Boost Auto Parts offers a full range of replacement upper glass compatible with all OEM and aftermarket Silverado and Sierra tow mirrors. Please reference the graphic to determine if you can purchase glass that simply snaps onto the motor, or if you will need to remove your broken glass from the backing and glue on a new piece of Boost Auto glass only. 

All Boost upper glass with backing has the red signal integrated as well as the defrost function. 

Cross References to GM OEM numbers: 23444110 & 23444109

Installation Video for Glass Only:

Note: If you remain unsure which product to purchase please contact us with pictures of the back of your glass, and the mount it came off of.