OEM Lennox Oil Burner Arm — 13U26
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The Lennox 13U26 oil burner arm (factory part number 100195-05) is a genuine OEM component for Lennox oil-fired furnaces. The burner arm carries fuel to the combustion chamber and positions the nozzle, electrodes, and ignition assembly for a clean, stable flame. It is engineered to the exact tolerances of your Lennox oil burner, ensuring correct fuel spray pattern and reliable ignition every heating cycle.
Common failure symptoms: When the burner arm or its mounted components degrade, you may experience delayed or failed ignition, sooty or smoky combustion, oil odors, rumbling on start-up, or repeated lockouts on the primary control. Corrosion, carbon buildup, or a warped arm can all disrupt the precise nozzle-to-electrode geometry that clean combustion depends on.
Why OEM matters: Oil combustion is unforgiving of imprecise parts. A generic aftermarket arm can misalign the nozzle and electrodes, leading to poor efficiency, excessive soot, and premature wear on your heat exchanger. The OEM Lennox 13U26 guarantees the fit, spray angle, and durability your equipment was designed around — protecting efficiency and safety. In stock and ready to ship same day.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days