Kenworth T680 Chrome Stacks & Tops

Frequently Asked Questions About Kenworth T680 Chrome Stacks & Tops

What exactly are chrome stacks and tops for the Kenworth T680?

Chrome stacks refer to the exhaust stack pipes that route exhaust from the engine up and away from the cab, while "tops" refer to the stack caps or tops that fit on the end of those pipes. These components are typically sold separately or as sets and are used to both direct exhaust flow and add a finished, chrome-plated look to the exhaust system on your T680.

Will these chrome stacks and tops fit my Kenworth T680 without modification?

Most stacks and tops listed in this category are designed to match the diameter and mounting style used on Kenworth T680 exhaust systems, but pipe length, diameter, and mounting hardware can vary by model year and engine configuration. Always check the listed diameter and length specifications against your existing exhaust setup before ordering, and reach out to our team if you are unsure about fitment.

What material and finish should I expect from these stacks and tops?

These products are generally constructed from stainless steel with a mirror chrome finish, which is designed to resist corrosion and hold up to road exposure better than raw or painted steel. The chrome plating gives the stacks and tops the bright, polished look that is popular for highway trucks, though like any chrome part, it will require regular cleaning to keep it looking its best.

Can I install chrome stacks and tops myself, or do I need a shop to do it?

Many truckers with mechanical experience are able to swap stacks and tops themselves using basic hand tools, especially when replacing an existing stack with one of the same diameter. However, because exhaust stacks connect to piping that runs through the frame and cab, and improper installation can affect exhaust flow or create leaks, we recommend having a qualified shop handle the installation if you are not confident working with exhaust components.

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

Exhaust stack height, routing, and emissions equipment are subject to DOT and state-level regulations, so any replacement stack should maintain the same general height and clearance as the original equipment. If your stack top includes features like a rain cap, make sure it does not restrict exhaust flow in a way that could affect emissions performance or engine backpressure. When in doubt, check with your fleet safety manager or a certified shop to confirm your setup remains compliant.