Auto Ventshade 12503 Ventshade with Stainless Steel Finish, 2-Piece Set for 1987-2004 Peterbilt 320, 357, 372, 375, 376, 359 Conversion, 362 Cab Over, 377 Hi-Performance, 378 Conversion, 379 Integrated Keeps rain out and lets fresh air in, helps to reduce heat buildup in parked vehicles by allowing window to be partially open Manufactured from high quality stainless steel with a polished finish Ledge profile that is mounted in the window channel Quick and easy installation Proudly made in the USA and backed by a Limited Lifetime Warranty