Exhaust

Exhaust System Components for Cummins 6BTA Engines

The exhaust system is a critical part of engine performance, thermal control, and emissions reduction—especially in marine and industrial applications. Diesel Pro Power offers a complete selection of exhaust system components for Cummins 6BTA engines, including water-cooled exhaust manifolds, gaskets, mounting hardware, and exhaust accessories. Whether you're performing routine maintenance or a full rebuild, our marine-grade and industrial components are in stock and ready to ship.

Marine Water-Cooled Exhaust Manifold for Cummins 6BTA

For marine installations of the Cummins 6BTA, a water-cooled exhaust manifold is essential. These manifolds are designed to regulate high exhaust temperatures and prevent damage to engine bay components by using seawater to absorb and dissipate heat.

Key Features:

Marine-Specific Design: Engineered for saltwater and freshwater cooling systems.
High-Temperature Coating: Resists corrosion, rust, and scaling in harsh marine environments.
Precision Fit: Compatible with Cummins 6BTA engines in popular marine vessels like trawlers, workboats, and passenger ferries.
Improved Exhaust Flow: Optimized internal passage design reduces backpressure and improves turbocharger efficiency.

This manifold is commonly used in Cummins 6BTA marine engines rated between 210–370 horsepower and found in a wide variety of commercial vessels. Replacing your manifold with a marine-grade, water-cooled option ensures the longevity of your engine and helps prevent exhaust overheating.

Exhaust Manifold Gaskets for Cummins 6BTA

Replacing the exhaust manifold? Don’t forget the gaskets. We carry both exhaust manifold-to-cylinder head gaskets and turbo mounting gaskets, all designed to withstand extreme temperatures and provide a tight seal to prevent exhaust leaks.

Available Gaskets:

Exhaust Manifold Gasket: Seals between the manifold and cylinder head. Designed for high-pressure, high-heat performance.
Turbo Mounting Gasket: Used when the turbo mounts to a water-cooled manifold, ensuring leak-free operation in high-temperature zones.
Intake Manifold Gasket: Ensures air-tight sealing at the intake runner for proper air/fuel mixture and boost pressure.

Proper gasket replacement prevents dangerous exhaust gas leaks, helps maintain backpressure levels, and keeps your engine running clean.

Exhaust Manifold Mounting Hardware

High-strength hardware is a must for securing your manifold under thermal expansion and vibration. Diesel Pro Power offers OEM-grade screws and bolts specifically sized for 6BTA exhaust manifolds.

Hardware Options Include:

Exhaust Manifold Screws: Precision-threaded and heat-treated to resist loosening over time. Used across the 4B, 4BT, 6B, 6BT, and 6BTA series engines.
Multi-Function Bolts: Suitable for use on exhaust manifolds, alternator brackets, or refrigerant compressor mounting—making them ideal for full engine rebuilds or heavy repairs.

Installing fresh hardware ensures a reliable seal and helps avoid costly exhaust leaks or cracked manifolds down the line.

Exhaust Accessories for Industrial and Marine Cummins 6BTA Installations

Beyond the manifold itself, a complete exhaust system may include insulation, flanges, mufflers, and caps—particularly in custom industrial setups or when replacing rusted-out legacy parts. Diesel Pro Power stocks all the accessories you need to complete your Cummins 6BTA exhaust rebuild or upgrade.

Exhaust Insulation Tape

Proper insulation reduces radiant heat from the manifold and helps protect surrounding components such as wiring harnesses, hoses, or sensitive electronics. Our fiberglass-based manifold insulation tapes are available in multiple widths and lengths to accommodate a range of installations.

Options Available:

3” Wide x 100’ Long x 1/8” Thick
4” Wide x 100’ Long x 1/8” Thick

These heat-resistant tapes can handle high exhaust temperatures and provide a clean, safe solution for wrapping manifolds or exhaust pipes in both marine and industrial environments.

Industrial Exhaust Flanges and Gaskets

Custom piping often requires durable flanges and corresponding gaskets to ensure a tight seal and proper fit to exhaust systems or mufflers. Our 4” inside-diameter flanges are ideal for fabricating custom exhaust configurations or replacing worn hardware in power units and gen-sets.

Products Offered:

Exhaust Manifold Flange: Weldable or clampable flange, precision-machined for leak-free operation.
Gasket for Flange: Designed for 4” flange sealing, constructed of high-temp material to withstand thermal cycling.

These components are ideal for industrial Cummins 6BTA installations including generator sets, pumps, compressors, and construction machinery.

Industrial Mufflers and End Caps

Noise control is an often-overlooked but essential part of maintaining diesel engines in industrial settings. Diesel Pro Power offers mufflers and end caps for 4-inch diameter exhaust piping, tailored for industrial 6BTA configurations.

Mufflers

Our heavy-duty mufflers feature threaded National Pipe Thread (NPT) inlets and outlets for easy installation and compatibility with a wide range of industrial diesel engines.

Features:

4” NPT Inlet/Outlet
Low Backpressure Design
Built to Withstand Harsh Duty Cycles

These are perfect for OEM replacements or retrofitting existing machinery to meet sound level requirements.

Muffler End Caps

Protect open exhaust ports from water intrusion, debris, or contaminants using our selection of muffler caps. We offer multiple sizes to match various exhaust setups:

Cap Sizes:

3.00" Outside Diameter
3.50" Outside Diameter
4.49" Outside Diameter
5.00" Outside Diameter

Each cap is corrosion-resistant and built to last in outdoor or coastal environments. Using a cap is particularly important for idle or standby equipment, preventing moisture ingress that can lead to rust or internal corrosion.

Why Choose Diesel Pro Power for Cummins 6BTA Exhaust Parts?

With over 40,000 satisfied customers worldwide, Diesel Pro Power is the trusted source for Cummins 6BTA exhaust components. Here’s what sets us apart:

Fast Shipping: Most parts ship same day from our U.S.-based warehouse.
Marine and Industrial Specialists: We understand the difference in application requirements.
OEM-Grade Quality: Every component is built or selected to meet or exceed original manufacturer specifications.
Expert Support: Need help identifying your exhaust configuration? Our bilingual team is ready to assist.

Whether you’re overhauling a Cummins 6BTA in a commercial vessel, stationary power unit, or industrial application, Diesel Pro Power has the parts and expertise you need to keep your engine running clean and cool.