Overview
The Auburn I-2 (CS12944) is a precision igniter spark plug designed for industrial combustion equipment. This 4.5-inch igniter provides consistent spark generation to initiate and maintain fuel combustion in burner systems, boilers, furnaces, and other combustion-based applications. Auburn igniters have been the industry standard since 1910, with proven reliability in OEM and retrofit installations across heating, HVAC, and industrial automation sectors.
Key Features
- High-durability electrode construction using Auburn-developed alloys
- Center wire options: Nickel, Chromel, Inconel, or Kanthal for diverse application requirements
- Engineered to resist sparking erosion and chemical corrosion under normal and extreme operating conditions
- Hex-head design for tool-assisted installation and removal
- 1/2" NPT-14 thread connection for standard burner mounting
- 4.5-inch overall length for compatible burner configurations
Technical Specifications
- Part Number: I-2
- Alternate Part Number: CS12944
- Overall Length: 4.5 inches
- Thread Size: 1/2" NPT-14
- Weight: 0.50 lbs per unit
- Electrode Material: Auburn proprietary alloy (center wire material varies by specification)
- Insulator Material: High-strength ceramic with excellent dielectric properties
- Connection Type: Hex-head mount with socket wrench interface
Typical Applications
The Auburn I-2 igniter is widely used in:
- Industrial boilers and furnaces requiring reliable spark ignition
- HVAC combustion systems and heating equipment
- Burner systems in commercial and industrial facilities
- Gas furnaces, oil burners, and dual-fuel combustion units
- Original equipment manufacturer (OEM) replacements and retrofit upgrades
- Industrial process equipment requiring ignition control
Compatibility & Replacements
Compatible With
- Industrial burner control systems and ignition modules
- Boiler and furnace combustion chambers with 1/2" NPT-14 threaded ports
- Heating equipment from major combustion system manufacturers
- Standard ignition circuits rated for Auburn igniter voltage and spark requirements
Replaces / Drop-In Replacement For
The Auburn I-2 (CS12944) directly replaces other Auburn I-2 configurations and equivalent 4.5-inch igniters in compatible 1/2" NPT-14 mounting positions. Verify compatibility with your system integrator or equipment manufacturer before ordering to ensure correct electrode material and center-wire specification for your application.
Works With
- Industrial ignition control modules and relay circuits
- Burner management systems (BMS) from leading manufacturers
- Standard 120V and 240V ignition circuits
- Combustion air and fuel supply systems in boiler and furnace applications






