BTH/SUF/HCG Boiler Igniter w/ 1.75" Neck Replaces AO Smith, 100110899, DS017KX

Surface Igniter DS017KX | Replaces AO Smith 100110899 | High-Efficiency Boiler Ignitor

Restore reliable ignition performance in your AO Smith commercial boiler with this brand-new hot surface igniter. The DS017KX features a 1.75" neck and includes an insulated mounting gasket for secure, leak-free installation. Designed for high-efficiency operation across natural and propane gas systems, this ignitor ensures consistent burner startup and safe combustion.

⚙️ Product Features:

• Model: DS017KX
• Fuel Type: Natural Gas & Propane
• Neck Length: 1.75"
• Includes: Insulated mounting gasket
• ⚡ Ignition Type: Hot Surface Ignitor (HSI)
• ️ OEM Reference #: 100110899
• Alternate Part #: 60-120, 100-150, 100-199, 100-250, 9006101205, N45-573
• Condition: Brand New – Unused

✅ Compatible AO Smith Boiler Series:

BTH Series, SUF Series, HCG Series
(Please verify compatibility using your boiler’s model number before purchase.)

️ Installation Tips:

• Disconnect power and shut off gas supply before servicing
• Access burner compartment and locate existing ignitor
• Remove old ignitor and gasket carefully to avoid damage to mounting surface
• Install new DS017KX ignitor using included gasket for proper seal
• ✅ Reconnect wiring and test ignition sequence before full operation

OEM-grade ignition. High-efficiency performance. Restore your boiler’s startup reliability with confidence.