Detroit Diesel 12V71 Non-Turbo Marine Water Pump - Aftermarket

Detroit Diesel 12V71 Non-Turbo – Marine Water Pump Catalog

The Detroit Diesel 12V71 non-turbo engine relies on an efficient seawater cooling system, with the marine raw water pump at its core. Without proper circulation, the engine cannot regulate its temperature, making the water pump and its related components among the most important parts in long-term marine engine reliability. This catalog provides a complete breakdown of water pumps, repair kits, impellers, seals, gaskets, heat exchanger components, and accessories—all designed specifically for Detroit Diesel 71 and 92 Series marine applications, including the 12V71.

Complete Marine Water Pump Assemblies

Rebuilt Raw Water Pumps

• Designed for Detroit Diesel 71 and 92 Series engines.

• Bi-directional rotation – works in either right or left turning configurations.

• Features a 2” flange port type for easy marine plumbing connections.

• Comes with adapter and drive gear included for straightforward installation.

• 3 ½” impeller height with splined shaft for durability in saltwater operation.

• Offered as rebuilt units with a refundable core deposit.

Alternate Pump Assemblies

• Fully compatible with Detroit Diesel 12V71 applications.

• Same bidirectional design, 2” flange, and 3 ½” impeller height.

• Allows operators flexibility depending on preference for rebuilt or replacement units.

Pump Repair Kits

• Designed for 6-71, 8V71, 8V53, 12V71, 6V92, and 8V92 marine engines.

• Covers pumps with 3 ½” impellers and splined shafts.

• Includes seals, gaskets, bearings, and wear components needed to restore full function.

• Ideal for operators seeking to reduce costs and extend pump service life without replacing the entire pump.

Impellers for Marine Water Pumps

• 12-blade impeller with 12 spline drive.

• Diameter: 3 ¾” – Height: 3 ½”, engineered for the Detroit Diesel marine pump housing.

• Made from marine-grade rubber compounds designed to resist cracking and saltwater corrosion.

• Regular replacement prevents loss of water flow and engine overheating.

Gaskets & Seals Catalog

• Mounting gaskets – secure pump to engine surfaces.

• Inlet & outlet gaskets – each pump requires two for watertight flow.

• Flywheel housing gaskets – prevent leaks between housing and pump.

• Plate gaskets – maintain internal sealing and pressure retention.

• Mechanical seals – protect shaft entry points.

• Bearing oil seals – extend pump bearing service life.

Water Pump Internal Components

• Pump shafts – brass splined shafts for durability.

• Cams – engineered for precise function with 3 ½” impellers.

• Wear plates – protect housings and restore pump efficiency.

• Pump covers & cover screws – secure the impeller chamber and prevent leaks.

• Ball bearings – ensure smooth pump operation under constant load.

Heat Exchanger & Cooling System Accessories

• Heat exchanger tanks – available for 12V71, 16V71, 12V92, and 16V92 marine engines.

• Rebuilt heat exchanger cores – ensure restored cooling efficiency.

• Gasket kits for heat exchangers – complete sealing sets for marine cooling systems.

• Tank gaskets, glands, and seals – critical for maintaining watertight function.

• Outlet gaskets – for proper flow sealing.

Thermostats & Related Components

• 170° and 160° thermostats – available for 71 and 92 Series engines.

• Thermostat seals – prevent leaks around thermostat housings.

• Designed to maintain optimal Detroit Diesel marine operating temperature ranges.

Zinc Anodes for Corrosion Protection

• Multiple sizes available for water pumps, heat exchangers, fuel coolers, and oil coolers.

• NPT plug sizes: 3/4”, 1/2”, 3/8”, and 1/8”.

• Zinc lengths vary from 2” to 3 3/8”, providing long-lasting corrosion resistance.

• Essential sacrificial components that prevent saltwater damage to critical cooling parts.

Additional Cooling Accessories

• Radiator caps and necks – designed for Detroit Diesel pressure requirements.

• Marine intake strainers – 2 ½” pipe size strainers to protect pumps from debris.

• Silicone coolant hoses – marine-grade durability for flexible cooling line connections.

• Detroit Green engine paint – OEM-matched paint for finishing touch and protection.

Why Buy Detroit Diesel 12V71 Raw Water Pump Parts from Diesel Pro Power

Proven Global Reputation – With more than 40,000 satisfied customers across 180+ countries, Diesel Pro Power has become the trusted source for Detroit Diesel marine cooling components. Vessel operators around the world—from fishing fleets and cargo ships to offshore supply vessels—depend on our raw water pumps and replacement parts to keep their 12V71 engines operating at the correct temperature.

Premium Aftermarket Quality for Marine Applications – Every raw water pump, impeller, seal, gasket, and bearing is manufactured to meet or exceed Detroit Diesel engineering standards. These components are designed for continuous saltwater exposure and heavy-duty marine operation. By choosing Diesel Pro Power, you ensure your 12V71 non-turbo engine’s cooling system receives premium aftermarket quality parts that deliver long service life and dependable performance.

Comprehensive Catalog for the 12V71 Cooling System – Our catalog is carefully organized around the Detroit Diesel 71 Series, with a dedicated focus on the 12V71 non-turbo engine. From complete raw water pump assemblies to small components like wear plates, camshafts, impeller pullers, zincs, and thermostat seals, you’ll find everything needed to service and rebuild your pump in one place. This means less searching and faster repairs.

Fast Worldwide Shipping to Minimize Downtime – Marine operations cannot afford unnecessary delays. Whether you are docked in Miami, sailing the Caribbean, or operating on the other side of the world, Diesel Pro Power ensures quick and reliable delivery of 12V71 raw water pump parts. Downtime costs money, and our logistics system is designed to keep your vessel running with minimal interruption.

Expert Technical Support for Detroit Diesel 71 Series Engines – Identifying the correct pump or impeller for a 12V71 non-turbo engine can be challenging given the variations across years and vessel applications. Our experienced team understands the nuances of Detroit Diesel marine cooling systems and provides personalized support to ensure you receive the correct pump assembly, repair kit, or accessory the first time. This expert guidance saves time, reduces costly mistakes, and helps extend the life of your engine.