Parts For Detroit Diesel 12V92 Non-Turbo

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Engine Specifications & Applications of the Detroit Diesel 12V92 Naturally Aspirated Engine

Overview: Detroit Diesel 12V92 Non-Turbo

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.

Technical Specifications: Detroit 12V92 Naturally Aspirated Engine

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.

Key Benefits of the 12V92 Naturally Aspirated Engine

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