not used them mate , can only opinion that if they are advertised for the year of manuf re your bus, they must come with a years ticket, ?so , apart from price, why not? i would , my 1st call is usually to GFS for parts ,ihave certainly found that certain companies i.e. those selling camper parts can and do mark up the price on a lot of stuff simply because they can, and as i expect u know ,most expensive aint nec. better !