Parts For Detroit Diesel 8V92 Non-Turbo - Exhaust Section

Parts for Detroit Diesel 8V92 Non-Turbo – Exhaust Section

The Detroit Diesel 8V92 non-turbo engine is one of the most durable and widely recognized powerplants in the Detroit Diesel Series 92 family. Built for both marine and industrial service, it’s a two-stroke, V-8 engine known for its strong torque, straightforward maintenance, and signature Detroit reliability. Proper maintenance of its exhaust system is crucial for sustaining performance, ensuring clean combustion, and extending the life of the engine.

This catalog provides a comprehensive selection of Detroit Diesel 8V92 exhaust system parts, including marine manifolds, flanges, elbows, gaskets, insulation components, and more — all available from Diesel Pro Power, the leading online source for Detroit Diesel parts worldwide.

Detroit Diesel Marine Manifold for 8V92 Non-Turbo

The Detroit Diesel Marine Manifold is engineered to handle the intense heat and pressure of marine exhaust gases. This manifold is designed for compatibility with 4-71, 8V71, 16V71, 8V92, and 16V92 engines, but this catalog focuses on its use with the 8V92 non-turbo configuration.

Crafted from high-grade cast iron, this manifold efficiently channels exhaust gases from each cylinder to the outlet, preventing heat damage and maintaining even backpressure across the cylinders. The water-jacketed design ensures cooling efficiency — a vital feature in marine applications where space constraints and thermal control are critical.

Each manifold sold by Diesel Pro Power is either new or expertly remanufactured to exceed OEM specifications, pressure-tested for leaks, and precisely machined for an exact fit.

Detroit Diesel Head to Manifold Gasket

The Head to Manifold Gasket is a small yet critical part of the 8V92 exhaust system. It provides a secure seal between the cylinder head and the exhaust manifold, preventing exhaust leaks and maintaining consistent engine backpressure.

For the 8V92 engine, each bank of cylinders requires a set of these gaskets. They are produced using heat-resistant materials designed to withstand the extreme temperatures generated by the Detroit two-stroke combustion process.

These gaskets are compatible across Series 71 and Series 92 engines, making them ideal replacements for multi-engine fleets. Diesel Pro Power’s gaskets are stocked for immediate delivery and meet strict OEM-grade tolerances to ensure proper sealing and longevity.

Detroit Diesel Gasket for Marine Manifold Flange

The Marine Manifold Flange Gasket acts as a protective barrier between the exhaust manifold and the flange connection. It prevents exhaust gas escape and guards against corrosive seawater intrusion.

This gasket measures 6.25 inches outer diameter and 4.25 inches inner diameter, ensuring a precise fit on Detroit Diesel 8V92 marine setups. Built from multi-layer composite materials, it withstands both heat cycling and vibration common in marine installations.

Detroit Diesel Marine Exhaust Manifold Flange

The Detroit Diesel Marine Exhaust Manifold Flange is a durable connection component with a 4-inch NPT thread size, engineered for secure attachment between the exhaust manifold and downstream exhaust piping.

Precision-machined and corrosion-resistant, this flange supports both non-turbo and turbocharged 92-series marine configurations. Its robust design helps minimize exhaust leaks and maintain structural integrity under vibration and backpressure.

Manifold Insulation Tape – 3” and 4” Widths

Exhaust insulation is vital to maintaining safe engine room temperatures. Diesel Pro Power supplies high-temperature manifold insulation tape in both 3-inch (TAPE3) and 4-inch (TAPE4) widths.

Each roll measures 100 feet in length and 1/8 inch thick, capable of handling continuous exposure to heat and preventing burns, condensation, or nearby component damage. Wrapping the manifold and exhaust pipes with this tape helps reduce radiant heat loss and improves overall system efficiency.

Detroit Diesel Manifold Studs, Crabs, Washers, and Nuts

Manifold Stud 

The manifold stud secures the exhaust manifold to the cylinder head. For the 8V92, the proper stud specification is 7/16"-14/20 x 2.10". Made from hardened alloy steel, each stud is designed to resist stretching and corrosion from heat cycles.

Manifold Crab 

The manifold crab, sometimes referred to as a clamp or retainer, is used to hold the manifold sections securely. Its design distributes clamping force evenly, preventing exhaust leaks and manifold warping.

Manifold Washer and Nut

Each washer and nut combination ensures even torque distribution across the mounting hardware, contributing to leak-free performance. All hardware components from Diesel Pro Power are zinc-coated for corrosion resistance and meet OEM standards for strength.

Detroit Diesel Marine Manifold Water Outlet Components

Marine Manifold Water Outlet Plate 

This water outlet plate directs coolant flow through the water-jacketed manifold to regulate exhaust temperature. It is an essential part of the closed-loop cooling system used on marine engines.

Gasket for Series 71 & 92 Water Outlet 

Paired with the outlet plate, this gasket ensures a watertight seal to prevent coolant leaks into the exhaust path. It is compatible with both Series 71 and Series 92 engines.

Threaded Plate for Marine Manifold 

The threaded plate, featuring a 3/4-inch NPT thread, allows secure attachment of fittings or elbows to the manifold. It requires two bolts, 5/16"-18 x 1 1/8", to ensure proper installation.

Detroit Diesel Marine Manifold Elbows

Marine exhaust elbows connect the manifold to the discharge line, providing smooth directional flow while preventing backflow of seawater. Diesel Pro Power offers several variations:

• 90-Degree Elbow, 1" Thread– Designed for standard marine applications where a tight 90° bend is required.

• 90-Degree Elbow, 3/4" Thread– Commonly used on smaller exhaust sections or auxiliary outlets.

• 45-Degree Elbow, 3/4" Thread  – Provides an angled outlet for installations with limited space or offset alignment.

All elbows are built from marine-grade bronze or coated cast iron, ensuring long-term resistance to corrosion and saltwater exposure.

Marine Manifold Flange Spacer Gasket

The Flange Spacer Gasket features an outer diameter of 6.25" and inner diameter of 3.50", providing a thermal and vibration buffer between adjoining exhaust components. It is essential when reassembling the manifold and exhaust flange to prevent misalignment or leakage.

Muffler Caps for Detroit Diesel 8V92 Exhaust

Detroit Diesel muffler caps prevent water ingress and debris accumulation when the engine is off. They are available in several sizes to fit different exhaust outlet diameters:

• 3-inch Cap – Ideal for smaller generator or auxiliary engines.

• 3.5-inch Cap – Commonly used for standard industrial configurations.

• 4.5-inch Cap – Designed for mid-size exhaust systems.

• 5-inch Cap – Perfect for full-size 8V92 non-turbo marine and stationary engines.

Each cap is made from durable stainless or galvanized steel, ensuring smooth operation, corrosion resistance, and long service life in harsh marine environments.

Flexible Metal Exhaust Hoses

Vibration, movement, and high heat make flexible exhaust hoses essential in marine engine rooms. Diesel Pro Power supplies reinforced metal exhaust hoses in multiple diameters and lengths for 8V92 applications:

• 4-inch x 18-inch Hose – Compact and ideal for smaller installations.

• 6-inch x 18-inch Hose – Provides flexibility for medium exhaust systems.

• 8-inch x 18-inch Hose – Handles high-volume exhaust flow with minimal restriction.

Each hose features corrugated stainless-steel construction with threaded ends for a secure, leak-resistant connection. These hoses absorb vibration, prevent misalignment stress, and extend the lifespan of manifolds and flanges.

Temperature Switch for 8V92 Exhaust System

The temperature switch is a universal safety component compatible with Detroit Diesel, Cummins, and Caterpillar engines. It activates automatically at approximately 205°F, featuring a ½-inch NPT thread that allows it to be installed on the exhaust manifold or water outlet housing.

This switch acts as an early warning device, triggering alarms or shutdown systems if exhaust or coolant temperatures exceed safe operating levels—protecting your 8V92 engine from heat-related damage or cooling system failure.

Detroit Diesel Green Engine Paint

To maintain the authentic appearance of your Detroit Diesel engine, Diesel Pro Power offers Detroit Green high-temperature engine paint. This paint is formulated for maximum adhesion and durability under high heat, ideal for exhaust manifolds, elbows, and surrounding components once cleaned and prepped.

It provides corrosion resistance while restoring the classic factory finish. Available for ground shipping within the USA and Canada, this paint perfectly matches the original Detroit Diesel color used in OEM production.

Mechanical and Electrical Gauges

Monitoring exhaust and engine performance is essential to protecting the Detroit Diesel 8V92. Diesel Pro Power offers a complete range of mechanical and electrical gauges to track vital parameters such as exhaust temperature, coolant pressure, and oil levels.

• Mechanical Gauges: Available in standard or alarm-equipped versions for direct engine monitoring.

• Electrical Gauges: Offered in both 12-volt and 24-volt options for marine and industrial systems.

Each gauge is precision-calibrated and built to withstand vibration, heat, and humidity—ensuring reliable readings even in demanding marine environments.

Why Buy Detroit Diesel 8V92 Non-Turbo Exhaust Parts from Diesel Pro Power

Global Leader in Detroit Diesel Replacement Parts

Diesel Pro Power has supplied over 40,000 satisfied customers worldwide, earning its reputation as the most trusted online source for Detroit Diesel parts. From marine vessels to industrial generators, operators rely on Diesel Pro’s consistent quality and unmatched customer support.

OEM Quality and Rigorous Testing

Every exhaust component, from manifold gaskets to flexible hoses, is tested to meet or exceed OEM specifications. Rebuilt manifolds and hardware undergo pressure testing and dimensional verification to ensure reliability and performance.

Fast Global Shipping and Tracking

Diesel Pro Power ships globally with real-time tracking and rapid order fulfillment. Whether your 8V92 powers a tugboat in the Gulf Coast or a powerplant in South America, parts arrive quickly and safely.

Expert Technical Support

The Diesel Pro Power team includes Detroit Diesel specialists who provide installation guidance, torque specifications, and compatibility assistance for all exhaust components.

Comprehensive Inventory and One-Stop Shopping

Beyond exhaust components, Diesel Pro Power stocks complete systems for Series 92 engines — including fuel, cooling, electrical, and overhaul kits. Customers can find everything required to maintain or restore a Detroit Diesel 8V92 in one location.

Trusted by Marine, Industrial, and Fleet Operators Worldwide

For over three decades, Diesel Pro Power has supported shipyards, fleet managers, and individual owners seeking dependable parts and service for legacy Detroit Diesel engines.