OEM Lennox Gas Valve — 38J77
OEM Guaranteed
Same-Day Ship
30-Day Returns
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The genuine OEM Lennox 38J77 gas valve controls the flow of fuel to your Lennox furnace burners. Working with the control board and igniter, it opens on a call for heat to deliver a metered, regulated gas supply and closes instantly when the cycle ends or a safety is tripped. As both a metering and safety component, a correctly functioning gas valve is essential to clean, efficient, and safe combustion.
Common failure symptoms include:
- Igniter glows but the burners never light
- No heat despite a proper ignition sequence
- Weak, uneven, or delayed burner flame
- Gas odor or a valve that fails to fully close
On a gas-carrying safety device, OEM is non-negotiable. The 38J77 is built and rated to Lennox specifications for pressure regulation, inlet/outlet fittings, and electrical control, and it ships pre-set to the correct manifold pressure range. This factory replacement ensures a safe, leak-free fit and reliable, code-compliant fuel delivery for your Lennox equipment.
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