If you were to buy this based on the photos you would think it comes fully assembled but you would be wrong. Each part comes in a plastic bag, which wouldn't be a big deal if it came with assembly instructions, but all it has are instructions on how to bleed the brakes. As a bonus, assembly instructions are not available on the Dorman website or any other website I can find. You have to figure out how it fits together and the gaskets that you eventually convince yourself don't fit in that part…