This cap is for the oil screen filter assembly used within right crankcase cover and is compatible with many GY6 150cc go karts, UTVs, & CUVs.
* This is compatible with for the Yerf-Dog 4x2 utility vehicles (Scout, Rover, or Mossy Oak).
Also referenced as a Cap Tappet Adjusting Hole Assembly Valve Cap, part number 12360-119-000 or 0452368