Gasket for Canada - Exhaust Section

Parts for Detroit Diesel 12V92 Non-Turbo – Exhaust Section

The Detroit Diesel 12V92 Non-Turbo engine remains one of the most respected and long-lasting powerplants in the Series 92 family. Known for its two-stroke reliability, compact design, and adaptability to marine and industrial applications, the 12V92 delivers consistent torque and smooth exhaust flow when properly maintained. The exhaust system on a 12V92 Non-Turbo plays a key role in maintaining efficient operation, controlling backpressure, and protecting critical components from heat damage. Below is a detailed catalog of exhaust-related parts designed specifically for the Detroit Diesel 12V92 Non-Turbo, all available through Diesel Pro Power, the leading global source for Detroit Diesel replacement parts.

Detroit Diesel Marine Manifold

The Detroit Diesel Marine Manifold for the 12V92 engine is a precision-machined, high-temperature cast component designed to collect exhaust gases evenly from each cylinder and direct them toward the outlet system. Built from marine-grade materials, this manifold withstands the punishing heat and corrosive marine environment common to offshore and heavy-duty applications.

Each manifold comes new—not remanufactured—ensuring a perfect fit and full lifespan. The marine manifold also features improved wall thickness for superior heat retention and reduced risk of cracking under prolonged use. Proper sealing ensures no gas leakage between cylinder heads, helping maintain smooth idle and optimized exhaust flow. Diesel Pro Power inspects every manifold to exceed OEM standards, giving operators peace of mind that their 12V92 will perform dependably under continuous load conditions.

Head-to-Manifold Gasket

The Head-to-Manifold Gasket provides the essential seal between the cylinder head and exhaust manifold. Even the smallest leak in this joint can lead to heat loss, backpressure variations, or localized burn damage on the head surface.

Diesel Pro’s gasket is manufactured using multi-layer composite materials engineered for both durability and thermal flexibility. Designed to perform under extreme heat cycles, this gasket ensures long-term reliability and maintains a consistent seal even during thermal expansion and contraction. For the 12V92 engine, proper gasket installation is critical to sustaining exhaust system integrity and maintaining optimal fuel efficiency.

Marine Exhaust Manifold Flange Gasket

A properly fitted Marine Exhaust Manifold Flange Gasket prevents exhaust leaks at the critical junction where the manifold connects to the flange. The gasket’s high-temperature fiber material resists warping and compression loss, while maintaining resilience under vibration and pressure pulses.

With an outer diameter of 6.25 inches and an inner diameter of 4.25 inches, this gasket ensures precise fitment for marine configurations. Diesel Pro Power tests each gasket for dimensional accuracy and sealing strength, ensuring the 12V92 exhaust remains leak-free for long-term marine service.

Marine Exhaust Manifold Flange

The Marine Exhaust Manifold Flange is a rugged connector piece that links the manifold outlet to the exhaust piping system. Featuring a 4-inch NPT threaded size, it allows for secure attachment and alignment of exhaust elbows or hose sections.

Built from corrosion-resistant steel, this flange resists rust and pitting in saltwater conditions. The component also undergoes heat treatment to maintain structural integrity under continuous exhaust exposure. Proper flange alignment ensures reduced vibration and prevents exhaust stress fractures—vital for extending manifold and piping life in marine and stationary generator setups.

Manifold Insulation Tape

Exhaust insulation is critical for maintaining safe engine room temperatures and preventing heat soak into nearby components. Diesel Pro Power’s Manifold Insulation Tape is available in both 3-inch and 4-inch widths, each 100 feet long and 1/8 inch thick.

This fiberglass-based wrap withstands temperatures exceeding 1000°F and is ideal for wrapping around manifolds, elbows, or downpipes. By reducing radiant heat loss, insulation tape improves engine efficiency and protects sensitive wiring and hoses nearby. It also aids in maintaining uniform exhaust gas temperature, which can help prevent turbo lag or imbalance in engines with twin-bank exhaust configurations.

Manifold Studs, Crabs, Washers, and Nuts

A reliable exhaust assembly depends on the correct fastening hardware. Diesel Pro Power provides OEM-spec Manifold Studs—7/16"-14/20 x 2.10"—engineered from high-grade alloy steel for superior tensile strength. These studs resist stretching and seizing under thermal cycling.

Manifold Crabs, or clamps, ensure even pressure distribution across the manifold-to-head joint, reducing the likelihood of exhaust leaks. The Manifold Washers and Nuts are equally essential, as they secure each joint and prevent loosening from vibration. All fasteners are zinc-plated or stainless-coated for corrosion resistance and are manufactured to OEM tolerances, ensuring perfect fit and long-term reliability in the 12V92 Non-Turbo system.

Marine Manifold Water Outlet Plate and Gasket

The Marine Manifold Water Outlet Plate seals the coolant passages integrated into marine manifolds. In marine engines like the 12V92, exhaust manifolds are often water-cooled to reduce surface temperature and enhance overall cooling system efficiency.

Diesel Pro Power’s Outlet Plate and Gasket set ensure complete sealing between the manifold and water outlet ports, preventing coolant leaks and cross-contamination between the exhaust and cooling systems. The gasket is constructed from a durable composite material designed to resist both heat and antifreeze chemical exposure, guaranteeing dependable operation over extended service intervals.

Threaded Plate for Marine Manifold

The Threaded Plate with a ¾-inch thread is a small yet vital component in the marine exhaust manifold assembly. This plate is typically installed on the manifold’s side ports to accommodate coolant fittings, temperature senders, or threaded plugs.

Diesel Pro’s plate features precise threading for tight engagement and comes with bolt hole provisions (5/16"-18 x 1 1/8") for secure attachment. The plate is machined from corrosion-resistant steel, making it suitable for the harsh saltwater environment faced by marine power units.

90- and 45-Degree Marine Exhaust Elbows

Exhaust elbows allow for directional flow control as gases exit the manifold. Diesel Pro Power offers 90-degree and 45-degree Marine Exhaust Elbows in both ¾-inch and 1-inch thread sizes.

Each elbow is made from marine-grade bronze or heavy-duty stainless steel, preventing rusting and prolonging lifespan in wet bilge environments. The smooth internal bend minimizes turbulence and backpressure, ensuring optimal exhaust velocity for the 12V92 Non-Turbo. Whether used for compact engine rooms or custom exhaust routing, these elbows help maintain efficient gas evacuation while reducing engine room heat and soot accumulation.

Marine Manifold Flange Spacer Gasket

The Marine Manifold Flange Spacer Gasket is engineered to maintain a precise seal where the flange spacer joins the exhaust system. With an outer diameter of 6.25 inches and an inner diameter of 3.50 inches, it fits snugly into the 12V92’s exhaust setup.

Manufactured from heat-resistant graphite composite, this gasket tolerates extreme vibration and high-pressure exhaust pulses. It also helps compensate for slight surface irregularities, ensuring a gas-tight joint across the system.

Muffler Caps for Industrial Applications

Detroit Diesel engines used in industrial applications often require durable Muffler Caps to protect exhaust outlets from foreign objects, rain, or debris when the engine is not in use. Diesel Pro Power offers a full range of cap sizes—4.5-inch, 5-inch, and 6-inch outer diameters—to fit varying exhaust pipe dimensions.

Each cap is precision-formed for a snug fit and built from corrosion-resistant materials capable of withstanding constant outdoor exposure. By sealing the muffler opening, these caps help extend exhaust component lifespan and prevent moisture-related corrosion inside the muffler body.

Flexible Metal Exhaust Hoses

For installations requiring vibration isolation or flexible exhaust routing, Diesel Pro Power provides Flexible Metal Exhaust Hoses in 6-inch x 18-inch and 8-inch x 18-inch configurations.

Constructed from interlocked stainless steel, these hoses are both durable and flexible enough to absorb engine movement without cracking or leaking. Their use is essential in marine engine rooms where alignment shifts and vibration can stress rigid exhaust lines. These flexible connectors reduce mechanical strain on manifolds and flanges, ensuring long-term reliability and quieter operation.

Temperature Switch

The Temperature Switch offered by Diesel Pro Power is compatible with Detroit Diesel, Cummins, and Caterpillar engines, including the 12V92 Non-Turbo. Designed to close at 205°F, this switch provides an early warning of overheating by triggering alarms or gauges.

Its ½-inch NPT thread size allows easy integration into the cooling or exhaust monitoring system. Reliable temperature monitoring helps protect the 12V92 from excessive exhaust heat and potential head gasket damage, making this switch a valuable safety feature for both marine and stationary setups.

Detroit Diesel Green Engine Paint

To restore the original look of your Detroit Diesel engine, Diesel Pro Power provides Detroit Green Engine Paint—the authentic factory color used across the 71- and 92-Series engines. This enamel-based paint resists oil, fuel, and heat, ensuring long-lasting protection and aesthetic appeal.

Available for ground shipping within the U.S. and Canada, this paint not only enhances appearance but also offers an added layer of corrosion resistance to exposed engine surfaces, including manifolds, housings, and brackets.

Gauges and Monitoring Equipment

Diesel Pro Power also carries a complete selection of Mechanical and Electrical Gauges for Detroit Diesel 12V92 engines. These include standard mechanical gauges, mechanical gauges with alarms, and electrical gauges in both 12-volt and 24-volt configurations.

Accurate instrumentation ensures operators can continuously monitor exhaust temperature, oil pressure, coolant temperature, and other vital parameters—critical for maintaining engine performance and safety.

Why Buy Detroit Diesel 12V92 Non-Turbo Exhaust Parts from Diesel Pro Power

Proven Global Reputation

Diesel Pro Power has supplied high-quality Detroit Diesel components to over 40,000 satisfied customers worldwide. With decades of hands-on experience in marine and industrial diesel systems, the company has built a reputation for reliability, technical accuracy, and top-tier customer support.

Premium Aftermarket Parts

Every exhaust component offered—whether a gasket, flange, manifold, or fastener—is inspected and tested to meet or exceed OEM specifications. This ensures that your 12V92 Non-Turbo engine maintains its designed performance, efficiency, and emission standards.

Fast Global Shipping and Secure Ordering

Diesel Pro Power maintains a robust inventory system that allows same-day shipping on most orders. From yacht operators in the Caribbean to mining sites in South America, customers benefit from worldwide delivery and detailed order tracking. Each shipment is securely packaged to prevent damage during transport.

Expert Technical Support

Customers have access to a dedicated team of Detroit Diesel specialists who can answer installation questions, provide torque specifications, and assist in identifying the right parts for specific serial or configuration numbers. This expert guidance ensures that each purchase not only fits correctly but also supports long-term engine reliability.

Comprehensive Exhaust System Solutions

Unlike many suppliers that offer partial component coverage, Diesel Pro Power provides a complete solution for the Detroit Diesel 12V92 Non-Turbo exhaust system—covering everything from manifolds, elbows, gaskets, and insulation materials to exhaust hoses and temperature switches. This unified catalog ensures seamless compatibility and easy ordering for full-system maintenance or overhauls.