Parts for Detroit Diesel 12V71 Non-Turbo – Engine Overhaul Kit Catalog

The Detroit Diesel 12V71 Non-Turbo engine is part of the legendary Series 71 two-stroke family, known worldwide for its durability, high torque output, and ability to power a wide range of marine, industrial, and generator applications. An engine of this caliber requires the highest-quality parts when undergoing a rebuild or routine maintenance. At Diesel Pro Power, we provide a complete line of overhaul kits, gasket sets, seals, filters, and essential tools specifically designed for the 12V71 natural (non-turbocharged) engine.

With over 40,000 satisfied customers worldwide and global shipping to more than 180 countries, Diesel Pro Power has become the trusted source for Detroit Diesel parts. This catalog will walk you through every major component and supporting accessory available for the 12V71 non-turbo engine, ensuring your rebuild is complete, efficient, and backed by reliable parts.

Detroit Diesel 12V71 In-Frame Overhaul Kits

A complete engine overhaul kit is the foundation of any major rebuild. For the Detroit Diesel 12V71 natural engine, Diesel Pro offers both one-piece piston kits and two-piece crosshead piston kits.

12V71 One-Piece Piston Overhaul Kit

• Designed for natural aspiration (non-turbo) engines.

• Includes pistons, liners, rings, gaskets, bearings, and seals for a comprehensive rebuild.

• One-piece piston construction for engines built without articulated pistons.

• Ideal for fleets, marine vessels, and industrial equipment requiring straightforward piston installation.

12V71 Two-Piece Crosshead Piston Overhaul Kit

• Designed for operators who prefer a crosshead piston configuration.

• Provides improved heat resistance and longer piston life in heavy-duty continuous applications.

• Includes all essential overhaul components: pistons, liners, rings, bearings, and gaskets.

Both kits are engineered for durability and built to OEM specifications, ensuring reliable fitment and performance. Choosing between a one-piece or crosshead piston kit depends on the original engine configuration and operational demands.

Cylinder Liner Components & Tools for Series 71

Cylinder liners are central to Detroit Diesel engine rebuilds. Proper installation and fitment ensure compression integrity and optimal piston performance.

• Cylinder Liner Puller (Series 53, 71): A specialized tool to safely remove cylinder liners without damaging the engine block. An essential tool for mechanics performing in-frame overhauls.

• Standard Liner Insert (Series 71): Ensures correct fitment of liners to the block.

• Oversize Liner Insert (.010–.030): Used when blocks require machining or oversize liner installation.

• Liner Shim (.002): Provides fine adjustment to liner height, critical for maintaining compression and proper sealing under the cylinder head.

Engine Tune-Up Kits & Installation Tools

To complement a full rebuild, Diesel Pro Power offers tune-up kits and precision tools that simplify installation and ensure factory-level performance.

• Engine Tune-Up Kit (Series 53, 71, 92): Includes calibration tools, gauges, and adjustment fixtures for Detroit Diesel engines.

• Piston Ring Compressor (Series 71): Designed to compress piston rings for easy installation into liners. Works with 271 through 16V71 models.

• Piston Ring Assembly Tool: Ensures piston rings are safely and correctly installed without breakage.

These tools reduce downtime and minimize the risk of improper assembly during the rebuild process.

Gasket Kits for Detroit Diesel 12V71

A gasket failure can lead to severe oil, coolant, or compression leaks. Diesel Pro supplies complete gasket kits to cover every sealing surface.

• Overhaul Gasket Kit (12V71): Includes head gaskets, intake, exhaust, and oil sealing gaskets needed for a full engine rebuild.

• Inspection Block Cover Gaskets (V71, V92): Specifically designed for inspection panels on Detroit Diesel engines.

• Inspection Cover Gasket (V71, V92, 6V53, 8V53): Covers block access points on newer-style engines.

Crankshaft Seals & Sleeves

Maintaining crankshaft seal integrity is crucial for preventing oil leaks and ensuring engine efficiency.

• Front Crankshaft Seal (Standard, Universal Rotation): Fits 8V53, 3-71, 4-71, 6-71, 6V71, 8V71, 12V71 engines.

• Rear Crankshaft Seal (Single Lip, Standard & Oversize): Designed for V71 and 53 series engines.

• Rear Double Lip Seal (Standard & Oversize): Provides enhanced sealing for engines under higher operating pressures.

• Oversize Sleeve Seal: Ensures secure seating of crankshaft seals in over-machined housings.

Filters for 12V71 Engines

Filtration is vital to extending the life of any Detroit Diesel. Diesel Pro offers premium oil filters for both spin-on and cartridge-style applications.

• Spin-On Oil Filter (PF911): Modern convenience for faster filter changes.

• Cartridge Oil Filter (PF132): OEM-style cartridge for traditional filter housings.

• Oil Filter Removal Wrench (4-21/32" to 5-5/32”): Tool for removing tight or stuck oil filters.

Cooling & Temperature Regulation Components

A reliable cooling system ensures that the Detroit Diesel 12V71 operates at safe temperatures.

• Thermostats (160, 170, 180 Degrees): Available in multiple temperature ranges depending on engine duty cycle and application.

• Thermostat Seal: Maintains leak-free installation.

• Block Heater (V71, V92 Engines): 120-volt, 1500-watt heater to keep engines ready for cold-weather operation.

• Radiator Cleaner: Maintains cooling system efficiency and prevents scale buildup.

• Temperature Switch: Closes at 205°F to protect against overheating.

Paints, Primers, and Finishing Accessories

Restoring a Detroit Diesel engine is not complete without proper finishing. Diesel Pro offers OEM Detroit Diesel green paint and primers to protect your engine block and components.

• Paint Primer: Specially formulated for diesel engine surfaces.

• Detroit Green Paint: Matches original Detroit Diesel color for professional engine appearance.

Gauges & Monitoring Systems

Accurate engine monitoring ensures optimal performance after a rebuild. Diesel Pro supplies mechanical and electrical gauges suitable for Series 71 engines.

• Mechanical Gauges (Standard & With Alarm): Durable and reliable.

• Electrical Gauges (12V & 24V): Designed for marine and industrial applications requiring electrical monitoring systems.

Why Choose Diesel Pro Power for Detroit Diesel 12V71 Rebuild Kits?

• Proven Customer Base: Over 40,000 satisfied customers worldwide.

• Global Shipping: Orders ship within 24 hours to more than 180 countries.

• Expert Support: Our technical team helps identify the correct kit and accessories for your engine configuration.

• Complete Catalog: Every component required for a full overhaul is available in one place.

• Marine & Industrial Focus: Unlike general suppliers, Diesel Pro specializes in continuous-duty applications.