Caterpillar 3512C Engine Overhaul Kits

The Caterpillar 3512C is one of the most trusted heavy-duty diesel engines in the Caterpillar 3500 series, widely used in marine propulsion, offshore drilling, power generation, and industrial applications. Known for its durability, high horsepower capacity, and long service life, the 3512C engine eventually requires a complete overhaul to restore peak performance.

At Diesel Pro Power, we offer complete Caterpillar 3512C overhaul kits designed to simplify the rebuild process, minimize downtime, and provide everything you need in one reliable package. With more than 40,000 satisfied customers worldwide, we are the go-to source for premium aftermarket engine parts and rebuild solutions.

What Is Included in a Caterpillar 3512C Overhaul Kit?

A complete engine overhaul kit is designed to replace all major wear components during a rebuild. These kits are engineered for compatibility with the Caterpillar 3512C engine family and include all the essential components to restore the engine to OEM-level performance.

Major Components in the Kit

• Pistons and Liners – Forged for strength and precision-engineered for correct clearances and long service life.

• Piston Rings – Designed for superior sealing to reduce blow-by and maintain compression.

• Wrist Pins and Retainers – Built to withstand the heavy load cycles of the 3512C.

• Main Bearings and Rod Bearings – Manufactured to precise tolerances to ensure smooth crankshaft rotation.

• Thrust Washers – Critical to controlling axial movement of the crankshaft.

• Full Gasket Set – Includes head gaskets, oil seals, o-rings, and all necessary sealing components.

• Cylinder Head Components – Depending on the kit, may include valves, springs, seals, and guides.

These comprehensive kits ensure that every major internal wear item is replaced, restoring reliability and extending the service life of the engine.

Overhaul Gasket Sets for Caterpillar 3512C

Alongside complete rebuild kits, overhaul gasket sets are available for Caterpillar 3512 engines. A gasket set ensures proper sealing during engine reassembly and prevents leaks under high-pressure and high-temperature conditions. The gasket kit typically includes:

• Cylinder head gaskets

• Exhaust manifold gaskets

• Intake manifold gaskets

• Valve cover gaskets

• Oil pan gasket

• Water pump seals

• Turbo mounting gaskets

• Fuel system seals and o-rings

Whether you are performing a partial rebuild or a complete overhaul, a fresh gasket set is critical to long-term performance.

Compression Ratios in Caterpillar 3512C Overhaul Kits

Different Caterpillar 3512C engine arrangements may use pistons with varying compression ratios. Compression ratio is the measure of how much the air-fuel mixture is compressed before ignition, directly affecting power, efficiency, and fuel consumption.

• Higher Compression Ratios – Provide more power and efficiency but place greater stress on internal components.

• Lower Compression Ratios – Offer smoother operation and may be used in certain marine or generator applications where longevity and steady performance are prioritized.

When choosing a rebuild kit, it is important to match the correct piston and compression ratio to your specific engine arrangement. Our team can assist in identifying the right configuration for your application.

Applications of the Caterpillar 3512C Engine

The Caterpillar 3512C is a workhorse engine powering some of the most demanding industries worldwide. Rebuild kits are commonly used in engines serving the following applications:

Marine

• Offshore supply vessels

• Tugboats

• Fishing fleets

• Passenger ferries

• Workboats

Power Generation

• Standby power plants

• Continuous duty generators

• Oilfield power stations

Industrial

• Mining equipment

• Pumping stations

• Offshore drilling rigs

An overhaul kit ensures these engines continue to deliver reliable service in environments where downtime can be extremely costly.

Benefits of Using a Complete 3512C Overhaul Kit

Rebuilding a Caterpillar 3512C using a complete kit provides numerous advantages over sourcing individual parts.

• Time Savings – All critical components are included in one kit, eliminating the need to order multiple parts separately.

• Guaranteed Compatibility – Kits are designed to work specifically with Caterpillar 3512C engines, ensuring proper fitment and function.

• Reduced Downtime – Fewer delays during rebuild projects mean faster turnaround and quicker return to service.

• Cost Efficiency – Bundled kits are typically more affordable than buying each part individually.

• Reliability – Using all-new matched components increases the chances of a successful, long-lasting rebuild.

Choosing the Right Overhaul Kit for Your 3512C

Not all Caterpillar 3512C engines are identical. Differences in arrangement numbers, compression ratios, and applications mean that selecting the right overhaul kit is crucial.

When selecting a kit, consider:

• Engine Arrangement Number – Determines the exact specifications for pistons, liners, and other components.

• Application Requirements – Marine vs. power generation may influence compression ratio or piston design.

• Level of Rebuild – A full kit replaces all wear items, while a gasket-only set may be suitable for partial rebuilds.

If you are unsure which kit best matches your engine, Diesel Pro Power’s technical experts can guide you to the right choice.

Diesel Pro Power – Your Trusted Source for Caterpillar 3512C Rebuild Kits

With a global reputation and over 40,000 satisfied customers, Diesel Pro Power is the leading supplier of Caterpillar 3512C overhaul kits and parts. Our commitment includes:

• Worldwide Shipping – Fast and reliable delivery no matter where your engine operates.

• Extensive Inventory – Thousands of Caterpillar engine parts in stock and ready to ship.

• Expert Support – Knowledgeable team members available to help identify the correct kit.

• Proven Reliability – Supplying fleets, shipyards, and industrial operators for decades.

Whether you’re maintaining a marine fleet or servicing a stationary power generator, Diesel Pro Power delivers the parts and expertise you need.