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

⚠️ Installation Disclaimer:

This ignitor is intended for use only with compatible AO Smith boiler models and part numbers. Buyer is responsible for verifying compatibility before purchase. Installation should follow manufacturer guidelines and be performed by qualified personnel. Seller is not liable for damage caused by improper fitment, forced installation, or misuse.

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