Parts for Detroit Diesel 471 Turbo for Canada - Engine Water Pump Section

Detroit Diesel 471 Turbo Fresh Water Pump & Cooling System Parts Catalog

The Detroit Diesel 471 Turbo engine represents one of the most dependable mid-range power units of its era—used in marine, industrial, and heavy-duty applications around the world. A properly maintained cooling system ensures these classic engines continue to operate efficiently, preventing overheating and maintaining consistent horsepower output.

This catalog provides a complete overview of Detroit Diesel 471 Turbo engine water pump and cooling system parts, including new and rebuilt water pumps, repair kits, seals, gaskets, hoses, clamps, thermostats, radiators, and accessories—all carefully selected to meet or exceed OEM specifications. Each part in this section is organized by component type for ease of navigation, backed by Diesel Pro Power’s reputation for reliability and worldwide support.

Engine Water Pumps for Detroit Diesel 471 Turbo

Right-Hand Rotation Water Pump

The right-hand rotation fresh water pump is a direct-fit replacement for Detroit Diesel 371, 471, and 671 turbo engines. This heavy-duty pump circulates coolant throughout the engine’s closed-loop cooling system, ensuring stable operating temperatures under demanding marine and industrial conditions.

• Condition: New

• Rotation: Right-Hand

• Application: Turbocharged 471 and compatible 71-series engines

• Construction: Precision-machined impeller and cast iron housing for corrosion resistance and durability

Proper rotation is critical—selecting the correct right-hand or left-hand orientation ensures proper impeller direction and coolant flow. Diesel Pro Power provides expert assistance to confirm fitment for your exact engine configuration.

Left-Hand Rotation Water Pump

For engines configured with opposite drive rotation, the left-hand rotation water pump provides the same performance and reliability.

• Condition: New

• Rotation: Left-Hand

• Application: Detroit Diesel 371, 471, and 671 turbocharged engines

• Function: Maintains coolant circulation through block, head, and turbo cooling passages

Both pumps feature precision bearings and seals designed for extended service intervals, minimizing maintenance frequency even under continuous load conditions.

Gaskets, Seals & Flanges

Water Pump Gasket

The water pump gasket provides a secure, leak-free seal between the pump housing and engine block. Designed from high-temperature resistant material, this gasket prevents coolant seepage and maintains pressure integrity. Always replace gaskets during pump installation or maintenance for optimal performance.

Water Pump Flange

The Detroit Diesel 471 Turbo water pump flange (inside diameter 1.764 inches) ensures a proper mechanical connection between the pump outlet and associated coolant tubing. Machined to exact tolerances, this flange is essential to maintain coolant flow and alignment between components.

Water Pump Outlet O-Ring

A critical sealing component, the O-ring at the outlet prevents coolant leaks where the water pump connects to the manifold. Diesel Pro Power’s replacement O-rings are manufactured from premium elastomer compounds resistant to glycol-based coolant and thermal expansion.

Water Pump Cover Gasket

The water pump cover gasket is a small yet vital part of the system, providing a reliable seal on the cover plate to prevent internal pressure loss. This inexpensive part plays an outsized role in preventing coolant leaks and should always be replaced when servicing the pump.

Water Manifold to Oil Cooler Seals

These seals ensure a watertight connection between the water manifold and the oil cooler housing. Available in multiple outside diameters (2", 2-1/2", and 2-3/4"), these components maintain coolant integrity across the heat exchanger assembly, safeguarding both coolant and lubrication circuits.

Cooling System Hardware & Accessories

Drain Fittings

Draincock fittings, available in both 3/8” and 1/4” sizes, allow convenient draining of coolant for maintenance or winterization. These brass or plated fittings resist corrosion and thread directly into the coolant manifold or radiator, enabling quick system purging without spillage.

Thermostat Housing & Gaskets

Thermostat housing gaskets maintain a tight seal where the thermostat assembly mounts to the cylinder head or coolant manifold. Combined with the proper thermostat, they regulate coolant temperature, ensuring smooth warm-up and efficient operation.

Thermostats for Detroit Diesel 471 Turbo

The Detroit Diesel thermostat rated at 173°F is designed to maintain ideal engine temperature for turbocharged applications. It opens gradually as the coolant warms, balancing flow between the radiator and engine block. Replacing an aging thermostat helps prevent overheating, cold-operation inefficiency, and uneven cylinder temperatures.

Water Pump Repair Kits

For operators maintaining older 471 Turbo engines, Diesel Pro Power offers comprehensive water pump repair kits compatible with both right- and left-hand rotation pumps. Each kit includes:

• Precision bearings

• High-temperature seals

• Impeller shaft components

• Fasteners and O-rings for reassembly

Using these kits allows cost-effective refurbishment of existing pumps, restoring performance while maintaining OEM reliability. Each kit is manufactured with strict adherence to Detroit Diesel specifications.

Radiators and Related Components

Radiator – Industrial Engine

The Detroit Diesel 471 Turbo radiator is engineered for industrial applications requiring continuous cooling under high-load cycles. Constructed with heavy-duty copper-brass or aluminum cores, these radiators efficiently dissipate heat from the coolant circuit, even in harsh ambient temperatures.

Radiator Cap and Necks

Maintaining correct system pressure is essential for coolant performance. Diesel Pro Power supplies:

• 7-lb radiator caps for standard Detroit Diesel cooling systems

• Small and large radiator necks (1.63" to 2.22" diameters) designed to match cap size and mounting orientation

Proper cap pressure ensures the coolant remains in liquid state at elevated temperatures, improving thermal efficiency and preventing vapor lock.

Coolant Bypass and Temperature Regulation

Water Bypass Tube

The water bypass tube connects the thermostat housing to the coolant manifold, ensuring proper circulation during warm-up and thermostat transitions. Constructed from corrosion-resistant metal tubing, it maintains continuous coolant movement even when the thermostat is closed—reducing hot-spot formation within the block.

Temperature Switch

The 205°F temperature switch provides an essential safety function. It activates alarms or shutdown systems when coolant temperature exceeds safe limits. Threaded at 1/2" NPT, it fits Detroit Diesel, Cummins, and Caterpillar engines alike, allowing cross-application standardization for mixed fleets.

Cooling System Maintenance Supplies

Radiator Cleaner

Deposits and corrosion can reduce heat transfer over time. The Detroit Diesel radiator cleaner safely removes scale and residue from cooling passages. It’s formulated specifically for diesel engine materials, available for ground shipping within the U.S. and Canada. Routine use helps maintain maximum thermal efficiency.

Detroit Diesel Engine Paint

The signature Detroit Green paint not only restores authentic appearance but also provides a protective coating against corrosion and heat exposure. Designed for engine blocks and accessories, it resists chipping and chemical attack from diesel fluids, maintaining a professional look on marine and industrial powerplants.

Silicone Coolant Hoses

High-quality silicone coolant hoses offer superior durability compared to standard rubber alternatives. Resistant to temperature extremes and coolant chemicals, these hoses provide long-lasting reliability for Detroit Diesel 471 Turbo engines.

Available sizes include:

• 3/4" to 1" ID hoses for small coolant lines

• 1-1/2" to 3-1/2" ID for main coolant flow circuits

• 4" ID hoses for large radiator and manifold connections

Each hose section is sold in one-foot lengths, allowing customization for specific installations. Their multi-ply reinforced construction ensures flexibility without compromising burst strength, ideal for tight engine compartments and marine environments.

Hose Clamps

Secure hose installation is vital to prevent leaks under pressure. Diesel Pro Power offers a complete selection of coolant and fuel hose clamps, including:

• 10H series clamps: Range 9/16" – 1-1/16"

• Standard clamps: 1" – 1.5", 13/16" – 1-3/4", and larger variants

• Heavy-duty clamps: Up to 3.5" diameter capacity

Each clamp features a stainless-steel band and worm-gear mechanism for consistent tension and corrosion resistance. Using the correct clamp size prevents coolant seepage and ensures long-term reliability in high-vibration applications such as marine propulsion systems.

Water Temperature Gauges Gauges

Diesel Pro Power also supplies mechanical and electrical gauges to monitor engine temperature and system pressure. Options include:

• Mechanical gauges with or without alarm functions

• Electrical gauges for 12-volt and 24-volt systems

• Models compatible with Detroit Diesel 71-series engine panels

Accurate monitoring allows early detection of cooling system irregularities, reducing the risk of costly engine damage.

Importance of Proper Cooling in the Detroit Diesel 471 Turbo

The 471 Turbo engine relies on its fresh water cooling system to maintain consistent internal temperatures, especially under boost conditions where exhaust gas heat increases. The water pump drives coolant circulation through the cylinder block, head, and turbocharger cooling jackets. Over time, heat, vibration, and coolant chemistry can wear out seals, hoses, and gaskets—making regular inspection essential.

Symptoms of a failing water pump or cooling component include:

• Coolant leaks or drips from the pump housing

• Overheating under load

• Reduced coolant flow or pressure

• Unusual bearing noise or vibration

By replacing these components proactively, operators extend engine life, maintain efficiency, and prevent unexpected downtime.

Why Buy Detroit Diesel 471 Turbo Water Pump & Cooling System Parts from Diesel Pro Power

Selecting the right supplier is as vital as choosing the correct component. Diesel Pro Power is the industry’s leading source for Detroit Diesel parts, offering unmatched expertise and global reach.

Global Reputation

Trusted by over 40,000 satisfied customers in 180+ countries, Diesel Pro Power has built a reputation for reliability, quality, and professional service. From commercial vessels to stationary power systems, our customers count on us to keep Detroit Diesel engines running at peak performance.

Premium Quality Assurance

Every pump, gasket, hose, thermostat, and accessory in this catalog is built to meet or exceed Detroit Diesel performance standards. We source only from verified manufacturers, ensuring dimensional accuracy, proper fitment, and long service life.

Comprehensive Catalog Organization

Our website and product catalog are organized by engine model and system, allowing fast and accurate part identification. The 471 Turbo section contains all major cooling system components, ensuring users can find compatible items without guesswork.

Fast Worldwide Shipping

Downtime can be costly. Diesel Pro Power provides fast global delivery to ports, marinas, and industrial sites worldwide, ensuring operators minimize interruptions and maintain productivity.

Expert Technical Support

Our team of Detroit Diesel specialists assists with:

• Determining correct water pump rotation (RH or LH)

• Identifying proper gaskets, seals, and O-rings

• Selecting thermostat ratings for specific operating environments

• Troubleshooting overheating, coolant loss, or circulation issues

This technical expertise helps customers avoid costly errors during installation and ensures long-term reliability.

Additional Cooling System Components Available

Beyond the parts listed here, Diesel Pro Power offers a complete inventory of Detroit Diesel 471 Turbo components, including:

• Heat exchangers and aftercoolers for marine applications

• Expansion tanks and coolant reservoirs

• Coolant filters and conditioners

• Temperature and pressure sensors

• Complete hose kits and mounting hardware

Each part is engineered to integrate seamlessly into the Detroit Diesel 71-series cooling system.

Maintenance Tips for the 471 Turbo Cooling System

1. Regular Coolant Replacement: Use the correct antifreeze mix to prevent corrosion and maintain thermal efficiency.

2. Inspect Pump Bearings and Seals: Early detection of wear prevents failure and coolant loss.

3. Check Hoses and Clamps: Replace any hose showing swelling, cracks, or softness.

4. Flush the System Annually: Use approved cleaners to remove deposits from radiators and heat exchangers.

5. Monitor Temperature Gauges: Consistent readings indicate a healthy cooling system; fluctuations signal potential issues.

Following these steps ensures long-term reliability and reduces operating costs.

The Diesel Pro Power Difference

Diesel Pro Power is far more than a supplier—it’s a trusted global partner dedicated to preserving and enhancing the performance of legacy Detroit Diesel 471 Turbo engines and the entire 71-series family. With decades of experience supplying marine, industrial, and generator operators, Diesel Pro Power has become the world’s most reliable source for premium aftermarket parts and expert service.

Whether you’re maintaining a 471 Turbo marine propulsion engine powering a commercial vessel, an industrial power unit supporting critical infrastructure, or a stationary generator that demands unwavering reliability, Diesel Pro Power delivers a comprehensive support system built around precision, expertise, and efficiency.

Customers benefit from:

• A user-friendly online catalog that organizes parts by engine model, system, and component—ensuring fast, accurate searches with clear product images, multilingual descriptions, and verified specifications.

• Detailed technical documentation and interactive part diagrams, allowing you to visually identify the exact component needed, reducing guesswork and installation errors.

• Rapid order processing and global tracking, backed by a logistics network that ships daily to ports, marinas, and industrial sites in over 180 countries. Every order is handled with care to minimize downtime and ensure timely delivery.

• Proven satisfaction from over 40,000 customers worldwide, including fleet managers, ship operators, power plant technicians, and engine rebuilders who trust Diesel Pro Power to keep their Detroit Diesel engines operating efficiently.

Beyond just selling parts, Diesel Pro Power provides the knowledge, reliability, and peace of mind that only a specialized Detroit Diesel partner can offer. Every interaction is guided by a commitment to quality, longevity, and genuine customer care.

When you buy from Diesel Pro Power, you’re not merely purchasing a water pump, gasket, or thermostat—you’re investing in decades of engineering expertise, a streamlined purchasing experience, and the confidence that comes with knowing your Detroit Diesel 471 Turbo will continue to perform at its best for years to come.

Diesel Pro Power stands as the bridge between historic engine excellence and modern reliability—keeping classic Detroit Diesel engines running strong in today’s demanding world.