Detroit Diesel 6V71 Turbo Marine Water Pump - Aftermarket

Detroit Diesel 6V71 Turbo Marine Water Pump and Cooling System Parts Catalog

Overview of the Detroit Diesel 6V71 Turbo Marine Engine Cooling System

The Detroit Diesel 6V71 Turbo engine, part of the legendary Series 71 family, is renowned for its durability and performance in demanding marine environments. Used extensively in commercial vessels, fishing boats, workboats, and military craft, this two-stroke V6 turbocharged engine requires a robust and efficient cooling system to maintain peak operation.

Marine engines face continuous exposure to saltwater, high ambient temperatures, and long operating hours, making the raw water pump and associated cooling components vital for reliability. The marine water pump in the 6V71 Turbo engine draws seawater into the cooling circuit, regulating engine temperature and preventing overheating.

At Diesel Pro Power, we provide a complete catalog of marine water pump components, rebuild kits, impellers, gaskets, thermostats, seals, hoses, and zincs—all designed to meet or exceed OEM standards for Detroit Diesel 6V71 Turbo engines. With over 40,000 satisfied customers worldwide, Diesel Pro Power is the trusted global source for marine parts shipped fast and backed by expert support.

Marine Water Pumps for Detroit Diesel 6V71 Turbo Engines

New Marine Water Pump for Detroit Diesel 53 & 71 Series Marine Engines

Our new marine water pump is designed to deliver maximum flow and long service life. The bidirectional design allows rotation in either direction, making installation versatile for various engine configurations.

• Port Type: 1” flange

• Includes: Drive gear and mounting adapter

• Applications: Detroit Diesel 6V71 Turbo, 6-71, and related Series 53 models

• Performance: Ensures optimal seawater circulation for cooling under heavy marine loads

This pump is precision-engineered for consistent performance and corrosion resistance in marine environments. It’s a popular choice for boat owners seeking an all-new replacement solution rather than a rebuilt alternative.

Rebuilt Marine Water Pump for Detroit Diesel 53, 71, and 92 Series Marine Engines

Our rebuilt raw water pump offers OEM-level quality and savings, rebuilt to strict standards by Detroit Diesel specialists. Each pump undergoes full disassembly, inspection, cleaning, and component replacement to restore like-new functionality.

• Bidirectional rotation—works for left- or right-hand engine applications

• Port Type: 1½” flange

• Includes: Adapter and drive gear

• Impeller Height: 2½”

Each rebuilt unit includes a refundable core deposit, ensuring proper recycling and sustainability. This model is ideal for Detroit Diesel 6V71 Turbo engines used in both twin-screw and single-engine configurations.

New Marine Water Pump for Detroit Diesel 71 and 92 Series Engines

A factory-new option offering OEM-grade performance for high-demand commercial vessels. The 2” flange port and 3½” impeller height provide superior water volume delivery for turbocharged setups.

• Bidirectional Pump Design

• Splined Shaft for Heavy-Duty Drive Engagement

• Includes Adapter and Drive Gear

This pump is precision-cast and assembled for durability in continuous-duty marine applications, ensuring dependable cooling in turbocharged Detroit Diesel 6V71 engines operating at high load.

Marine Water Pump Components & Rebuild Kits

Marine Water Pump Repair Kit – For 6V53, 6V71, 6-71, 6V92

This comprehensive Detroit Diesel marine water pump repair kit includes all seals, bearings, and internal components required to rebuild a 2½” impeller-height pump.

• Compatible With: 6V71 Turbo and naturally aspirated engines

• Contents Include: Bearings, seals, wear plates, and gaskets

• Material: Corrosion-resistant marine-grade components

Perfect for maintenance facilities or vessel owners rebuilding pumps on-site.

Marine Water Pump Repair Kit – For 6V71, 8V71, 8V53, 12V71, 6V92, 8V92

Designed for larger displacement or turbocharged Detroit Diesel engines using the 3½” impeller spline-shaft design, this rebuild kit ensures your pump maintains OEM flow rates and sealing performance.

• For 3½” Impeller Height Pumps

• High-Temperature Seals and Bearings

• Long-Lasting Marine Bronze Components

These rebuild kits provide full value restoration, reducing the cost of replacement while maintaining top-tier cooling efficiency.

Impellers for Detroit Diesel Marine Water Pumps

2½” Impeller

• 12 Blade / 12 Spline Design

• Diameter: 3¾”

• Height: 2½”

• Fits: Detroit Diesel 6V71 Turbo, Volvo Penta, and Caterpillar applications

Engineered for smooth rotation and optimized water flow, this impeller ensures even cooling across cylinders under high load or prolonged idling.

3½” Impeller

• 12 Blades / 12 Spline Drive

• Diameter: 3¾”

• Height: 3½”

• Applications: Detroit Diesel 6V71 Turbo and 8V71 Turbo Engines

Manufactured from marine-grade rubber compound designed for saltwater resistance and long life.

2” Impeller

• 10 Blades / 12 Spline Drive

• Diameter: 2½”

• Height: 2”

This smaller impeller is used in specific auxiliary cooling systems and earlier model 53/71 Series engines, maintaining consistent flow in compact installations.

Gaskets, Seals, and Mounting Components

The 6V71 Turbo marine cooling system depends on a series of gaskets, seals, and O-rings to maintain watertight integrity under pressure. Diesel Pro Power offers OEM-quality replacements for every component.

Gaskets and Plates

• Marine Water Pump Gasket Sets (5115395, 5134679, 5112143, etc.) – used for inlet/outlet connections, pump covers, and adapter plates.

• Mounting Gaskets (5194567) – provide leak-proof joints between pump housing and mounting flange.

• Flywheel to Salt Water Pump Gaskets (5104506) – prevent fluid seepage at critical junctions.

• Plate Gaskets (5193562) – ensure secure sealing of the front pump plate.

Seals and Bearings

• Marine Pump Mechanical Seals (5198419) – prevent saltwater intrusion into bearings.

• Bearing Oil Seals (5195101) – retain lubrication, extending pump life.

• Ball Bearings (23505479) – heavy-duty load-rated bearings designed for continuous marine use.

Couplings & Shafts

• Accessory Drive Coupling (5143616) – 21-tooth drive coupling engineered for precise torque transmission.

• Shafts and Cams (5196167, 8927573) – built for spline-shaft or keyed-shaft configurations to match OEM rotation and balance.

Thermostats & Cooling Regulation Components

The Detroit Diesel 6V71 Turbo engine uses thermostats to maintain ideal operating temperatures under changing marine conditions.

• 160°F and 170°F Thermostats (5102112, 23503826) – available for Series 71 and 92 engines

• Thermostat Seals (5132155) – ensure leak-free installation

• Mounting Gaskets and Bolts – available for easy servicing

Maintaining proper thermostat function prevents thermal shock, improves fuel economy, and ensures consistent engine lubrication.

Heat Exchanger Components

Marine engines use heat exchangers to cool fresh water (glycol) using raw seawater. Diesel Pro Power supplies all key components for 6V71 Turbo heat exchanger systems.

• Heat Exchanger Core (8509553) – constructed from marine-grade copper-nickel alloy for maximum heat transfer

• Heat Exchanger Gasket Kits (5192637) – complete sealing solution for tank and tube bundle assemblies

• Glands and Seals (5167745, 5167746) – maintain water-tight integrity

• Radiator Gaskets (5167764, 5158747) – provide reliable joints under pressure

Each component is precision-fit for Detroit Diesel 6V71 Turbo marine systems and compatible with 8V71, 12V71, and 92 Series models.

Zinc Anodes: Corrosion Protection

Zinc anodes are critical to preventing galvanic corrosion in seawater-exposed metal parts. Diesel Pro offers a complete range of zincs for heat exchangers, fuel coolers, oil coolers, and water pumps.

• Zinc for Marine Water Pumps (E3C) – Brass plug NPT ¾”, zinc length 2”

• Zinc for Heat Exchangers (E4C) – NPT ¾”, zinc length 3⅜”

• Zinc for Fuel & Oil Coolers (E1C, E00) – NPT ⅛–⅜”, available in multiple sizes

• Zinc for Cummins and Detroit Diesel Interchange (E2C) – versatile fit for shared applications

Routine zinc replacement prevents costly corrosion damage to cooling system components and extends pump lifespan.

Hoses, Clamps & Coolant Accessories

Diesel Pro Power offers premium silicone coolant hoses engineered for marine use—resistant to saltwater, oil, and high temperatures.

• Sizes range from 1” to 4” inside diameter, each sold in 1-foot lengths

• Reinforced construction prevents collapse under suction

• Ideal for seawater intake, discharge, or coolant circulation lines

Accompanying stainless-steel hose clamps (sizes 10H to 3922847) ensure secure, corrosion-resistant fastening for all marine coolant connections.

Why Choose Diesel Pro Power for Detroit Diesel 6V71 Turbo Cooling Parts

• Everything in one place: Complete marine cooling solutions, from impellers to full pump assemblies.

• Worldwide shipping: Fast processing with real-time tracking.

• Detroit Diesel-trained experts: Our team provides precise fitment guidance for your CPL and configuration.

• Trusted by 40,000+ customers: Serving fleets, captains, and shipyards around the world.

• Quality assurance: All components meet or exceed OEM marine-grade standards.

Diesel Pro Power isn’t just a parts supplier—it’s your partner in maintaining the performance, reliability, and longevity of your Detroit Diesel 6V71 Turbo marine engine.