Gas log Replacement Parts & Accessories
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Richard S.
from Northville, Michigan 48167 asked:
I need a natural gas valve for a Lennox fireplace, model MPD4540CNM.
Hello Richard, thank you for providing the model number for your Lennox fireplace, MPD4540CNM. For this model, common natural gas valve options include the SIT Millivolt Natural Gas Valve (part number H1657) or the SIT Natural Gas Train Assembly (part number H6274), which is a replacement for the original Honeywell valve (part number 24M12). To ensure we identify the exact part you need, please provide the part number from your existing valve or specify if it is a SIT or Honeywell valve. Once we have this information, we can check our inventory.
Answered by:
Tyler M.
on May 04, 2026
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