Housing: 13" x 9-3/4"
Flat Glass: 7-3/4" Tall x 8-3/4" Wide
Convex Glass: 4-1/4" Tall x 9-1/16" Wide
Full Face Glass: 12-1/4" Tall x 9" Wide
Mounting Base: 4-7/8" W x 4-1/4" H
Arm is 8.71" L Overall.    New never installed