When a Caterpillar 3512B-HD reaches the end of its service life — or has accumulated too many running hours and defects to justify a standard repair — a complete rebuild is often the most reliable and cost-effective solution. At Diesel Power Holland, we have been carrying out full engine rebuilds to Caterpillar standards since 1976. Our fully equipped workshop in Moerdijk, the Netherlands, gives us everything we need to disassemble, inspect, recondition, and reassemble heavy-duty marine diesel engines to factory specifications.

About the Caterpillar 3512B-HD

The Caterpillar 3512B-HD is a V12 four-stroke diesel engine built for demanding marine and industrial applications. With an output of 1,425 kW (1,911 HP) at 1,600 rpm, it is commonly used in commercial vessels, dredging equipment, offshore support vessels, and heavy industrial power generation. The Heavy-Duty (HD) designation indicates the engine is rated for the most demanding duty cycles, requiring precise workmanship during any rebuild or overhaul.

Key specifications of the unit we rebuilt:

• Model: Caterpillar 3512B-HD
• Prefix: S2J
• Power output: 1,425 kW / 1,911 HP @ 1,600 rpm
• Arrangement number: 2435675
• Engine type: SCAC (Separate Circuit Aftercooled)
• Cooling: Keel cooling
• Starting system: Air starter
• Monitoring: Marine Power Display
• Configuration: Left-hand service engine
• Rating: Marine medium duty B rating
• Rebuilt to: Caterpillar factory standards

The Rebuild Process

A customer approached Diesel Power Holland with a Caterpillar 3512B-HD that had accumulated significant running hours and presented multiple defects. After a thorough technical assessment, we advised — in close consultation with the customer — that a complete rebuild was the correct course of action rather than a component-level repair.

Our rebuild process for the 3512B-HD included full disassembly, detailed inspection of all components, replacement of worn and damaged parts using genuine Caterpillar parts from our stock of over one million components, and complete reassembly to Caterpillar specifications. Throughout the process, our technicians — all trained to high-level Caterpillar service standards — documented every step to ensure full traceability and quality control.

The result is an engine that performs as close to new as possible, with a significantly extended service life and a clear maintenance history.

Why Choose Diesel Power Holland for Your Caterpillar Rebuild?

Diesel Power Holland is an independent specialist in used, reconditioned, and rebuilt Caterpillar diesel engines for marine and industrial applications. With over 45 years of experience and a purpose-built workshop in the Netherlands, we offer a level of technical depth that most dealers and repair shops cannot match.

What sets us apart:

• Over 45 years of specialist experience with Caterpillar marine and industrial engines
• Fully equipped workshop for complete rebuilds and overhauls
• Access to more than 1,000,000 Caterpillar parts on stock
• All technicians trained to Caterpillar service standards
• Transparent consultation — we always advise the solution that best fits your situation
• Worldwide transport with all required documentation

Whether your Caterpillar 3512B-HD needs a full rebuild, a component overhaul, or an inspection, our team will assess the situation and recommend the right approach. We work with customers across the globe and can arrange worldwide logistics from our yard in Moerdijk.

Request a Rebuild Quote for Your Caterpillar 3512B-HD

Do you have a Caterpillar 3512B or 3512B-HD that requires a rebuild or major overhaul? Contact our team directly. We will assess your engine’s condition, discuss the options, and provide a clear and detailed proposal — with no obligation.

📞 +31 (0)168 388 488 ✉️ info@dieselpowerholland.com