View 4 Photos View 0 Videos Used 2006 Peterbilt 378 Instrument Control Unit (ICU), Part # Q21-1029-1-110 $1,285 USD Used Peterbilt Instrument Control Unit (ICU), P/N: Q21-1029-1-110, ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378Stock Number94213 MLS Number12843747CategoryElectrical Misc. Parts Last Updated3/24/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info