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ALL-MAKES PARTS


Keep your truck’s exhaust system running clean and quiet for improved performance and a calmer ride

How do you know when your truck’s exhaust system is working properly? Chances are, when you don’t even notice it.

When all is well with the exhaust system, the truck is quieter, emissions are lower and the system's back pressure is stable.

The challenge is to create a balanced system. Too many muffler baffles can shut down the exhaust flow. Too much flow, however, can lead to excessive noise. And if the back pressure rises too high, the fuel-and-air mixture may become trapped in the combustion chamber, causing the engine to stall.

If you’re looking to improve your exhaust system, your local KENWORTH PremierCare® Parts and Service dealership carries quality Acrafit® all-makes exhaust components, including chrome pieces for an enhanced look.

Many Acrafit components are available in various grades, so you can choose the products that best suit your truck and your budget. For example, Acrafit flex tubing is offered in galvanized, aluminized and stainless steel.

KENWORTH PremierCare also offers experienced and knowledgeable personnel to evaluate and repair your truck’s exhaust system. If you’re unsure about whether your truck’s system is in need of an upgrade, read on for ways to recognize common problems, then visit your local Kenworth dealer for more information.

Noisy exhaust system? Consider the following:

  • Inexpensive flex tubing is usually the first area to fail, and the first place to check for noise leaks.
  • Make sure the hangers supporting the exhaust system are not too loose … or too tight.
  • Installing a dual muffler ("Y" connector) system can reduce noise by more than 50%.
Around the muffler: Inspect the area around the clamps for cracks and rust-through where noise, soot and even exhaust gases can escape.

Elbows, stacks and exhaust pipes: Dented or crushed tubing restricts exhaust flow and increases back pressure. Even small dents can reduce fuel economy and increase turbocharger wear, as well as raise exhaust temperatures.

For more information on evaluating and enhancing your truck’s exhaust system, visit your local Kenworth dealer.