This is an Industrial Injection Fire Ring gasket kit, ideal for 2007.5 - 2018 Dodge Ram trucks with 6.7L Cummins engines. It's crafted from high - quality gaskets and rings. You have two purchase options. You can buy it for a machine shop to cut grooves in the head, and it comes with instructions. Or, you can get it paired with Industrial Injections cylinder heads that already have the grooves cut. The part number is PDM - 54774. Fire Ring Specs: Diameter is 4.550', thickness is.105', and groove depth ranges from.043' to.045'.

Using this fire ring gasket kit is straightforward. First, make sure your engine is cool and you've drained all the fluids. If you've bought the kit without pre - cut grooves, take it to a reliable machine shop to have the grooves cut into the head as per the instructions provided. If you got the kit with pre - cut cylinder heads, you can start the installation right away. When installing, clean all the surfaces thoroughly to ensure a good seal. Be careful not to damage the gaskets or rings during the process. For maintenance, check the gaskets regularly for any signs of wear or leaks. If you notice any issues, replace the gaskets promptly. Store the kit in a dry and cool place when not in use to maintain its quality.