TruckShroud 6027 Day Cab Rear Window Glass - Tinted  Peterbilt 335; 337; 348; 357; 365; 377; 378; 379; 385; 388; 389 Will not work for the older day cabs with a smaller window most are pre 1996 but some of the old cabs were produced until 2000 OEM Part Number:  R44-6027-2