View 4 Photos View 0 Videos Eaton-Fuller RTLO18913A Chassis Control Module for a 2015 Peterbilt 579 $495 USD GOOD USED PETERBILT 579 CHASSIS CONTROL MODULE. PN#Q21-1077-3-103, Serial#: A2C80703100, Core Charge: NA, Engine Make: Cummins, Engine Model: ISX15 ConditionUsedEngine ModelCummins ISX15Fits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Part NumberQ21-1077-3-103Stock Number82123-29 MLS Number14565217CategoryChassis Control Modules Last Updated8/26/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info