It comes as a radiator and a separate fitting kit but no instructions whatsoever- maybe there is a YouTube video… I didn’t use any of the kit, the one bit that I needed (expansion tank spigot) didn’t fit so I reused the existing one. Easy to fit (Peugeot 307) if you ignore the Haynes Manual and don’t remove the front bumper - you can bend the cowl out of the way to access the radiator mount screws. It’s not the quality of the Valeo original but it is decent and good value.