Product information updated on 2021-09-21, Manufactured by Air lift - Part Number AIR:60732, 2004 to 2018 Toyota Sienna Air Lift 1000 Air Spring Kit, , Air Lift Company's Air Lift 1000 provides up to 1,000 lbs. of load-leveling capacity. Air Lift Company's air bag kits for Sports Utility Vehicles and vans provide greater safety and comfort when you're carrying a heavy load.