Refurbished OEM Oldsmobile crank shaft pulley with 3 grooves for vehicles equipped with A/C. Code KB. 

7-7/8" diameter

2-7/8" depth

Please measure for your application. This will not work with all 3 groove water pump pulleys. In some cases the depth may be different or the diameter too large. 

This was pulled off a junk yard Oldsmobile 455 during a rebuild. It was rusty and had a dent in the outer groove. The dent was pounded out. It has been sand blasted and protected with 1 coat of self etch primer and 1 coat of epoxy primer from a rattle can. It is ready to painted and put to use. 

There is some left over pitting in several places and the dent could not be completely removed. Both are strictly cosmetic issues that should not affect functionality in most applications.

Thanks for looking!