Caterpillar D330 Freshwater Pump & Cooling System Catalog

The Caterpillar D330 engine is part of the legendary 3300 series, a line of durable, mid-range diesel engines used in a wide variety of heavy-duty applications including construction equipment, industrial machines, power generation, and marine auxiliary systems. One of the most critical systems keeping the D330 running smoothly is its cooling system, and at the heart of that system is the freshwater pump.

A properly functioning cooling system ensures that the D330 engine maintains optimal operating temperatures, prevents overheating, and delivers consistent performance under load. Diesel Pro Power supplies premium-quality Caterpillar D330 water pumps, hoses, and clamps to keep your engine operating at OEM specifications. With over 40,000+ satisfied customers worldwide, Diesel Pro has become the trusted choice for Caterpillar parts with guaranteed fitment, fast global shipping, and expert technical support.

Engine Water Pumps for Caterpillar D330

Engine Water Pump for Caterpillar 3304, 3306, D330

This replacement water pump is designed for Caterpillar D330 engines as well as related models like the 3304 and 3306. Built to OEM-quality standards, it ensures precise coolant circulation to maintain proper operating temperatures. Whether installed in a generator set, industrial compressor, or construction machine, this pump provides reliable cooling performance.

Key Benefits:

• OEM-quality construction for long service life

• Maintains proper coolant flow under demanding loads

• Reduces risk of overheating and premature engine wear

• Direct replacement for factory-installed pumps

Engine Water Pump for Caterpillar 3304, 3306, D330 (Alternate Version)

Another variation of the Caterpillar D330 pump is available for specific arrangements and applications. This version offers the same robust build quality and reliable performance while accommodating certain design differences found in D330 and 3300-series engines.

Ideal Uses:

• Replacement during scheduled overhauls

• Emergency breakdown repairs in field conditions

• Preventive maintenance to avoid catastrophic failures

Engine Water Pump for Caterpillar 3306, 3304B, 3304, 3306B, D330C, D333C

This pump expands compatibility to additional Caterpillar models, including later versions like the D330C and D333C. Caterpillar introduced variations in casting and impeller design over the years, and this pump is engineered to fit multiple versions.

Highlights:

• Compatible with early and late 3300-series engines

• Designed for heavy-duty use in construction and industrial machinery

• Precision-balanced impeller ensures smooth coolant flow

• Easy installation with no modifications required

Engine Water Pump for Caterpillar 3304, 3304B, G3304B, 3306, G3306B, 3306B, D330C, XQG135, D333C

This versatile pump is designed to work with both standard Caterpillar 3300-series engines and generator set variants (designated by “G”). If you’re running a Caterpillar-powered generator for continuous-duty power, this pump is a critical part of the cooling system.

Applications:

• Caterpillar D330 industrial engines

• G-series generator sets requiring extended duty cycles

• Construction, agriculture, and material handling equipment

Silicone Coolant Hoses for Caterpillar D330

The water pump cannot work effectively without reliable coolant hoses. Diesel Pro Power supplies premium silicone coolant hoses in a wide variety of inside diameters to fit Caterpillar D330 cooling systems. Unlike traditional rubber hoses, silicone hoses provide superior resistance to high temperatures, pressure, and coolant chemicals.

Advantages of Silicone Hoses:

• Extended service life compared to rubber

• Withstand higher operating temperatures

• Resistant to cracking, hardening, and leaks

• Perfect fit for Caterpillar D330 engines

Available sizes for D330 cooling systems include:

• 1" Inside Diameter (ideal for small coolant circulation lines)

• 1 3/4" Inside Diameter (commonly used in mid-sized connections)

• 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 (used for larger radiator and pump connections)

Each hose is sold by the foot, giving you the flexibility to cut exact lengths needed for your application.

Hose Clamps for Caterpillar D330 Cooling Systems

A strong hose is only as reliable as the clamp securing it. Diesel Pro offers heavy-duty clamps specifically sized for Caterpillar D330 coolant and fuel hoses. These clamps maintain a tight, leak-proof seal even under pressure surges and temperature fluctuations.

Clamp Options:

• Standard Fuel & Coolant Hose Clamp (9/16"–1-1/16") – for smaller hose connections

• Medium Hose Clamp (11/16"–1-1/4") – ideal for mid-range coolant hoses

• Heavy-Duty Clamp (13/16"–1-3/4") – for larger hoses under high load

• Adjustable Clamps (1"–1.5") – versatile, secure fitment

• Oversized Clamps (up to 3") – for radiator and main coolant hoses

Features:

• Corrosion-resistant construction for long life

• Smooth edges to prevent hose damage

• Designed to hold firm in extreme conditions

Mechanical & Electrical Gauges for Monitoring Cooling Performance

In addition to pumps, hoses, and clamps, monitoring engine temperature is vital for Caterpillar D330 longevity. Diesel Pro offers a range of mechanical and electrical gauges that provide accurate readings to ensure your cooling system functions properly.

Options include:

• Mechanical gauges (standard or with alarms)

• Electrical gauges (12V and 24V versions available)

• Easy-to-read displays for quick monitoring

• Compatible with Caterpillar D330 engine panels

A reliable gauge allows operators to detect early signs of overheating before major damage occurs.

Why the Cooling System is Critical for Caterpillar D330 Engines

The Caterpillar D330 is a heavy-duty diesel engine designed for high-output performance. However, diesel engines generate significant heat during combustion. Without an effective cooling system, engine components such as pistons, cylinder liners, and cylinder heads would fail prematurely.

Functions of the Cooling System:

1. Maintains optimal operating temperature for efficiency

2. Prevents overheating during heavy loads

3. Protects lubricating oil from thermal breakdown

4. Reduces wear on gaskets, seals, and other engine parts

5. Increases overall lifespan of the engine

By keeping coolant circulating properly, the freshwater pump acts as the heart of the cooling system, ensuring long-term reliability.

Applications of Caterpillar D330 Engines

The D330 engine has powered a variety of Caterpillar equipment and industrial applications over the years, including:

• Construction machinery (dozers, graders, loaders)

• Oilfield equipment

• Marine auxiliary power units

• Agricultural machinery

• Stationary power generation units

• Material handling equipment

In all these applications, a reliable water pump and cooling system are essential to minimize downtime and protect your investment.

Why Buy Caterpillar D330 Water Pumps & Cooling Parts from Diesel Pro Power

Choosing the right supplier for Caterpillar D330 parts is just as important as selecting the correct component. Diesel Pro Power is the leading online source for Caterpillar engine parts, trusted by operators in more than 200 countries.

Here’s why customers worldwide choose Diesel Pro Power:

• 40,000+ satisfied customers rely on us for their engine parts needs.

• OEM-quality fitment guarantees direct replacement with no guesswork.

• Fast worldwide shipping ensures you receive parts when you need them, minimizing downtime.

• Dedicated Caterpillar D330 catalog makes it easy to order with confidence.

• Expert support from knowledgeable staff to help identify the correct part for your engine.

• Competitive pricing without sacrificing quality or reliability.