just trying to save you some trips to the parts store - even the guy who i bought if from on ebay told me that his parts book said it wouldnt fit (even thought it was listed on the website as a fit) but i told him as long as it was the one in the picture it was the one i needed - and it was - and im pretty sure your 99 would have the exact same but to be sure you can either look on the compressor or even easier there is a sticker under your hood up by the drivers side glass that tells which model you need