Kenworth T800 DPF & Mufflers

Frequently Asked Questions About Kenworth T800 DPF & Mufflers

Will this DPF or muffler fit my Kenworth T800?

Fitment depends on your truck's model year, engine, and original exhaust configuration, since Kenworth T800s were built with different engine options over the years. Always check the listed specifications, including inlet/outlet diameters and overall length, against your current unit before ordering, or contact our parts team to confirm compatibility.

Should I choose a DPF or a standard muffler for my T800?

This depends on your truck's emissions system and model year. Trucks equipped with diesel particulate filter systems require a DPF unit to remain compliant and to properly regenerate and filter exhaust soot, while older or non-DPF setups may use a standard muffler. If you're unsure which your truck uses, check your original exhaust component or consult your engine's emissions documentation.

What materials are these DPF and muffler units made from, and how long should they last?

Most DPF housings and mufflers in this category are constructed from aluminized or stainless steel to resist heat and corrosion. Stainless steel options generally offer better long-term durability, especially in areas with road salt or heavy moisture exposure. Actual lifespan varies based on driving conditions, maintenance, and exhaust temperatures.

Can I install a DPF or muffler myself, or do I need a professional?

Basic muffler replacement is a job many experienced technicians or shop owners handle themselves with standard tools, provided the mounting brackets and pipe diameters match your original setup. DPF replacement or servicing is more involved, since it's tied to your truck's emissions and sensor system, so we recommend having it installed or calibrated by a qualified diesel technician to avoid fault codes or performance issues.

Will installing a new DPF or muffler affect emissions compliance?

Any DPF component you install should meet EPA requirements for your engine and model year, since altering or removing emissions equipment on a diesel truck is regulated. Standard mufflers used on non-DPF systems don't carry the same emissions considerations, but you should still confirm your setup matches your truck's original exhaust configuration to avoid compliance issues.