Buick 2015 Regal Owner's Manual page 348

Wiper Blades
Driver Side 60.0 cm (23.62 in)
Passenger Side 45.0 cm (17.7 in)
Part
I n f o r ma t i o n P r o v i d e d b y :
Service and Maintenance
GM Part Number ACDelco Part Number
13227404
13227405
11-13