This is a set of Cylinder Head Gaskets for the Traxxas TRX 2.5 engine.
Three different thickness allow you to taylor your compression.
One each of the following thickness of gaskets: 0.15", 0.25" & 0.35".
Must be installed on the cylinder head.
Outside diameter: 0.834" (21mm)
Inside diameter: 0.590" (15mm)