4 0 2021 Kenworth Charge Air Cooler (ATAAC) for a Kenworth T400 $90 USD Charge air cooler hose pulled from a 2021 Kenworth T4 series run for only 7,425 miles, non-wrecked. Hose is in good used condition, see pictures. Part location pictured. OEM P/N D50-1131 REV... ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T400Stock Number6402 MLS Number12302081CategoryCharge Air Coolers (ATAAC) Last Updated7/17/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info