Anyone know part numbers for a larger alternator and idler pulley for the 2001 Dakota R/T 5.9L? I'm installing a supercharger and need to take up a little more slack in the serpentine belt. Any help... websites, part numbers, suggesitons would be appreciated. Thanks! --Otis

 

Not to sound stupid but wouldnt a smaller belt be easier than trying to get bigger pulleys? I have only seen smaller pulleys. If you still want bigger pulleys how a trip to your local junkyard

 

i have the underdrive pulley kit on my truck and my alt pulley is HUGE... as far as part number i dont remember but you may wanna look into a pulley kit

 

The next smaller belt that I could find was 114". From 119.5" to 114" was waaayyy to small. Event with superman I don't think I could get the belt on. So I'm trying to reduce the slack a little with a larger pulley. Now, your idea sparked a thought today, with the other fellow who mentioned pulley size. Maybe a combination of both would work, smaller belt, AND a smaller pulley so the installation might be possible. Hey! Three brains are better than one. Thanks for taking the time to respond. I appreciate it. --Otis

 

Go too Napa, I get my blower belts there. My set up is underdriven & my Alt pulley
is smaller too.