Not all 3889372 Pulleys are the same

[Joseph A.]

I have owned 2 67 Corvette 427's with A/C, 1 which I still have and on both cars the water pump pulleys for this application is stamped 3889372. The font is a little rounder and larger than the 68/69 pulley and the is no broadcast code. I also have a 1969 L89 Coupe and my friend has a 1968 427/400 with A/C and the 68/69 pulleys on both cars are also stamped 3889372 but the font is smaller and they has the broadcast code of BF. I have included pictures of both.

[Daniel E.]

Re: Not all 3889372 Pulleys are the same

Does the pulley without the broadcast code have an 'S' opposite the part number?

Photos of a 3889372 pulley from a wrecked 67, having the same font/size for the part number, no broadcast and the 'S' opposite the part number.

I believe it was the original to the car, but can't guarantee it.

[Peter M.]

Re: Not all 3889372 Pulleys are the same

Hi Joseph,
My mid April 67 390hp, C60, K19 has the same pulley as Daniel.
Kind Regards.

[Joseph A.]

Re: Not all 3889372 Pulleys are the same

Yes the "S" was stamped in the pulley