Supco Water Heater Igniter, 9003626005, 100109355, SSN6005

Water Heater Igniter | Replaces AO Smith® 100109355 | Supco® SSN6005 Premium Silicon Nitride Upgrade

Brand new Supco® Water Heater Igniter, part numbers SSN6005 and 100109355, designed as a direct replacement for AO Smith® part number 100109355. This premium silicon nitride igniter is engineered for superior durability and longer service life compared to standard igniters. Featuring an 80-volt direct drop-in design, a 5-connection Molex plug, and an included metal mounting bracket, this replacement igniter helps restore dependable burner ignition and efficient water heater operation.

⚙️ Product Specifications

• Part Number: SSN6005
• OEM Reference: 100109355
• Product Type: Water Heater Igniter
• Voltage: 80 Volts
• Material: Premium Silicon Nitride
• Connector: 5-Connection Molex Plug
• Includes: Metal Mounting Bracket
• Application: Gas Water Heater Ignition System
• Design: Direct Drop-In OEM-Compatible Replacement
• Condition: Brand New – Unused

❓ When to Replace Your Water Heater Igniter

• Water heater will not ignite
• Intermittent burner lighting occurs
• No hot water is being produced
• Igniter is visibly cracked or damaged
• Burner ignition becomes unreliable
• Igniter has failed electrically

Replaces OEM Part Numbers

9003626005
900362115
9003627005
9003627115
9004041005
9004602215
100109355

Compatible Water Heater Applications

Compatible with select AO Smith®, State®, American Water Heater®, and related water heater models utilizing igniter part number 100109355. Please verify your complete model number and original part number before purchasing to ensure compatibility.

️ Common Fixes

• No ignition condition
• Intermittent burner operation
• Water heater not heating
• Failed or cracked igniter
• Burner startup failures
• Ignition system faults
• Unreliable hot water production

️ Installation Tips

• Turn off gas and electrical power before servicing
• Allow the burner assembly to cool completely before repair
• Handle the silicon nitride igniter carefully to prevent damage
• Verify the 5-pin Molex connector is fully seated
• Secure the included mounting bracket firmly during installation
• Test burner ignition and water heater operation after replacement

Upgrade your water heater with this premium Supco® silicon nitride igniter for stronger performance, enhanced durability, and dependable long-term operation compared to standard OEM igniters.