【Upgraded 91538】 91538 grill lighted control knobs is made of high quality heat resistant material, upgraded "D" shaped stem and added reinforcement to prevent breakage, grill lighted control knobs 91538 is professionally designed to outlast the original lighted control knobs 91538 for a longer life and a better shopping experience. It is specifically designed to match the size and specifications of the summit grill knobs 【Model】91538 grill lighted control knobs compatible with Weber Summit 400/600 Grills 2012 and later For:SUMMIT E-470 SUMMIT E-670 SUMMIT GRILL CENTER SUMMIT GRILL CENTER L SUMMIT GRILL CENTER S SUMMIT S-460 SUMMIT S-470 SUMMIT S-660 SUMMIT S-670 etc. The specific model can be searched and purchased by Ctrl+F 【About Installation】91538 knobs just remove your old version 91538 (do not bend the knob up or down) and replace it with our new control gas grill burner knobs 88848. If you are tired of replacing 91538 knobs, you must give it a try. Our summit knobs 91538 .91538 grill knobs has the advantages of corrosion resistance and high temperature resistance, more sturdy, and longer service life 【Part Information】 91538 grill lighted control knobs are specifically designed for summit grill knobs sizes and specifications. The two main burner control knobs are 2-3/8" in diameter and 5/16" in diameter at the "D" connection, and feature dark gray knobs with a chrome finish that will restore your grill and make it work like new again, exceeding OEM standards 【Excellent quality】91538 lighted control knobs has excellent quality. After purchase, you only need to use 91538 knobs with confidence. If there is any problem with the knob of the 91538 knobs, we will quickly solve your problem within 12 hours (Solve all product problems within two years.) 91538 lighted control knobs compatible with Weber Summit 400/600 grills 2012 and later Compatible with Weber:2880001 291001 291101 292101 293001 293101 294001 294101 297001 297101 298001 298101 7160001 7170001 7171001 7260001 7270001 7271001 7292001 7292101 7360001 7370001 7460001 7470001 77460001 77470001 77471001 77160001 77170001 77171001 77260001 77270001 77271001 77360001 77370001 77371001 9291001 9291101 9292001 9292101 9293001 9293101 9294001 9294101 97160001 97170001 97171001 97260001 97270001 97271001 97360001 97370001 97371001 97460001 97470001 97471001 SUMMIT E-470 SUMMIT E-670 SUMMIT GRILL CENTER SUMMIT GRILL CENTER L SUMMIT GRILL CENTER S SUMMIT S-460 SUMMIT S-470 SUMMIT S-660 SUMMIT S-670 etc.