LGO Light-Duty Gear Reduced Operator Parts
LiftMaster LGO Replacement Parts — Light-Duty Gear Reduced Operator
Genuine replacement parts for the LiftMaster LGO light-duty gear-reduced commercial door operator.
The LGO is largely out of support. LiftMaster has discontinued both logic boards, the output shaft, the disconnect kit and the limit, reduction and output shaft kits, with no direct replacements. The mechanical drive parts below are still available and will keep a working unit running, but if the logic board has failed there is currently no board to buy. Call (866) 965-5599 before ordering anything else — we would rather tell you the unit is beyond economical repair than sell you parts for a machine that cannot be finished.
Available Parts
| Ref | Part # | Description |
|---|---|---|
| 5 | 30B432 | Motor Capacitor (K29-10338) |
| 8 | 41B4245 | Power Cord, 6 ft (041B4245-1) |
| 9 | K75-13705 | Standoff, Logic Interface |
| 10 | K23-10041 | Limit Switch |
| 11 | 12-10715 | Flange Bearing, 1" ID (K12-10715) |
| 14 | 11A34 | Bearing |
| 15 | 41D4509 | Motor (041D4509) |
| 17 | K75-11377 | Sprocket Assembly |
| 18 | 19-8A-12 | Sash Chain, 12 ft (71-199010) |
| 19 | 10-11023 | Bevel Gear Yoke (K10-11023) |
| 21 | 41A2817 | Drive and Worm Gear (041A2817) |
| 22 | 15-48B12CXX | Sprocket, 1/2" ID, 12 tooth |
| K1 | K75-16426 | RPM Sensor Kit — use the 041C4398A |
Discontinued — Identification Only
These parts are no longer supplied by LiftMaster and have no direct replacement.
| Ref | Part # | Description |
|---|---|---|
| 1 | 80-487-7 | Rivet |
| 2 | 80-15636 | Hinge |
| 4 | K001A5251-4 | Logic Board, 315MHz |
| 4 | K79-16088 | Logic Board, 390MHz |
| 6 | 80-15649 | Standoff, End Panel |
| 7 | K79-15491 | Logic 3 Button Interface |
| 12 | K15-48B32LXX | Sprocket, 1" ID, 32 tooth |
| 13 | 11-15646 | Output Shaft, 1" |
| 16 | 10-11394 | Release Lever |
| 20 | 80-11416 | Disconnect Key, 1/4 x 1/4 x 7/8" |
| K2 | K72-16422 | Output Shaft Kit |
| K3 | K72-16421 | Limit Shaft Kit |
| K4 | K74-16420 | Limit Switch Kit |
| K5 | K75-16423 | Disconnect Kit |
| K6 | K72-16425 | Reduction Shaft Kit |
Replacing the Operator
If the LGO is beyond repair, the MGJ5011 medium-duty jackshaft operator is the current equivalent. Parts for it are on the MGJ electrical box page and the MGJ jackshaft parts page.
Safety Sensors & Options
| Part # | Description |
|---|---|
| CPICARD | CPI interface box |
| CPS-U | Commercial photo eye |
| CPSUN4G | Monitored through-beam photo eyes |
| CPS | Safety eye sensors — mechanical operators |
| CPS-UN4 | Safety eye sensors — commercial doors |
| K77-16011 | Mounting hardware, CPS N4 |
| 65-5302 | Pneumatic sensing edge, 22 ft, with take-up reel |
| LC-36A | Safety eye sensors (no longer available) |