Arnott's air suspension compressor P-3194 for the 2011-2015 Lexus RX 450H is a 100% direct replacement for the original OE compressor from Lexus. This genuine Lexus Air Suspension Compressor is new and is produced by the same manufacturer as the original compressor. The compressor comes complete with a mounting bracket, valve block, air dryer, intake air hose, electrical connectors and relay for a fast plug and play installation.The most common cause of compressor failure is a leak in the air suspension system such as the rubber air springs. Arnott recommends that you to check the vehicle’s air suspension system for any leaks for optimum compressor performance.