For all the parts needed is $61.79.Belt,tensioner and water pump.Trick is to find shop who will use your parts.Labor is usually the killer on a Honda belt replacement,and worth it.110K isn't too bad for a Honda if it's had good service.You should be able to put 500K on a Honda before it starts getting tired and dated.Belt replacement is good insurance for peace of mind.You wouldn't want to lose belt in stop and go traffic! I got my kit at same site,delivered in two days as advertised.Quality parts.No,it is not necessary right away to replace belt,but put it on the top of your "Do" list.My original lasted for 272K!