I need to get a water pump i went through all the posts i cant get a part number for the 03 04 oem water pump. I called the dealer and its discontinued but it still might be available through 3 rd party oem dealer. I would get the navi pump but i dont want an electric fan and i cant find any mad mikes adaptor for sale, so the navi pump is out of the question. is my stock pump the same as the 03 - 04 lightning (i think mine is also discontinued). i have a 03 hd. i think my local machine shop can duplicate mad mikes if some has an extra one