Shoreline Truck parts over the past couple of years has conctinued to expand our replacement parts and so have begone to offer many compressor kits. Our compressors and compressor kits include all o-rings and will include the reciever drier and expansion valve according to your year model and engine. If you have any questions or cannot find something that you are looking for please feel free to contact us via text or call at (616)-834-1503.