Description:Product List: 1 Rotating Water Neck Housing and Thermostat Kit. Strong Practicality, O circle not included.Made of Aluminum: Swivel Water Neck Housing and Thermostat Kit is made of aluminum, which is strong, wear resistant, can be used for a long time and is not easy to damageRotating Water Neck Housing: Swivel Water Neck Housing has a 45 degrees water outlet, which is more in line with your usage needs. The thread diameter is M6x1Easy to use: Swivel Water Neck Housing and Thermostat Kit is designed to fit the car model, professional installation is recommended, convenient and fastApplicable: Swivel Water Neck Housing and Thermostat Kit is applicable to specified models, please confirm whether the model is applicable before purchase,For Chevy LS LS1 LS2 LS7,4.8 L,5.3 L,6.0 L EnginesSpecification:Material: AluminumSize Chart:Packing size 9cmx9cmx8cm/3.54inchx3.54inchx3.15inchPacking size 7cmx7cmx7cm/2.76inchx2.76inchx2.76inchPackage Includes:1 Rotating Water Neck Housing and Thermostat KitNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!