The AO Smith – Water Heater Igniter 100110771 / 9005958005 is a genuine replacement igniter designed to restore proper burner ignition in select AO Smith gas water heaters.
Full Product Specification:
Part Type: Hot Surface Igniter
Part Code: 100110771 / 9005958005 ( Older Part Code )
Use: Gas water heater ignition
Also Compatible With:
- Replacement AO Smith Igniter 100110771 / 9005958005 / 768A-423
What’s Included
- 1 × Replacement AO Smith igniter assembly (100110771 / 9005958005 / 768A-423)
- Fittings
- Mounting brackets
- Wire harness
Why Choose Direct Brand ?
Trusted Since 2001
Direct Brand has supplied reliable heating and water heater replacement parts across the U.S. for more than two decades.
Fast Processing & Shipping (USA)
We work efficiently to get your order shipped and delivered as soon as possible.
Clear Fitment Guidance
We list both new and older part codes to make it easier to confirm compatibility before ordering.
Multiple Secure Payment Options
Pay with Apple Pay, Google Pay, Mastercard, Visa, American Express, and Pay with Link.
FAQs
Q1: Will this igniter fit my AO Smith water heater?
If your unit lists igniter 100110771 or 9005958005, this genuine replacement is designed to fit.
Q2: Can I install this igniter myself?
Installation should be performed by a qualified engineer or technician, as handling ignition components requires proper tools and safety procedures.
Q3: What is the difference between 100110771 and 9005958005?
100110771 is the newer, updated code
9005958005 is the older code used in previous AO Smith






