Caterpillar C32 Raw Water Pump and Cooling System Components Catalog

The Caterpillar C32 is one of the most respected heavy-duty marine engines in the world, powering commercial vessels, offshore support craft, luxury yachts, and industrial marine applications. To keep this engine operating at peak efficiency, its cooling system—anchored by the raw water pump—must be maintained with precision. The raw water pump draws seawater, circulates it through heat exchangers, and ensures the engine remains at optimal operating temperature even under heavy load.

At Diesel Pro Power, we provide a complete aftermarket catalog of Caterpillar C32 raw water pumps, impellers, repair kits, zinc anodes, and silicone coolant hoses—all designed to keep your marine engine’s cooling system reliable and efficient. With over 40,000 satisfied customers worldwide and shipping to more than 180 countries, we are the trusted source for operators who demand durability and minimal downtime.

Marine Water Pump for Caterpillar C32

The raw water pump is the foundation of the Caterpillar C32 cooling system. Built for continuous operation in harsh saltwater environments, the pump circulates seawater through heat exchangers, aftercoolers, and oil coolers. A properly functioning pump prevents overheating and ensures your engine delivers consistent horsepower, whether your vessel is maneuvering in port or running at full throttle offshore.

Our aftermarket C32 marine water pumps are engineered to deliver the same performance and reliability as factory units but at a more cost-effective price point. Each pump is constructed using heavy-duty bronze housings, durable cam liners, and corrosion-resistant materials to withstand the harsh marine environment.

Key Features

• Designed specifically for the Caterpillar C32 engine.

• Heavy-duty construction for marine durability.

• Engineered for proper seawater flow rates to match factory specifications.

• Cost-effective aftermarket solution without compromising reliability.

Gaskets for Pump Installation

A marine water pump is only as reliable as its seals. The gasket for the Caterpillar C32 sea water pump ensures a proper seal during installation, preventing leaks that could reduce flow efficiency or introduce air into the cooling system.

Why Gaskets Matter

• Prevent leaks that lead to reduced cooling efficiency.

• Ensure tight, vibration-resistant sealing.

• Designed to withstand marine temperature extremes.

Replacing gaskets during pump servicing is strongly recommended to guarantee long-term system reliability.

Repair Kits for Caterpillar C32 Sea Water Pumps

Over time, even the most durable marine water pumps require maintenance. Diesel Pro Power offers both major and minor service kits for the Caterpillar C32 raw water pump, giving operators the ability to extend pump life and minimize costly downtime.

Major Service Kit

Includes all critical internal components such as bearings, seals, and wear parts. Recommended for full pump overhauls or when rebuilding a pump that has experienced extended service hours.

Minor Service Kit

Designed for preventative maintenance and smaller repairs, including seals, O-rings, and other components subject to wear. Ideal for regular servicing intervals to avoid unexpected pump failures.

By using our aftermarket service kits, operators can rebuild their pumps quickly and economically, without sacrificing reliability.

Impellers for Caterpillar C32 Raw Water Pumps

The impeller is the moving heart of the raw water pump. A worn or damaged impeller can drastically reduce seawater flow, leading to overheating and costly engine damage.

Features of Our Impellers

• Precision-engineered 10-blade bronze impellers.

• 10 spline drive for secure fitment.

• Designed for smooth, high-volume seawater flow.

• Resistant to wear and marine corrosion.

Regular impeller inspection and replacement should be part of every Caterpillar C32 maintenance program, ensuring uninterrupted cooling performance.

Impeller Pullers

Removing a worn impeller without the proper tool can damage both the impeller and the pump housing. Our impeller pullers are designed specifically for marine water pumps, making impeller replacement straightforward and safe.

Benefits of Using an Impeller Puller

• Prevents pump housing damage during impeller extraction.

• Reduces service time.

• Ensures proper removal even in tight spaces.

Zinc Anodes for Caterpillar C32 Cooling Systems

Galvanic corrosion is one of the greatest threats to marine cooling systems. Zinc anodes, often referred to as “sacrificial anodes,” protect the bronze and stainless-steel components of your raw water pump and heat exchangers by corroding first, thereby extending the life of your expensive hardware.

Why Replace Zinc Anodes Regularly?

• Prevents costly corrosion damage inside the pump and cooling system.

• Easy and affordable preventative maintenance.

• Available in multiple thread sizes and dimensions to fit all Caterpillar C32 system requirements.

Diesel Pro Power carries a full catalog of zinc anodes, from 1/4” NPT to larger 1 1/4” fittings, ensuring you have the correct anode for every application.

Silicone Coolant Hoses

While raw water pumps handle seawater circulation, silicone coolant hoses handle internal coolant flow between engine components. High-quality hoses are essential to prevent leaks, withstand vibration, and resist high engine room temperatures.

Features of Our Silicone Hoses

• Available in multiple diameters (1” to over 2 1/4”).

• Heat and pressure resistant for marine environments.

• Reinforced for long-term durability.

• Flexible and easy to install.

Replacing old, cracked, or leaking hoses ensures uninterrupted coolant circulation and protects the Caterpillar C32 from overheating.

Why Choose Diesel Pro Power for Caterpillar C32 Cooling Parts

When it comes to sourcing raw water pumps and cooling system components for the Caterpillar C32, Diesel Pro Power offers unmatched advantages:

• 40,000+ Satisfied Customers Worldwide – Trusted by commercial fleets, offshore operators, and private yacht owners.

• Global Shipping to Over 180 Countries – Fast, trackable deliveries ensure parts arrive when you need them.

• Complete Marine Catalog in One Place – From pumps and impellers to zincs, gaskets, and hoses.

• Exclusive Focus on Marine & Industrial Engines – No distractions from automotive; only heavy-duty engines like the C32.

• Expert Technical Support – Guidance on impeller sizing, zinc replacement schedules, pump servicing, and troubleshooting.

By choosing Diesel Pro Power, Caterpillar C32 operators gain a reliable aftermarket partner dedicated to reducing downtime and extending engine life.