Caterpillar 3412 Fresh Water Pump & Cooling System Catalog

The Caterpillar 3412 engine is one of the most respected high-horsepower diesel platforms, relied on in marine, industrial, construction, and power generation applications. To maintain peak performance, the cooling system must be in top condition, and at the heart of that system is the fresh water pump, supported by hoses, clamps, and repair kits. This catalog provides a comprehensive look at every fresh water pump and cooling system component available for the Caterpillar 3412 engine, expanded into a full reference to help operators, engineers, and maintenance teams find exactly what they need.

Fresh Water Pump for Caterpillar 3412

The main engine-driven fresh water pump is designed to circulate coolant through the block, cylinder heads, and radiator (or heat exchanger in marine applications). The pump ensures consistent temperature control during heavy-duty operation, preventing overheating and extending the service life of the engine.

• Compatibility: This fresh water pump is built specifically for Caterpillar 3412 engines, as well as 3412B, 3412C, and 3414 variations. It supports engines with arrangement numbers such as 1031819, 1031820, 1054832, 1160050, 1243400, 1302549, 1326105, 1433522, 1498154, 1790769, 1797010, 1855890, and many more.

• Durability: Diesel Pro aftermarket pumps are engineered with heavy-duty bearings, precision-machined impellers, and corrosion-resistant housings to withstand extreme temperatures and long operating hours.

• Applications: Marine vessels, standby and continuous-duty generators, mining equipment, oilfield rigs, and large construction machinery powered by the Caterpillar 3412 rely on this pump for stable operation.

Benefits of a New Diesel Pro Aftermarket Pump

1. Maintains proper coolant circulation for balanced temperature control.

2. Reduces risk of cavitation and seal failure common in older pumps.

3. Provides a direct-fit installation for Caterpillar 3412 engines with no modifications.

4. Backed by Diesel Pro’s reputation for serving 40,000+ satisfied customers worldwide.

Fresh Water Pump Repair Kit for Caterpillar 3412

For operators who want to rebuild rather than replace the pump, the Caterpillar 3412 repair kit provides seals, bearings, gaskets, and internal components to restore pump performance.

• Coverage: Works with the same arrangement numbers as the complete pump, ensuring a precise fit across the Caterpillar 3412, 3412B, and 3412C engine series.

• When to Use: Ideal for preventive maintenance or when the pump housing remains in good condition but the internals are worn.

• Advantages: A cost-effective way to extend pump life while keeping the cooling system operating reliably.

Silicone Coolant Hoses for Caterpillar 3412

High-performance silicone hoses are vital to maintaining coolant flow under pressure. Diesel Pro offers a wide range of hose diameters, each designed to withstand high temperatures and resist cracking, swelling, or chemical degradation.

Available Hose Sizes

• 3/4" inside diameter

• 1" inside diameter

• 1 3/4" inside diameter

• 1 7/8" inside diameter

• 2" inside diameter

• 2 1/8" inside diameter

• 2 1/4" inside diameter

• 2 3/8" inside diameter

• 2 1/2" inside diameter

• 2 3/4" inside diameter

• 3" inside diameter

• 3 1/2" inside diameter

• 4" inside diameter

Benefits of Silicone Hoses

1. Temperature Resistance – Withstands extreme operating conditions better than standard rubber hoses.

2. Flexibility – Reduces vibration stress on coolant connections.

3. Longevity – Provides a longer service life, reducing maintenance intervals.

4. Leak Prevention – Offers a more secure seal when paired with high-quality clamps.

Hose Clamps for Caterpillar 3412 Cooling System

Clamps are small but critical components that secure hoses and prevent coolant leaks under pressure. Diesel Pro offers a complete selection of clamps in different sizes to fit all Caterpillar 3412 coolant hoses.

Clamp Options

• Clamp 10H – Range: 9/16" to 1-1/16"

• Clamp 3412320 – Range: 11/16" to 1-1/4"

• Clamp 4920417 – Range: 13/16" to 1-3/4"

• Clamp 5104592 – Range: 1" to 1.5"

• Clamp 3922846 – Range: 1-5/16" to 2-1/4"

Each clamp is built from corrosion-resistant materials to withstand exposure to coolant, heat, and vibration. They provide consistent clamping force and reduce the risk of sudden hose blowouts.

Importance of Cooling System Maintenance on Caterpillar 3412 Engines

Proper cooling is essential to the long life of a Caterpillar 3412. Overheating can cause cylinder liner scoring, piston seizures, and even catastrophic engine failure. Routine inspection of pumps, hoses, and clamps ensures smooth operation.

Common Cooling System Issues

• Leaking water pump seals causing coolant loss.

• Collapsed hoses due to old rubber losing strength.

• Loose or corroded clamps leading to small leaks that become major failures.

• Blocked coolant passages reducing circulation efficiency.

By replacing pumps, repair kits, hoses, and clamps at the correct intervals, operators can avoid costly downtime.

Why Choose Diesel Pro Power for Caterpillar 3412 Fresh Water Pump Parts

When it comes to maintaining or repairing a Caterpillar 3412 engine, selecting the right supplier is just as important as choosing the correct part. Diesel Pro Power has become the trusted source for operators around the world who need dependable fresh water pump components and cooling system parts. Below, we expand on the key reasons why Caterpillar owners and fleet managers continue to rely on Diesel Pro for critical parts.

Global Trust

With more than 40,000 satisfied customers across 180+ countries, Diesel Pro Power has established itself as a leading name in the heavy-duty diesel aftermarket. Caterpillar 3412 engines are used in diverse environments—ranging from offshore vessels in the Gulf of Mexico, to mining trucks in South America, to standby generators in remote regions of Africa. Operators in each of these sectors trust Diesel Pro to deliver the right parts quickly and reliably. This global footprint reflects years of consistent service, where customers know they can count on Diesel Pro’s catalog to keep their equipment running without extended downtime.

Fast Worldwide Shipping

Time is money, especially when a Caterpillar 3412 is powering critical operations such as a drilling rig, cargo vessel, or industrial power plant. Diesel Pro Power ships all orders within 24 hours, ensuring parts are on their way almost immediately after purchase. Every shipment comes with real-time tracking, giving operators visibility into the process from warehouse to delivery point. Whether you are operating in a major port city or a remote mining site, Diesel Pro’s logistics network ensures that your pump, repair kit, or hose arrives as quickly as possible to minimize operational disruptions.

Engine-Specific Catalogs

One of the biggest frustrations for mechanics and engineers is navigating generic catalogs where compatibility is unclear. Diesel Pro eliminates this problem by building dedicated catalogs for each Caterpillar engine model, including the 3412. That means every water pump, gasket, clamp, and hose listed is designed to fit Caterpillar 3412 engines without modification. This attention to detail removes guesswork, prevents costly mistakes, and ensures technicians can order with confidence knowing the part will fit right the first time.

Durability & Precision

Caterpillar 3412 engines often operate under extreme conditions—high loads, long hours, and demanding climates. Diesel Pro aftermarket components are engineered to meet those challenges head-on. Fresh water pumps feature precision-machined impellers for optimal coolant flow, while seals and bearings are built to resist wear over long service intervals. Silicone coolant hoses are designed to withstand higher temperatures and pressures than traditional rubber alternatives, while heavy-duty clamps provide reliable sealing under vibration and stress. Every component in the Diesel Pro catalog is chosen for its ability to deliver lasting durability and dependable performance.

Expert Support

Parts are only part of the solution—technical knowledge is equally important. Diesel Pro Power’s team includes specialists with decades of Caterpillar engine experience, ready to guide customers through installation, troubleshooting, and maintenance questions. From explaining how to identify pump wear, to advising on hose routing for optimal flow, Diesel Pro provides more than just a catalog—it offers expertise. This level of support ensures that operators not only receive the right parts but also the practical knowledge needed to keep the Caterpillar 3412 cooling system working efficiently for years to come.