3.Functionality: Solenoid and vacuum check valve kit takes care of front-end clacking noises, engaging the 4WD system for a smooth, quiet ride.
4.High quality materials: The solenoid valves are precision made of metal and high grade plastic, while the vacuum check valves are made of high grade plastic and rubber to withstand high temperatures and various road conditions. They can withstand different driving styles, are reliable and durable, with stable performance and long service life
5.Easy to install: design and functionality comparable to the original to ensure a perfect match and compatibility, no need to spend money on hiring a professional, easy to install, saving time and effort