On Sale Choose Options Peterbilt 379 389 Darwin Cab Cowl Panel By RoadWorks RoadWorks MSRP: $750.95 Now: $668.35 - $1,445.95 Was: Peterbilt 379 389 Darwin Cab Cowl Panel By RoadWorks *389 Option Fits Trucks With Tool Box On Passenger Side, Glider, Deleted/Removed DPFs & Weed Burner Exhausts Darwin One-Piece 6" Face Cab & Cowl Panels Fits Peterbilt 379 & 389... MSRP: $750.95 Now: $668.35 - $1,445.95 Was: Choose Options