2004 Sante 330 excalibur serpentine belt

[2004Nautique]

Got a new belt pcm RO66028.... belt seems too small.

5.7 liter ... can't get it over the tensioner when I collapse it.

Anyone got a belt number either pcm or automotive that would fit?

[James]

That should be the correct part # for your 5.7 Excal and should be the same belt that you took off. Are you sure you are routing it correctly on the pulleys?

[Infinity]

The tensioner is not the last pulley you take the belt over to install it, the idler pulley is. A new belt has not yet been stretched at all.... on my ZR409 with new belt I slip it over the "flat edge" of the idler pulley last. The tensioner has a lip on the edge and prevents that one from being the last. (this is at least my best guess of whats going on)