99 Accord water pump
 

Hi,
99 Accord V6 3.0L
To replaced the water pump how many o-rings/gaskets
do I've to replace ? Are they come with the new pump ?
How many tensioner & idler are there for the Timing Belt?
One more thing on the Fan Belt Tensioner can I get&replace
just the little bearing on the pully ? What's the part#?

Thanks in advance
LC