Arnott's air suspension compressor P-3187 for the 2001-2006 Lexus LS 430 (XF30 Chassis) 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, integrated air dryer, and electrical connectors 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 check the vehicle’s air suspension system for any leaks to maintain your warranty and for optimum compressor performance.