Mack CH/CHN/CHU Truck Chrome Stacks & Tops

Frequently Asked Questions About Mack CH/CHN/CHU Truck Chrome Stacks & Tops

What are chrome stacks and stack tops used for on a Mack CH/CHN/CHU?

Chrome stacks are the exhaust pipe sections that route exhaust up and away from the cab, while stack tops (also called exhaust tips or rain caps) cap the top of the stack to help keep out moisture and debris. On Mack CH, CHN, and CHU models, these components are also a popular way to dress up the exterior with a polished, chrome finish.

Will these chrome stacks fit my specific Mack CH, CHN, or CHU model year?

Stack diameter and length can vary depending on the model year and the exhaust system originally installed on your truck, so it is important to measure your existing stack or check your truck's exhaust specs before ordering. If you are unsure, our team can help you confirm the correct diameter and length for your specific Mack setup before you buy.

What material are these stacks and tops made from, and how do I keep them shiny?

Most chrome stacks and tops in this category are constructed from stainless steel with a chrome-plated or polished finish, offering a bright, reflective look. To maintain that shine and resist heat discoloration over time, regular cleaning with a chrome-safe polish is recommended, especially since these parts are exposed to constant heat and road grime.

Can I install a chrome stack or top myself, or do I need a professional?

Many stack tops are a straightforward slip-fit or clamp-on installation that experienced truck owners can handle in their own shop. Full stack replacements may involve more work, including matching existing mounting brackets and ensuring a proper seal at the connection points. If you're not confident working around your exhaust system, having a qualified diesel shop install it is a safe option.

Are there any regulations I should be aware of when replacing my exhaust stacks?

Exhaust stack height, placement, and emissions components are subject to federal and state regulations, and altering your exhaust system could affect compliance if not done correctly. We recommend keeping stack height and configuration consistent with your truck's original setup and checking your local and DOT requirements before making changes.