Caterpillar 3306 Engine Water Pump & Cooling System Components

The Caterpillar 3306 engine is a workhorse widely trusted in industrial, construction, power generation, and marine applications. A critical part of keeping this engine operating at peak efficiency is its cooling system, with the freshwater pump at the core. The water pump circulates coolant through the block, cylinder head, radiator, and auxiliary cooling components, preventing overheating and ensuring consistent engine performance under heavy load.

At Diesel Pro Power, we provide high-quality replacement freshwater pumps, hoses, and clamps specifically designed for Caterpillar 3306 engines. All parts are engineered for long service life, precise fit, and reliable operation, helping you reduce downtime and extend the life of your equipment.

Engine Water Pumps for Caterpillar 3306

Standard Replacement Water Pump for Caterpillar 3306

A direct replacement pump built to OEM specifications, designed for reliable coolant circulation in Caterpillar 3306 engines. This pump ensures steady flow rates, robust impeller design, and durable seals to withstand demanding environments such as mining, oilfield work, and heavy construction.

Heavy-Duty Water Pump for Caterpillar 3306 Applications

For engines operating in severe duty cycles, the heavy-duty pump option provides reinforced bearings and high-strength impellers. This ensures smoother performance under high RPM and extended service intervals. Ideal for marine propulsion, drilling rigs, and generator sets.

Turbocharged 3306 Water Pump Version

The turbocharged Caterpillar 3306 engines generate additional heat, requiring enhanced coolant circulation. Our water pump for turbocharged 3306 configurations delivers optimized flow and efficiency, keeping operating temperatures balanced even under continuous high load.

Multi-Application Water Pump Coverage

In addition to the Caterpillar 3306, several pump models also fit related engines such as the 3304, 3306B, D330C, and G-series generator sets. This cross-compatibility allows operators with mixed fleets to streamline maintenance and minimize spare parts inventory.

Coolant Hoses for Caterpillar 3306

High-temperature silicone coolant hoses are an essential part of the Caterpillar 3306 cooling system. These hoses provide flexibility, chemical resistance, and durability under extreme conditions. Diesel Pro offers hoses in a wide range of diameters to match every connection point in the system.

• 1” to 2” Inside Diameter Hoses – Commonly used for main coolant flow between the water pump, radiator, and block passages.

• 2” to 3” Inside Diameter Hoses – Designed for larger coolant transfer lines, ensuring unrestricted flow and efficient heat exchange.

• 3” to 4” Inside Diameter Hoses – Heavy-duty hoses for turbocharged and high-output variants of the Caterpillar 3306, supporting higher coolant volumes.

Each hose is reinforced for long-term use, reducing the risk of premature wear, leaks, or collapse under suction.

Hose Clamps for Caterpillar 3306 Cooling System

Reliable clamping is just as important as the hoses themselves. Our clamps provide a secure seal to prevent coolant leaks and maintain system pressure.

• Small Diameter Hose Clamps – For 3/4" to 1.5" connections commonly found on heater lines and smaller coolant passages.

• Medium Diameter Hose Clamps – For 1.5" to 2.5" coolant lines between the pump, radiator, and cylinder head.

• Large Diameter Hose Clamps – For oversized hoses up to 4", ensuring durability and tight fitment under vibration.

Clamps are made from corrosion-resistant materials, ensuring long life even in marine or high-humidity environments.

Gauges for Caterpillar 3306 Cooling System Monitoring

To protect your investment in a Caterpillar 3306 engine, it’s important to monitor coolant temperature, pressure, and overall system performance. We supply mechanical and electrical gauges designed for Caterpillar applications.

• Mechanical Gauges – Reliable, no-power monitoring with direct engine connections.

• Electrical Gauges (12V / 24V) – Easy-to-read digital or analog displays with alarm systems for early warnings.

• Gauges with Integrated Alarms – Provide automatic alerts if coolant temperature exceeds safe limits, preventing costly engine damage.

Why Buy a Cooling Pump for Your Caterpillar 3306 from Diesel Pro Power

When it comes time to replace the cooling pump on your Caterpillar 3306, the supplier you choose matters just as much as the part itself. The water pump is the lifeline of the cooling system, and a failure can lead to catastrophic engine damage, costly downtime, and lost productivity. That’s why thousands of operators around the world turn to Diesel Pro Power as their trusted source for Caterpillar 3306 water pumps and cooling system components.

Proven Reliability with 40,000+ Customers Worldwide
Diesel Pro has supplied high-quality replacement parts to more than 40,000 satisfied customers across the globe. Whether you’re running a Caterpillar 3306 in construction equipment, a generator set, or a marine vessel, you can count on us to deliver the same standard of reliability trusted by professionals for decades.

OEM-Quality Fit and Performance
Our Caterpillar 3306 cooling pumps are built to meet or exceed OEM standards, ensuring a precise fit and long service life. Unlike generic aftermarket options, every pump we carry is designed specifically for Caterpillar engines, giving you peace of mind that installation will be seamless and performance will match or outperform the original.

Fast Worldwide Shipping for Minimal Downtime
We know how costly downtime can be. That’s why Diesel Pro Power stocks what we sell and offers fast worldwide shipping. When your Caterpillar 3306 cooling pump fails, we can get a replacement to you quickly—no matter where your operation is located—so your equipment spends less time offline.

Dedicated Caterpillar 3306 Catalog
One of the biggest challenges in sourcing replacement parts is finding the right match for your exact engine. With our dedicated Caterpillar 3306 catalog, there’s no guesswork. You’ll find water pumps, hoses, clamps, and gauges all in one place, organized for your engine model. This reduces ordering mistakes and ensures you get the correct pump the first time.

Expert Technical Support
Our knowledgeable team is available to help you choose the right cooling pump for your Caterpillar 3306 engine. Whether you’re working with a naturally aspirated, turbocharged, or generator set configuration, we’ll guide you toward the correct replacement so you can install with confidence.

Backed by Diesel Pro’s Commitment to Quality
When you buy from Diesel Pro Power, you’re not just buying a part—you’re investing in reliability. Every pump is tested and inspected to ensure it will stand up to the demanding environments Caterpillar 3306 engines operate in, from construction sites to offshore vessels.