This was an exact OEM fuel petcock replacement part for the Yamaha Beartracker 4-wheeler. I decided on this part vs. the re-build kit because for a few dollars more it came complete with the two fuel filters attached and every measurement was correct. The filters are important as they will fall apart over time. The new part stopped the fuel leak and it was a simple switch out. Just remember to save the original screws which bolt to the fuel tank. You can watch a U-Tube video showing exactly how to replace in 15 minutes. For extra performance insurance, I only use ethanol-free gasoline in any smaller engine. Chris H. - central Missouri