Garage Door Opener Capacitors
Replacement garage door opener capacitors for LiftMaster, Chamberlain, Genie, Linear and Allstar AC openers, plus universal motor start capacitors. A bad capacitor is a common reason an opener hums but won't move the door.
Find your capacitor in the chart below the products.
Allstar 005021 Capacitor, 53-64 MFD, 250v, 1/3 hpSKU: 005021$29.95 As low as $26.36Allstar 005021 capacitor, 53–64 µF (MFD), 250 VAC rating…
LiftMaster 30B532 Motor Capacitor 53–64 MFD, 220V for 1/2 HP Openers (K030B0532-1)SKU: 30B532$42.22 As low as $38.00The genuine LiftMaster 30B532 (K030B0532-1) is the…
Genie 18004B.S 50 - 60 MFD 220V CapacitorSKU: 18004B.S$28.04 As low as $25.24Genie 18004B.S start capacitor — 50–60 µF, 220 VAC rating;…
LiftMaster 30B652 Capacitor 89uFSKU: 30B652$58.29 As low as $52.46OEM LiftMaster replacement part: 30B652 Capacitor, rated…
Genie 19988A.S Garage Door Opener Capacitor, 70 MFD for 1/2 HP AC ModelsSKU: 19988A.S$34.49 As low as $31.04The genuine Genie 19988A.S is the 70 MFD start capacitor…
LiftMaster 12A373 Capacitor BracketSKU: 12A373$7.11 As low as $6.40OEM LiftMaster 12A373 Capacitor Bracket — replacement…
Linear 219109 1/3 HP CapacitorSKU: 219109$17.31 As low as $15.58OEM replacement for Linear 219109 1/3 HP capacitor used on…
Rotom 35-270D165 270-324MFD 165VAC 11036 Motor Starting CapacitorSKU: 270F$16.95Rotom 35-270D165 270-324MFD 165VAC 11036 Round Start…
Rotom 35-189D165 189-227MFD 165VAC 11034 Motor Starting CapacitorSKU: 189F$16.95Rotom 35-189D165 189-227MFD 165VAC Round Start…
Rotom 35-540D125 540-648MFD 110/125VAC 11026 Motor Starting CapacitorSKU: 540B$16.95Rotom 35-460D125 460-552MFD 110/125VAC Round Start…
Linear 232168 3/4 HP CapacitorSKU: 232168$21.44 As low as $19.30Special OrderWhat does this mean?OEM replacement: Linear 232168 3/4 HP Capacitor for…
LiftMaster 29-1050-B2 CAPACITOR, 340-408UFSKU: 29-1050-B2$54.55 As low as $49.10Special OrderWhat does this mean?OEM LiftMaster 29-1050-B2 CAPACITOR, 340-408UF for AC…
Genie 37954R.S Capacitor 70 uF 200VSKU: 37954R.S$28.88 As low as $25.99Special OrderWhat does this mean?Genie 37954R.S replacement motor start capacitor for…
LiftMaster K29-10338 Motor Capacitor, 70 MFD, for MT, MJ, MH and MGJ OperatorsSKU: K29-10338$42.74 As low as $38.47Special OrderWhat does this mean?Genuine LiftMaster K29-10338 70 MFD motor capacitor for…
LiftMaster K29-12110 Capacitor, 20uF, 230VSKU: K29-12110$116.78 As low as $105.10Special OrderWhat does this mean?Genuine LiftMaster K29-12110 Capacitor, 20uF, 230V. …
Linear 219110 1/2 HP CapacitorSKU: 219110$18.95 As low as $17.06Back OrderedWhat does this mean?OEM Linear 219110 1/2 HP Capacitor for AC-motor garage…
Allstar 005120 Capacitor, 67-76 MFD, 250v, 1/2 hpSKU: 005120$29.95 As low as $26.36DiscontinuedWhat does this mean?Allstar 005120 Capacitor — 67–76 MFD (µF), 250 VAC rating…
Rotom 35-340D125 340-408MFD 110/125VAC Motor Starting CapacitorSKU: 340B$16.95DiscontinuedWhat does this mean?Rotom 35-340D125 340-408MFD 110/125VAC Round Start…
LiftMaster 30B363 Capacitor 53 - 64 MFDSKU: 30B363$21.99DiscontinuedWhat does this mean?OEM replacement for LiftMaster part 30B363; restores…
Allstar 005017 Capacitor, 43-53 MFD, 250vSKU: 005017$13.20 As low as $11.62DiscontinuedWhat does this mean?Allstar 005017 Capacitor, 43–53 MFD, 250V AC rating for…
Find your capacitor
| Brand | Capacitors |
|---|---|
| LiftMaster / Chamberlain | 30B532 53-64 MFD, 220 V (1/2 HP openers); 30B652 89 uF, 120 V; 12A373 capacitor bracket; commercial 29-1050-B2 and K29-10338 |
| Genie | 19988A.S 70 MFD for 1/2 HP AC models, 37954R.S 70 uF 200 V, 18004B.S 50-60 MFD 220 V |
| Linear | 219109 1/3 HP, 219110 1/2 HP, 232168 3/4 HP |
| Allstar | 005021 53-64 MFD, 250 V, 1/3 HP |
| Universal motor start | Rotom 189-227 MFD, 270-324 MFD and 540-648 MFD |
Before you replace it
- Disconnect all power, including any battery backup, before you open the cover.
- Look for oil or swelling on the old capacitor.
- Order by the part number on the old capacitor or in your opener's parts list for a direct replacement. Use the MFD (uF) range and voltage only as a backup if the part number is unknown.
- If the opener still hums with a new capacitor, the motor is the likely problem.
Not sure which one fits? Call 877-379-4947 with your opener model or the numbers on the old capacitor.
Frequently Asked Questions
How do I know if my garage door opener capacitor is bad?
A brief hum with no door movement can point to the capacitor. Disconnect all power, remove the opener cover and look for oil or swelling on the capacitor. If the opener still hums after a new capacitor, LiftMaster says the motor is damaged. Rule out broken springs and an engaged door lock first.
Which capacitor does my LiftMaster opener need?
Most LiftMaster and Chamberlain 1/2 HP AC chain and belt drive openers use the 30B532 (K030B0532-1), a 53-64 MFD, 220 V capacitor. Some models, including the 3575 and 3585, can use the 30B652 89 uF, 120 V capacitor instead. For a direct replacement, match the part number from your opener's parts list or the old capacitor; use the MFD and voltage only as a backup.
