Check the listing for details. 100110271 | 9005105015 | 210871-0 | 210871 | A.O. Smith PILOT BURNER. Condition: New. Listed at 100.00 USD. 100110271 | 9005105015 | 210871-0 | 210871 | A.O. Smith PILOT BURNER Condition: New*Genuine OEM Part* Description:Replacement pilot assembly IMPORTANT: Water Heater parts and accessories should only be installed by qualified technicians. Failure to understand and follow the manufacturer’s installation and use instructions may result in fire or explosion, electric shock, property damage, injury or loss of life. It is your responsibility to seek professional advice when installing and using these parts and accessories.⚙️ Will This Part Work for My Water Heater?This part is listed by A.O. Smith as being compatible with the following models:HW 300-100 (HW 300, 100 Series) - Natural GasHW 399-100 (HW 399, 100 Series) - Natural GasHW 420-100 (HW 420, 100 Series) - Natural GasHW 520-100 (HW 520, 100 Series) - Natural GasHW 670-100 (HW 670, 100 Series) - Natural GasHW 399-932 (HW 399, 932 Series) - Natural GasHW 420-932 (HW 420, 932 Series) - Natural GasHW 520-932 (HW 520, 932 Series) - Natural Gas***WATER HEATER PARTS ARE MODEL SPECIFIC. IF YOU NEED HELP VERIFYING WHETHER THIS PART IS COMPATIBLE WITH YOUR WATER HEATER PLEASE MESSAGE US WITH YOUR UNIT'S MODEL + SERIAL NUMBER. WE RECOMMEND SENDING A PICTURE OF YOUR WATER HEATER'S RATINGS PLATE (THE LABEL WITH THE MODEL AND SERIAL NUMBERS) AND THEN TYPING OUT BOTH NUMBERS IN YOUR MESSAGE*** 📦 Shipping + Returns:All items ship 1 Business Day after payment receivedReturns accepted within 14 days - *PART MUST BE UNUSED* Thanks for looking + please check out our store for more water heater parts! 🛒🛍️⚙️