Community Forums

DiddyPnut · 12-09-2019, 08:34 AM

I have a 2011 Allegro Bus QXP with the ISL9 and called Tiffin and asked about the fan belt (double belt) since their website shows two belts. The rep told me the #5015142 @ $75 was the correct belt so I ordered and just replaced it. In looking at my chassis manual, the book calls for a RSVX-750-2 Tiffin #32306 @$45. Concerned I may have the wrong belt, I called Tiffin today and they said the belts are the same, that one is a Tiffin number and the other is a vendor name (Manual says Carlisle).

Has anyone run into this before or have experience with these belts? The ONLY concern I have is there is little adjustment left but the good side is it's long enough to install without removing either the fan or crank pulley. My setup does NOT have the auto tensioner on the fan belt.

Thanks...

deprived · 12-17-2019, 02:48 PM

Quote:

Originally Posted by DiddyPnut

I have a 2011 Allegro Bus QXP with the ISL9 and called Tiffin and asked about the fan belt (double belt) since their website shows two belts. The rep told me the #5015142 @ $75 was the correct belt so I ordered and just replaced it. In looking at my chassis manual, the book calls for a RSVX-750-2 Tiffin #32306 @$45. Concerned I may have the wrong belt, I called Tiffin today and they said the belts are the same, that one is a Tiffin number and the other is a vendor name (Manual says Carlisle).

Has anyone run into this before or have experience with these belts? The ONLY concern I have is there is little adjustment left but the good side is it's long enough to install without removing either the fan or crank pulley. My setup does NOT have the auto tensioner on the fan belt.

Thanks...

I don't have the exact same rig as yours - we run the 6.7 ISB. But finding the correct replacement belt took a few tries. I ended up measuring the old belt's outside length/circumference and ordering my Gates Green belt based on that.

DiddyPnut · 12-27-2019, 06:57 AM

I appreciate the info. Gates belts were installed when I purchased the coach but I changed all belts to know their age. I'm a solid believer in Gates belts and hoses but one of the two replacement belts must have been defective because it was ever so slightly longer than the other and after 10,000 miles it had siginificant stretch. That's when I decided to try the Tiffin belts and realized the OEM was a double belt, not two separate ones. After a few thousand miles all is well. I was curious if others had run into the different belts.