OEM Lennox Burner Plate (R20094003) — 87H70

The genuine OEM Lennox 87H70 burner plate (also referenced as part R20094003) is the mounting bracket that holds your furnace's burners in precise position and correct spacing across the manifold. Proper burner alignment is essential for clean, even combustion and correct flame travel into each heat exchanger cell, making this plate a foundational component of the burner assembly in compatible Lennox gas furnaces.

Common failure symptoms: Over years of thermal cycling, a burner plate can warp, rust, or crack, allowing burners to shift out of alignment. This shows up as uneven or lifting flames, delayed ignition, rollout or flame-sensor faults, sooting, or unusual combustion noise. A degraded plate can also let burners vibrate loose, causing intermittent no-heat conditions.

Why OEM matters: The 87H70 is stamped to exact factory tolerances so every burner seats at the manufacturer-specified angle and distance from the heat exchanger inlets. A genuine Lennox plate ensures burners fire directly into the exchanger cells the way the appliance was certified, preserving combustion efficiency and safety margins. Aftermarket substitutes frequently have imprecise burner spacing that promotes flame impingement, sooting, and premature heat-exchanger stress. Choose the OEM 87H70 for a guaranteed, worry-free fit.