Genuine Weber part # 40428, Stainless Steel, Burner Tube Kit for Summit 400 Series Prior to 2000 . Main burners are 21-1/8" long tip to tip and crossover burner tube is 6-7/8" long. Kit includes: 2 ea # 92395 2 ea # 92366 2 ea # 63664 crossover tubes Fits the following models-151001 Summit 400 Gas Grill, 161001 Summit 600 Gas Grill, 261001 (1998-2000) Summit 425 Gas Grill, 261002 (1998-2000) Summit 425 Gas Grill, 261102 Summit 450 Gas Grill, 921001 Summit 400 Gas Grill, 921002 Summit 400 Gas Grill, 971002 Summit 475 Cooking Module