Exhaust System Components for Cummins KTA19 Engines

The Cummins KTA19 diesel engine is engineered to deliver high-output performance across marine, mining, drilling, and stationary industrial power systems. To support that level of output, the exhaust system must efficiently manage extreme temperatures and high-pressure gases while maintaining durability and reliability. A properly functioning exhaust manifold and turbo mounting setup are key to engine efficiency, emissions control, and performance longevity.

This section covers all available exhaust components for the Cummins KTA19, from the manifold gaskets to turbo mounting hardware, heat insulation, flanges, and industrial mufflers. Whether you're performing a top-end rebuild or addressing system leaks and heat issues, Diesel Pro Power offers a curated selection of in-stock components for rapid delivery worldwide.

Exhaust Manifold Assembly for Cummins KTA19

Cummins KTA19 Exhaust Manifold Overview

The exhaust manifold on the KTA19 engine collects high-temperature exhaust gases from each cylinder and directs them to the turbocharger. This component is subjected to repeated thermal expansion and contraction cycles, and as such, both the manifold and its gaskets must be in excellent condition to avoid power loss, heat damage, or gas leaks.

Functions of the Exhaust Manifold:

• Directs exhaust gases from the cylinder head to the turbocharger
  
  

• Prevents hot gases from escaping into the engine compartment
  
  

• Reduces backpressure for optimized turbo performance
  
  

• Plays a vital role in engine thermal management
  
  

Symptoms of Exhaust Manifold Issues:

• Audible exhaust leaks (popping or ticking sounds)
  
  

• Visible soot or carbon buildup near joints
  
  

• Reduced turbo boost or power loss
  
  

• Higher-than-normal exhaust gas temperatures (EGT)
  
  

Exhaust Manifold Gaskets for KTA19

Exhaust Manifold Gasket – KTA19

Designed to seal the connection between the cylinder head and the exhaust manifold, this gasket must resist high temperatures and pressure without deforming or breaking down over time.

Key Features:

• High-temperature resistant material
  
  

• Engineered to withstand thermal cycling and vibration
  
  

• Ensures a tight seal between the head and the manifold
  
  

• Helps prevent soot deposits and carbon tracking around the joint
  
  

This gasket should always be replaced whenever the exhaust manifold is removed for inspection, repair, or when cylinder head maintenance is performed.

Turbo Mounting Gasket for KTA19

Turbocharger Mounting Gasket

This gasket seals the interface between the exhaust manifold and the turbocharger turbine housing. On high-performance engines like the KTA19, this connection must handle extreme heat and pressure without leaking.

Applications:

• Used on water-cooled or oil-cooled turbochargers
  
  

• Essential for maintaining boost pressure and gas flow to the turbo
  
  

• Prevents exhaust gas leaks that can reduce turbo efficiency and increase EGT
  
  

Replacement is recommended during any turbo service, manifold work, or if visible soot appears near the turbo flange.

Heat Insulation for KTA19 Exhaust Manifold

High exhaust temperatures can radiate into surrounding engine components, affecting hoses, sensors, and wiring. Proper insulation not only helps protect nearby parts but also improves exhaust gas velocity by retaining heat within the manifold.

Manifold Insulation Tape – 3" x 100'

This high-quality heat wrap is designed to be tightly wound around exhaust manifold runners to contain and manage radiant heat.

Specifications:

• 3 inches wide, 1/8 inch thick, 100 feet per roll
  
  

• Designed for marine and industrial diesel engines
  
  

• Withstands continuous exposure to high temperatures
  
  

Benefits:

• Protects nearby components from radiant heat
  
  

• Improves exhaust gas velocity by retaining thermal energy
  
  

• Reduces under-hood or engine bay temperatures
  
  

Manifold Insulation Tape – 4" x 100'

This wider tape offers broader coverage per wrap and is especially useful on larger manifold sections, elbows, and turbine outlets.

Industrial Exhaust Flange & Gasket Components

For custom exhaust fabrication, stack extensions, or remote muffler installations, having the correct exhaust flange and gasket components is essential.

4" Exhaust Flange for Industrial Manifolds

This heavy-duty flange is built to mate with standard 4-inch exhaust manifolds used in marine and stationary applications. Machined to tight tolerances for secure gasket seating and bolted fitment.

Specifications:

• 4" inside diameter
  
  

• Cast and machined steel
  
  

• Compatible with industrial-grade exhaust tubing and elbows
  
  

4" Flange Gasket

This flat gasket forms a pressure-tight seal between the manifold flange and the connected pipe or elbow. It prevents leaks and ensures proper exhaust backpressure control.

Ideal Use Cases:

• Custom marine exhaust system builds
  
  

• Industrial exhaust stack connections
  
  

• Remote-mounted turbo setups
  
  

Muffler Options for Industrial Cummins Engines

4" Industrial Muffler

For noise control in marine, generator, or pump applications, this industrial muffler is designed to attenuate exhaust sound without restricting gas flow.

Key Features:

• 4-inch NPT (National Pipe Thread) inlet and outlet
  
  

• Compatible with Cummins KTA19 exhaust systems using flange or pipe connections
  
  

• Heavy-duty construction with corrosion-resistant materials
  
  

• Internal baffle design reduces noise without increasing backpressure
  
  

Use this muffler in sound-sensitive environments such as enclosed machinery rooms, vessel engine rooms, or fixed equipment installations.

Exhaust Pipe Caps – Protection for Idle Equipment

Unused or stored engines benefit from protective caps that seal off the exhaust system to prevent moisture, debris, and pests from entering.

Cap Options Available:

• 3” Cap: Fits exhaust outlets with a 2.99” OD
  
  

• 3.5” Cap: Fits outlets with a 3.50” OD
  
  

• 4.5” Cap: Fits outlets with a 4.49” OD
  
  

• 5” Cap: Fits outlets with a 5.00” OD
  
  

Applications:

• Engine storage and transport
  
  

• Equipment that is periodically shut down
  
  

• Machinery parked outdoors or in corrosive environments
  
  

Caps are easy to install and remove, helping extend the life of the exhaust manifold and turbo components.

Exhaust System Maintenance Best Practices

Common Maintenance Intervals

• Every 1,000–2,000 hours: Inspect exhaust manifold bolts and check for leaks
  
  

• During major service: Replace exhaust and turbo gaskets if disturbed
  
  

• Annually: Re-wrap or re-torque insulation tape if installed
  
  

• After overheating events: Visually inspect all exhaust gaskets and seals
  
  

Preventative Tips

• Always use new gaskets during turbo or manifold installation
  
  

• Inspect flange surfaces for pitting, warping, or cracks before reassembly
  
  

• Use high-temperature anti-seize on bolts to prevent galling
  
  

• Verify that all joints are properly torqued to manufacturer specifications
  
  

Summary of Available Exhaust Components for Cummins KTA19