2 0 2021 Kenworth Exhaust Stack for a Kenworth T400 $90 USD Air transfer tube / turbo air transfer tube pulled from a 2021 Kenworth T4 series run for only 7,425 miles, non-wrecked. This truck was a PACCAR PX9 application. Part is in good used... ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T400Stock Number6401 MLS Number12302080CategoryExhaust Stacks Last Updated4/29/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info