For optimum performance and protection of the electrical systems, use the new dielectric tune-up grease. Give a moisture-proof barrier that lubricates and protects boat trailer electrical equipment from dirt, salt, and corrosion. It has good thermal, oxidation, chemical stability, and high dielectric strength. Needed for modern high-energy ignition systems and prevents spark plugs from fusing to boots to maintain the life and quality of your vehicle and its parts. Typical applications include trailer hitches, spark plug boots, battery terminals, marine, and automotive electrical connections, especially the modern, high-energy ignition systems. Key Features: Protects ignition and electrical connectors, distributor caps, and spark plugs It helps extend the life of bulb sockets and prevents voltage leaks around any electrical connection. This product is interchangeable with the following: 30536 18-9011 AP30536 AP37534 92-41669-1 92-823506-1 92-823506, 1 79340375345 Specifications: SKU: 37534 Weight: 1.98 LBS UPC: 079340375345 Manufacturer Part Number (MPN): 37534 Part Type: Connector and Terminal protectants Protects electrical connections against salt, dirt and corrosion