The LiftMaster K108D0079M light lens is a replacement lens cover used on select LiftMaster and Chamberlain residential garage door opener motor heads. It replaces a damaged or missing plastic cover over the opener light area and helps restore the finished look of the operator.
This lens family appears under several older and alternate numbers, so it is a good part to match by both the opener model and the molded number from the old cover when available.
K108D0079M is commonly associated with select LiftMaster and Chamberlain AC chain drive, AC belt drive, Wi-Fi, and screw drive models, including 8155, 8155W, 81550, 8164W, 81640, 8165, 8165W, 81650, 8365, 8365W, 83650, 3265, 3280, and 3240 when the parts diagram calls for this lens.
| Feature / Specification | Details |
|---|---|
| Manufacturer | LiftMaster / Chamberlain |
| Product Type | Light lens replacement cover |
| Part Number | K108D0079M |
| Application | Select residential opener light compartments |
| Compatible Operator Type | Select AC chain drive, AC belt drive, Wi-Fi, and screw drive units |
| Also Known As | 108D79, 108D68, 108D0079M, 108D0079 |
| Included | Light lens cover only |
| Notes | Not interchangeable with every LiftMaster light lens; match the exact lens family |
Do not assume a newer Wi-Fi opener and an older AC opener use the same cover just because the lens size looks similar. The tab locations and cover curve are the key fitment points.
Replacing the lens is a basic parts replacement. If the light area shows heat damage, melted plastic, or exposed conductors, stop using the opener and have it checked by a qualified garage door technician.
K108D0079M is commonly listed with 108D79, 108D68, 108D0079M, 108D0079, 108D68-1, and 062533. These numbers help customers find the current lens family when the old cover has a molded number.
This lens is commonly associated with select LiftMaster and Chamberlain AC chain, AC belt, Wi-Fi, and some screw drive residential opener models, including model families such as 8155, 8165, 81650, 81550, 8365, 83650, 3265, 3280, and 3240 when specified by the parts diagram.
No. K108D0079M and K108D0078 are separate lens families even though both are light lens covers. Match the exact part number or old lens markings before substituting one for the other.
The lens itself does not control the light. It covers the light area. If the light does not turn on, the bulb, socket, wiring, control board, or settings may need to be checked separately.
Yes. Many customers replace the lens when it becomes yellowed or brittle even if the opener still works. Just confirm that the replacement lens matches the operator cover and mounting points.