Water pump pulley - Diesel Forum

Stucky · 11-19-2006, 07:33 PM

I just had to replace the pulley on the water pump of my 2003, F250, 6.0. The part that bolts on broke away from the rest of the pulley. Has anyone else had this happen to them??

GregH · 11-19-2006, 08:13 PM

Yes, it happens... There is an updated part for it if I remember correctly.

AutoJim · 11-20-2006, 09:43 AM

Replace it with the '05-up part, it's a direct swap.

OT · 11-20-2006, 11:06 AM

Recent repairs on mine included...Updated water pump pulley "5C3Z 8509 A" Why, I dont know.

Maybe pulley a tickin time bomb like other parts? [img]/ubbthreads/images/graemlins/shrug.gif[/img]

AutoJim · 11-20-2006, 02:49 PM

The early-production '03s are the only ones that *might* encounter this. There was a change mid-production year that added a reinforcing plate, and then in '05 the thicker, flanged pulley was put into production across the board to address slippage with the fan engaged on the 4.30:1 geared Tow Boss option group.