50 Buick Roadmaster heater blower

There were two motor types used on the 1950 defroster according to the Buick parts catalog. The early motor is GM part no 5047637. The late one is 5047656. I was not able to determine the difference, but likely it is something minor.

Both these numbers were superseded by the 5047733. This one replaced a bunch of earlier motor numbers. It appears to have been used on other GM vehicles as well.

There are several NOS examples of these motors up for sale on eBay, etc.
 

CALLBALD

Member
There were two motor types used on the 1950 defroster according to the Buick parts catalog. The early motor is GM part no 5047637. The late one is 5047656. I was not able to determine the difference, but likely it is something minor.

Both these numbers were superseded by the 5047733. This one replaced a bunch of earlier motor numbers. It appears to have been used on other GM vehicles as well.

There are several NOS examples of these motors up for sale on eBay, etc.
Many thanks.
 
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