Detroit Diesel 16V71 Turbo – Fresh Water Pump & Cooling System Components Catalog

The Detroit Diesel 16V71 Turbo engine is one of the most iconic high-horsepower engines in the legendary Series 71 lineup. Known for powering commercial vessels, tugboats, offshore support ships, industrial machinery, and heavy-duty generator sets, the 16V71 Turbo is built to deliver reliable performance under punishing workloads. One of the most important aspects of maintaining this powerhouse is its cooling system, and at the heart of that system lies the fresh water pump.

This catalog provides a complete overview of the fresh water pump (also known as the coolant pump) and all related cooling system components for the Detroit Diesel 16V71 Turbo engine. From the pump itself to the smallest gasket or hose clamp, every part is designed to keep your engine operating at safe temperatures, preventing overheating and ensuring years of dependable service.

Fresh Water Pumps for Detroit Diesel 16V71 Turbo

Marine Fresh Water Pump

The marine version of the Detroit Diesel 16V71 Turbo fresh water pump is engineered specifically for vessels operating in saltwater environments. This pump circulates coolant through the cylinder block, cylinder heads, and heat exchangers, ensuring that engine temperatures remain stable even under continuous duty. Built for endurance, the marine water pump is typically rebuilt and tested to factory standards, with a refundable core program that makes replacement both economical and sustainable.

Industrial Fresh Water Pump

For land-based or stationary applications such as power generation, pumps, and heavy industrial machinery, the Detroit Diesel 16V71 Turbo industrial fresh water pump delivers constant coolant circulation. This pump is designed to withstand extended duty cycles and high operating loads. Its robust housing and precision-fitted internal components make it ideal for industrial environments where downtime is not an option.

Fresh Water Pump Repair Kits

Repair kits provide all of the necessary components to rebuild a Detroit Diesel 16V71 Turbo fresh water pump, restoring it to like-new performance without the need for a full pump replacement.

• Standard Repair Kit – Includes seals, bearings, and wear items necessary for a standard rebuild. Perfect for engines running in light to moderate service.

• High-Capacity Repair Kit – Designed for turbocharged and high-output 16V71 engines. Contains upgraded seals, bearings, and cooling components for maximum flow and durability.

By using these repair kits, operators can extend the service life of their pumps, maintain cooling efficiency, and avoid costly unscheduled downtime.

Gaskets & Seals for Detroit Diesel 16V71 Turbo Cooling Systems

Sealing components are critical to keeping coolant contained within the system and preventing leaks that can lead to overheating. Diesel Pro Power supplies premium aftermarket gaskets and seals engineered for the 16V71 Turbo.

• Water Pump Cover Gaskets – Provide a secure seal between the water pump housing and cover plate.

• Water Pump Shaft Seals – Prevent coolant from leaking around the rotating shaft of the pump, a common wear point in older pumps.

• Water Manifold to Oil Cooler Seals – Ensure leak-free connections between coolant manifolds and the oil cooler housing. Available in different sizes to fit specific manifold connections.

• Block Outlet Gaskets – Seal the coolant outlets at the engine block, ensuring that coolant flows only where it is intended.

High-quality seals are vital in both marine and industrial applications, where even small leaks can escalate into major problems if left unaddressed.

Thermostats & Temperature Control

Thermostats regulate coolant flow and help the Detroit Diesel 16V71 Turbo maintain proper operating temperature across different load conditions.

• 160-Degree Thermostat – Opens at a lower temperature, ideal for cooler climates or applications where rapid warm-up is less critical.

• 170-Degree Thermostat – The most common setting for 16V71 Turbo engines, balancing fuel efficiency and performance.

• 180-Degree Thermostat – Suited for high-duty cycles and industrial engines where maximum operating temperature control is required.

Supporting components include thermostat seals and gaskets, which ensure the thermostat housing remains leak-free. Without these elements, coolant can bypass the thermostat, reducing its ability to regulate temperature properly.

Radiator & Cooling Accessories

The radiator and auxiliary components of the cooling system are just as important as the pump itself. Diesel Pro Power provides a full line of accessories for the Detroit Diesel 16V71 Turbo cooling system, including:

• Radiator Caps – Maintain system pressure and prevent coolant from boiling. Available in different pressure ratings to match application requirements.

• Radiator Cap Necks – Provide the mounting base for radiator caps, available in both small and large sizes.

• Radiator Cleaner Solutions – Designed to safely remove scale, rust, and mineral buildup inside the cooling passages, restoring lost efficiency and preventing overheating.

Coolant Temperature Monitoring

Monitoring engine temperature is essential for safe and efficient operation of the 16V71 Turbo. Diesel Pro offers both mechanical and electrical gauges as well as automatic switches.

• Temperature Switches – Triggered when coolant reaches a preset temperature, often used to activate alarms or shut down engines in case of overheating.

• Mechanical Gauges – Reliable, analog temperature readouts suitable for marine engine rooms and industrial sites.

• Electrical Gauges (12V & 24V) – Compatible with a variety of electrical systems, providing accurate real-time monitoring.

• Gauges with Alarm Systems – Offer both readout and audible/visual alerts for maximum protection.

Silicone Coolant Hoses for Detroit Diesel 16V71 Turbo

Silicone hoses provide superior durability compared to standard rubber hoses, resisting heat, pressure, and chemical degradation. Available in multiple diameters, these hoses connect the pump, radiator, oil cooler, and manifolds, ensuring seamless coolant flow throughout the engine.

Sizes range from under 1 inch to 4 inches in inside diameter, covering all coolant routing needs for the 16V71 Turbo. Each hose is cut to convenient lengths and designed for long service life, even in demanding marine environments where vibration and exposure to saltwater are constant concerns.

Hose Clamps for Cooling & Fuel Systems

To secure silicone hoses, heavy-duty clamps are required. Diesel Pro Power offers a full selection of clamps engineered to withstand vibration, pressure, and constant thermal cycling.

• Small Clamps – Designed for hoses under 1.5 inches.

• Medium Clamps – Covering the most common coolant hose sizes from 1.5 to 3 inches.

• Large Clamps – Built for oversized hoses up to 3.5 inches in diameter.

These clamps provide reliable, uniform pressure around the hose, preventing leaks and ensuring safe operation under high load.

Paint & Protective Finishes

The finishing touch to any Detroit Diesel engine rebuild is a protective coat of Detroit Diesel Green engine paint. This premium paint is not just cosmetic—it also resists corrosion, protects the engine block and pump housings, and restores the engine’s factory appearance. For marine operators especially, protective finishes are critical in extending engine life against the harsh effects of saltwater exposure.

Why the Cooling System Matters on the Detroit Diesel 16V71 Turbo

The 16V71 Turbo engine generates tremendous amounts of heat during operation, especially in turbocharged form. Without a properly maintained cooling system, operators face risks such as:

• Overheating – Leading to warped cylinder heads, cracked blocks, and failed gaskets.

• Reduced Efficiency – Engines running outside their designed temperature range consume more fuel and produce less power.

• Shortened Component Life – Bearings, seals, and other internal components wear faster when exposed to excessive heat.

Marine operators face additional challenges: high ambient temperatures, saltwater corrosion, and long continuous-duty cycles. Industrial operators, on the other hand, demand constant uptime in stationary applications such as generators and pumps. In both cases, the cooling system is the lifeline of the engine.

Why Buy Detroit Diesel 16V71 Turbo Cooling System Parts from Diesel Pro Power

Global Reputation – Diesel Pro Power has earned the trust of more than 40,000 satisfied customers across over 180 countries. From commercial shipping companies and offshore fleets to power generation facilities and heavy industry, operators worldwide rely on us to keep their Detroit Diesel 16V71 Turbo engines running at peak performance. Our reputation is built on reliability, consistency, and decades of specialized expertise.

Premium Aftermarket Quality – Every component we supply—whether it’s a water pump, thermostat, gasket, seal, or hose—is engineered to meet or exceed Detroit Diesel performance standards. Pumps are precision-machined for correct flow rates, seals are designed for long-lasting leak prevention, and thermostats are calibrated for accurate temperature control. Using premium aftermarket parts ensures the same dependability as OEM, often with enhanced durability and resistance to modern fuels and coolants.

Comprehensive Catalog – Our catalog is organized by engine model and system, making it simple to find the exact component you need for your Detroit Diesel 16V71 Turbo. From the smallest coolant hose clamp to a complete fresh water pump assembly, everything is laid out clearly and logically, reducing the risk of ordering the wrong part. This streamlined approach saves time and eliminates the guesswork that often comes with sourcing older engine parts.

Fast Worldwide Shipping – Downtime costs money, whether your 16V71 Turbo is powering a vessel, a generator, or a piece of industrial equipment. That’s why Diesel Pro Power prioritizes rapid order processing and reliable delivery. We ship daily to ports, marinas, industrial sites, and service facilities worldwide, ensuring that critical parts arrive when and where they’re needed most. Our global logistics network is designed to minimize downtime and keep operations running without interruption.

Expert Technical Support – Beyond simply supplying parts, Diesel Pro Power provides access to a team of specialists who understand the 16V71 Turbo engine inside and out. Our experts can guide you through selecting the correct pump rotation, matching the right repair kit to your engine configuration, choosing the proper thermostat for your operating environment, and troubleshooting complete cooling system issues. This personalized support helps operators avoid costly mistakes and ensures parts are installed and used correctly for maximum efficiency and longevity.