OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Lennox 88M93 burner box top (factory reference LB-95151) is the sheet-metal cover that seals the top of your furnace burner box. It contains combustion, directs the flame path into the heat exchanger, and protects surrounding components from radiant heat. Correct placement of this cover is essential for safe, efficient operation of your Lennox gas furnace.
Common failure symptoms: A warped, corroded, or missing burner box top can lead to inconsistent flame behavior, flame rollout, burner noise, soot buildup, or a furnace that short-cycles on its rollout limit switch. Rust, cracked mounting tabs, or heat discoloration are signs the cover should be replaced.
Why OEM matters: The Lennox 88M93 is stamped to exact factory tolerances so it seats flush and maintains the sealed combustion geometry your furnace was engineered around. Aftermarket substitutes often fit poorly, leaving gaps that compromise safety and efficiency. Choosing the OEM part ensures proper fit, rated performance, and lasting durability for your Lennox equipment.