Engagement of the all-wheel drive (AWD) system is crucial during slippery weather conditions. Our AWD Coupling Oil Pump will create enough pressure to allow the rear differential to properly utilize all AWD capabilities. Product Features:Easy installation; just plug into the mating componentReplacement prevents an inoperable All-wheel Drive (AWD) systemO-rings included for a complete repairThis part has undergone vehicle try-on testing for conformance to product standards and quality