This set of 8 Motorcraft A52 spark plugs is the perfect fit for Dodge and International Harvester vehicles that use gasoline fuel. Each plug has a 14 mm thread diameter and a 13/16 inch hex size for easy installation. The spark plugs are made of high-quality copper material and have a vintage design, making them a great addition to any classic car restoration project. The A52 plugs have a voltage rating of 12 V and an installation depth of 3/8 in. They are interchangeable with part numbers 45S, J14Y, and 76, as well as OEM part number 5612390. These standard configuration spark plugs are manufactured in the United States by Motorcraft, a trusted brand in the automotive industry. Upgrade your vehicle's ignition system with this set of Motorcraft A52 spark plugs.