The cost of a new timing belt can vary depending on how you intend to go about replacing it.u003cbru003eIf you're going to be fixing it yourself, it should cost you less because you will not have to pay for labor. However, if you will be giving the job to someone else to do for you,  then you need to consider the cost of labor.u003cbru003eOn average replacing a new Subaru timing belt would cost around $600.u003cbru003eNow the timing belt itself could go for about $30 to $50. On the other hand, labor can go from $200 up to $600.u003cbru003eNevertheless, it is much more advisable to allow a professional mechanic to help you with a timing belt replacement. It can save you time and money.