Feature: Specification: Features: Efficient Valve Compressor Tool: The air tool hose kit is designed to make the process of replacing valve springs or valve stem seals easier and more efficient. By utilizing compressed air to pressurize the cylinders, it aids in closing the valves effectively and ensures optimal performance. Versatile Compatibility: This tool kit is suitable for 4.8, 5.3, 5.7, 6.0, and 6.2L, LS1, LS3, and LS6 engines, making it an essential tool for installing new valve springs. With its wide compatibility, it caters to various vehicle models and engine types. Convenient Pump and Fittings: The included air pump comes with M14 and M18 thread adapters, featuring a ball valve and NPT threads for quick and secure connections. The internal bore is equipped with a 1/4NPT threaded interface, which is the standard sparks plug size for most vehicle. Wide Application Ranges: The tool is not limited to specific engine types or vehicle. It is widely used in gasoline engines, car, truck, boat, motorcycle, ATV, and more. Its versatility allows for multiple applications acrosss different automotive needs. Durability and Ease of Use: Crafted with high-quality materials, it exhibits nice durability, wear resistance, corrosion resistance, and rust preventing. Its robust construction ensures longevity, while its simple design enables easy installation and user-friendly operation. Specifications: Material: Metal Package Size: 225 * 105 * 60mm/ 8.9 * 4.1 * 2.4in Package Weight: 580g/ 20.5oz Packing List: 1 * Spring Compressor Tool Kit Package List: 1 * Spring Compressor Tool Kit