Cummins Onan P4500i High Altitude Carburetor - A058V024

The high-altitude carburetor kit includes carburetor jets and carburetor seals for operation at altitudes above 2000 feet above sea level. The high-altitude carburetor jets fit the 224cc Onan 4500i generator engine. As altitude increases, the amount of oxygen in the atmosphere decreases by approximately 3 percent for every 1000 feet in elevation. The factory installed carburetor jets perform best at altitudes below 2000 feet. Above 2000 feet, the fuel-to-air mixture becomes too rich. High altitude jets provide the right mixture of fuel and air.