I have a magnuson MP90 on my Rodeo and its running 3psi at the moment the pulley size is 80mm or 3.15inches I purchased the 6psi pulley from Mace without even checking the size. Thinking a 6 psi pulley is a 6 psi pulley no matter what it's on, anyway it's

Given that we have haven't had experience with this type of vehicle we cannot confidently give you an answer. However we can refund your money assuming you have not used the pulley and you return it to us undamaged. If you have any other question please do not hesitate to ask Kindest Regards Steve