Weber #40428 Burner Kit for Summit 4 Burner Grills Weber # 40428 Stainless Steel Burner Kit for specific Summit 4 Burner Grills. includes 2 right, 2 left and 2 crossover burner tubes. MEASURE you current burner tubes, end to end, before ordering to help ensure you order the current tubes. Main burners are 21-1/8" long tip to tip and crossover burner is 6-7/8" long. Please visit Weber's website to ensure you order the correct parts for your specific grill. It is best to look up by serial #. The following link will also help you find the alpha numeric number. http://help.weber.com/schematics/#serial-number