger gaskets, titanium plates, and seals for Caterpillar (CAT) C30 1550 HP Marine Diesel Engines.
We stock and ship C30 marine heat exchanger parts worldwide, with full tracking and fast turnaround.
If you need help identifying your part, simply provide your Caterpillar model number, or send a photo or line drawing (front and side view) of your heat exchanger — our technical team will assist you in selecting the correct components.
We understand the importance of delivering quality parts on time. Every order includes tracking information and technical support.
To Schedule Parts & Service Today
Call 1 (800) 249-6709 or Use our RFQ Form

New CAT C-30 heat exchanger plates ready for install.

Disassembled heat exchanger parts ready for cleaning.

CAT C-30 marine heat exchanger being serviced.

Stacking new CAT C-30 heat exchanger plates in refurbished unit.

CAT C-30 marine heat exchanger unit ready for service.
Why Choose MechPro
- Worldwide Shipping – Fast and reliable delivery of all Cat® marine heat exchanger parts.
- Genuine & Aftermarket Options – OEM-spec compression, heat tolerance, and installation compatibility.
- Expert Support – Send us your serial number, part code, or image for instant identification help.
- Trusted Supplier – Over 15 years of heat exchanger service expertise across marine, refinery, and power generation industries.
Precision-Engineered for Reliability
Long-term durability, high fuel efficiency, simplified service, and long-life-to-overhaul — Cat® marine engines are designed for maximum productivity and minimal downtime.
A consistent maintenance schedule extends your Caterpillar engine’s lifespan and performance.
MechPro supports that mission by providing exact-fit heat exchanger components built to OEM specifications.

New plate packs for CAT C-30 heat exchanger

CAT C-30 heat exchanger boxed for shipping.

Refurbished heat exchanger boxed and ready for delivery.
To Schedule Parts & Service Today
Call 1 (800) 249-6709 or Use our RFQ Form
| Component | Part Numbers |
|---|---|
| PLATE AS | 327-1115, 327-1133, 327-1134, 327-1135, 327-1136, 327-1137 |
| SEAL | 149-2213 |
| BOLT (5/8-11×3-IN) | 164-4538 |
| FRAME – FRONT | 300-5620 |
| SPACER | 300-5621 |
| FRAME – REAR | 300-9986 |
| LINER | 327-1099 |
| COLLAR | 327-1101 |
Product Overview
Heat Exchanger Gaskets
Create a tight, leak-free seal between exchanger plates. Essential for efficient operation and fluid isolation.
Heat Exchanger Plates
Precision-engineered titanium plates maximize heat transfer efficiency, ensuring consistent cooling for C30 engines.
Heat Exchanger Seals
Durable elastomeric seals prevent leaks at joints and maintain proper pressure within the system.
Together, these components sustain optimal engine cooling performance, prevent overheating, and extend engine life.
Caterpillar C30 DITTA Marine Propulsion Engine Specs
- Model: C30
- Horsepower: 1550 HP
- RPM: 2300
- Fuel Type: Diesel
- Serial Prefix: CLX
- Arrangement Number: 202-7446
- Classification: Marine / Offshore
- Enclosure: Open
Request a Quote
Whether you need a single gasket or a full heat exchanger rebuild kit, MechPro can help.
📞 Call: 1 800 249-6709
📧 Email: [email protected]
Or simply use our Request for Quote form to send us your engine model and photos of the exchanger — we’ll handle the rest.
Frequently Asked Questions (FAQs)
Q: What are typical marine applications for the CAT C30?
A: Typical marine applications for the CAT C30 include luxury yachts, commercial fishing boats, workboats like tugs, high-speed ferries, and other passenger vessels. Its robust construction, reliability, and a balance of power and quiet operation make it suitable for a wide range of demanding, as well as pleasure, uses.
Commercial applications
- Workboats and Tugboats: The engine’s ability to handle heavy loads and operate consistently in demanding conditions is ideal for towing and other heavy-duty work.
- Commercial Fishing: Its robust construction and power are well-suited for the continuous, demanding requirements of commercial fishing operations.
High-Speed Ferries: The C30’s power and responsiveness are beneficial for vessels requiring high speeds and maneuverability. - Passenger Vessels: It is a reliable option for smaller ferries and other passenger boats that require dependability for carrying people.
- Offshore Service Boats: The C30 is capable of handling the harsh environments and continuous operation found in offshore service roles.
Q: How often should heat exchanger plates and gaskets be replaced for the CAT C30?
A: For a CAT C30, replace gaskets during each heat exchanger disassembly and inspect/clean the plates at least every 1,000 hours or annually. The plates should be replaced when there are signs of leakage, corrosion, or reduced efficiency, while gaskets are replaced whenever the unit is disassembled.
Recommended maintenance schedule
- Gaskets: Always replace gaskets when you disassemble the heat exchanger, as they are wear components that must be replaced to prevent leaks.
- Plates: Inspect and clean the plates every 1,000 hours or annually, whichever comes first.
- Plate replacement: Replace the plates if they are pitted, thinned, warped, or show signs of leakage or reduced heat transfer efficiency.
Additional recommendations
- Flush the seawater side regularly to remove scale and debris.
- Monitor coolant quality and replace it according to the manufacturer’s service intervals.
- Check the raw water pump for wear and impeller condition.
Q: Are MechPro parts compatible with C30 engines?
A: Yes, MechPro parts are compatible with Caterpillar C30 engines, specifically heat exchanger components such as plates, gaskets, and seals.
MechPro supplies OEM-grade, direct-fit aftermarket components for a wide range of Caterpillar diesel engines, including the C30, C32, C15, C18, and others used in marine and industrial applications.
When ordering parts, it is recommended to provide the engine serial number (ESN) or configuration details to ensure the exact part match for your specific C30 engine heat exchanger assembly. MechPro also offers services like cleaning and rebuilding existing heat exchanger plate packs.
Q: Do most CAT C30 engines use shell and tube or plate and frame heat exchangers?
A: Most CAT C30 engines use plate and frame heat exchangers, specifically an integrated titanium plate heat exchanger, to provide a compact and efficient cooling solution. While some other Caterpillar engines use shell and tube designs, the C30’s design integrates cooling system components into this plate-type heat exchanger, which reduces engine size and enhances reliability.
- Plate and frame design: The C30 uses a plate-type heat exchanger with stacked, precision-engineered titanium plates for efficient heat transfer.
- Integrated system: The cooling system’s deaerators, crossover pipe, and expansion tank are integrated into the heat exchanger unit, making the system more compact.
- Benefits: This design provides advantages such as reduced engine size, improved reliability, and simplified maintenance.
Disclaimer
All manufacturer names, part numbers, and product descriptions are provided for reference and identification purposes only. Caterpillar®, CAT®, and associated model names and numbers are registered trademarks of Caterpillar Inc.
MechPro is not an authorized dealer for Caterpillar Inc. and is not affiliated with the company. Our inventory is constantly changing and may include both genuine OEM parts and high-quality aftermarket replacements. Unless explicitly stated, we do not guarantee that a listed item is manufactured by the original equipment manufacturer.
Product images, diagrams, and specifications are for reference only and may not exactly match the item shipped. Customers should use original part numbers to verify compatibility and determine the most suitable replacement for their needs.
