The life blood of your engine, a lack of oil pressure is one of the most catastrophic scenarios that can happen. Knowing the precise pressure is critical to both its longevity and performance, as well as your peace of mind. Auto Meter's Mechanical Oil Pressure Gauge utilizes the most advanced bourdon tube meter movement on the market to deliver accuracy and durability you won't find anywhere else. A simple 1/8" NPT connection makes installation easy. Fittings and nylon tube are included and optional braided stainless line kits are available. Includes bulb and socket assembly with red and green bulb covers. Includes 10 ft. Nylon tubing. Includes 1/8" NPT Male to 1/8" compression fitting, 1/8" NPT Female to 1/8" compression fitting, 1/8" NPT to 1/4" NPT bushing.