The Detroit Diesel 12V92 Naturally Aspirated (NA) engine is a powerful V12, two-stroke diesel from the iconic 92 Series. Known for its mechanical simplicity and high torque output, the 12V92 NA relies on a Roots-style blower for scavenging air but does not include a turbocharger. This configuration is engineered for long service life in continuous-duty environments such as marine systems, generator sets, oilfield equipment, and heavy machinery. With a total displacement of 1,104 cubic inches (18.1 liters), the 12V92 NA delivers dependable performance without the added complexity of forced induction. Diesel Pro Power offers a complete catalog of aftermarket replacement parts—including blowers, cylinder heads, injectors, gasket sets, cooling components, and overhaul kits—for easy maintenance and reliable uptime. Specification Value Engine Configuration V12, two-stroke diesel Displacement 1,104 cu in (18.1 liters) Bore x Stroke 4.84 in x 5.00 in Aspiration Naturally Aspirated (blower only) Horsepower Output 625–725 HP @ 2,100 RPM Torque Output ~1,500–1,650 lb-ft Cooling System Water-cooled Oil Capacity ~45–50 quarts Dry Weight ~3,800–4,000 lbs Fuel System Mechanical unit injectors Valves per Cylinder 4 exhaust valves (no intake valves) Intake Method Ports in cylinder liner, pressurized by blower Note: All Detroit Diesel 2-stroke engines—including the 12V92 NA—use only exhaust valves, with 4 per cylinder by default unless specifically configured as a 2-valve head. Intake air is forced into the cylinder through liner ports by a blower, ensuring efficient uniflow scavenging. Mechanically Simple: No turbo, no sensors, no electronic controls Lower Maintenance Costs: Fewer components means easier service Field-Proven Durability: Trusted across military, marine, and industrial platforms Torque-Rich Performance: Delivers consistent pulling power under steady loads Excellent for Remote Environments: Fully mechanical and highly serviceable This configuration is ideal for operators who value long-term reliability and ease of in-field maintenance over peak horsepower. Bilge and Fire Pump Engines Deck Machinery Power Units Marine Gensets (Auxiliary Power) Support Trawlers and Workboats Hydraulic Winches and Gear Drives The 12V92 NA thrives in utility and auxiliary roles where steady power and mechanical simplicity are essential. Water Pumping Stations Skid-Mounted Compressor Drives Portable Generator Trailers Construction Support Equipment Mining Haul and Support Systems Its robust output and all-mechanical setup make it ideal for high-vibration and off-grid use cases. Mobile Generator Systems Tracked and Amphibious Utility Vehicles Fuel and De-Watering Units Heavy Engineering Support Vehicles Used for decades in military platforms, the 12V92 NA offers high torque and battlefield-proven reliability. Marine Detroit Diesel 12V92 Component Maintenance Life The Legacy of the Detroit Diesel Marine 12V92 Engine & Its Use Today Detroit Diesel 12V92 Marine Engine Specifications (Turbo & Non-Turbo) Introduction to the Detroit Diesel Series 92 Engines (6V92, 8V92, 12V92, 16V92) Weekly Maintenance for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Monthly Maintenance for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Quarterly Maintenance for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Annual Maintenance for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Safety and Maintenance Guidelines For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Cylinder Block and Components For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Fuel System For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Lubrication System For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Cooling System For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Electrical Equipment For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Operation and Troubleshooting For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Preventive Maintenance for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Tune-Up and Adjustments for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Common Repairs and Overhauls for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Technical Data and Specifications for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Appendices and Additional Resources For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Air Intake and Exhaust Systems For Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Storage and Preservation for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Advanced Governor Systems for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Hydraulic Systems for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Introduction To Part 2 Of Servicing Your Detroit Diesel 92 Series Engine (6V92, 8V92, 12V92, 16V92) Air and Exhaust Systems for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Fuel Systems for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Cooling Systems for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Electrical Systems for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Overhaul and Component Rebuild for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Advanced Diagnostics for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Engine Tuning and Calibration for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Reference Data and Charts for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Starting Procedures for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Operating Conditions for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Performance Optimization for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Index for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Stopping Procedures for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Engine Run-In Procedures for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Appendices for Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92) Detroit Diesel 6V92, 8V92, 12V92, 16V92 Engine Tune Up Comprehensive Guide For Camshafts In Detroit Diesel 92 Series Engines (6V92, 8V92, 12V92, 16V92)
Parts For Detroit Diesel 12V92 Non-Turbo
-
Select Parts Category
Loading...
Engine Specifications & Applications of the Detroit Diesel 12V92 Naturally Aspirated Engine
Overview: Detroit Diesel 12V92 Non-Turbo
Technical Specifications: Detroit 12V92 Naturally Aspirated Engine
Key Benefits of the 12V92 Naturally Aspirated Engine
Common Applications of the Detroit 12V92 NA Engine
Marine Use
Industrial Applications
Military and Government Equipment
Additional Resources
Practical Guide To Servicing Your Detroit Diesel Series 92 Engine (6V92, 8V92, 12V92, 16V92)