Review on 🚙 Reliable Rear Window Wiper Motor: GM Genuine Parts 20815337 - 9.62 in by Christopher Scales

May be listed as a Delco AC wiper motor but it is the same Bosch unit as my 2005 Saturn Relay OEM hardware. Other than that, it fits just like the original, connects properly, and works great. There are no installation instructions but this is a fairly simple replacement, you will need a torx bit and a couple of different sized sockets but other than that no special tools are required. I see a lot of "stuck" wipers on GM vans (Relay/Uplander/Terraza/Montana), I believe there is a design flaw with the rear wiper motors, there is a plastic gasket that allows dirt and water to collect and to corrode shaft that rotates the wiper. Let's hope this problem is solved and the new engine has improved sealing.