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Get your free estimateDoorKing Gate Motor Replacement: The Pasadena Owner’s Guide
If your DoorKing gate motor has quit, we stock replacement motors and complete operator assemblies for most DoorKing swing and slide models, with typical installed prices in Pasadena running between $650 and $1,850 depending on the model and access. Most replacements are completed in one visit, and we carry the most common DoorKing motors on the truck so we’re not sending you back to the parts counter. The usual story we hear: the gate worked fine for years, then one morning it hummed, groaned, or just sat there silent while the remote clicked uselessly.
DoorKing builds solid equipment. The 9150 slide gate operator and the 6000-series swing arms are still running all over Pasadena, from Linda Vista hillsides to the flat lots off Orange Grove. But every motor has a service life, and when the capacitor dries out or the gear train strips, the fix isn’t a squirt of WD-40. It’s the right replacement part, matched to the exact model, installed by someone who knows DoorKing’s wiring and limit-switch logic.
Key Takeaways:
- Typical DoorKing motor replacement in Pasadena: $650 – $1,850 installed, written quote before any work begins.
- We stock DoorKing motors and capacitors for same-day replacement on most common models.
- Every replacement carries the 365-Day Done Right Promise – if it fails, the return visit is free.
- Your technician’s name and photo arrive before the visit, and they’ll show a photo ID badge at the door.
Which DoorKing Models This Applies To
DoorKing has been building gate operators in Inglewood, California since 1948, so there are a lot of models still earning their keep in Pasadena. The ones we replace motors on most often are the 9150 series slide gate operators, the 6000 and 6002 swing gate arms, and the heavier 1601 and 1602 barrier gate operators used on larger estates and some commercial lots.
The compatibility gotcha with DoorKing is that motor mounting patterns and gear reducer couplings changed between series generations. A motor from a 9150 built in 2005 will not bolt into a 9150-081 built in 2019 without an adapter plate, and the control board’s current draw can be different enough to matter. That’s why we verify the model and serial number off the operator’s data plate before we order or pull a motor from stock.
On the OEM versus aftermarket question: DoorKing’s own motors carry a one-year parts warranty and are built in the USA. There are aftermarket equivalents for some older models, and on a few we’ve had good results, but on a machine that moves a 400-pound gate every day, we stock DoorKing OEM parts unless the owner asks for an alternative and understands the trade-off. Tell me what it’s doing wrong, and I’ll tell you exactly what it costs to fix it – before I touch a thing.
We’re an independent service provider, not a DoorKing corporate shop, which means we recommend what actually fits and lasts rather than what a single brand’s catalog pushes.
Styles & brands we work with





Signs Your DoorKing Gate Motor Replacement Is Failing
- Humming with no movement. The motor is getting power, but the capacitor has failed or the gear train is jammed. The capacitor is a $40 part; the motor assembly is not. We test both before quoting anything.
- Gate starts then stops mid-travel. The thermal overload in the motor is tripping, often because the gate itself has gotten harder to move. Often the motor is near the end and the failing bearing or dragging wheel was the trigger.
- Remote works intermittently. Before you blame the transmitter, know that a failing DoorKing motor can pull more current than the control board’s relay wants to see, causing dropouts. That intermittent behavior often masks a dying motor.
- Loud grinding or clicking from the operator box. That’s the output shaft gear losing teeth against the drive gear. Once the metal starts shedding, no adjustment will put it back.
- Gate moves at half speed or slower. A tired motor loses torque before it stops entirely. If your gate went from opening in 12 seconds to taking 20, the motor’s on its way out.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included
For Pasadena homeowners, an installed DoorKing gate motor replacement typically runs:
- DoorKing swing gate motor (6000/6002 series): $650 – $980 installed
- DoorKing slide gate motor (9150 series): $780 – $1,250 installed
- DoorKing barrier gate motor (1601/1602): $1,100 – $1,850 installed
- Capacitor replacement (no motor swap): $85 – $140 installed
What drives the range is the model, whether the control board also needs attention, and how accessible the operator box is. What you’ll never see is a surprise line item at the end. The price we quote before the work starts is the price on your invoice, and that’s been how we’ve operated in Pasadena since day one.
Every replacement includes full travel-limit adjustment, obstruction sensor testing, and a written guarantee under the 365-Day Done Right Promise: if anything we touched goes wrong within a year, the return visit is free.
DIY or Call Us?
DoorKing gate motors run on 115V or 220V line current, and the capacitor inside holds a charge even after power is cut. If you’re not comfortable working around live electrical components, don’t open the operator box. That capacitor can give you a serious shock.
What you can safely check as an owner: confirm the breaker hasn’t tripped, make sure the gate itself isn’t physically jammed by debris in the track or a fallen branch, and test whether the operator’s manual open/close switch does anything. If the manual switch does nothing but the breaker’s fine, the problem’s inside the box and it’s time to call.
We’ll diagnose the motor, capacitor, and control board before quoting any replacement. If it’s a repairable capacitor rather than a full motor, you’ll hear the cheaper option first. Call (626) 657-5425 and we’ll get someone out with the right test gear and the most common DoorKing parts already on the truck.
FAQs
A properly installed DoorKing motor in Pasadena typically lasts 8 to 14 years, with the hotter summers and dust from the San Gabriel foothills shaving a couple years off the top end of that range compared to coastal climates. The 9150 series motors tend to outlast the smaller swing-arm units because they run cooler in a larger housing. Annual bearing lubrication and keeping the track clear are the two things that buy you the most extra life.
Sometimes the capacitor or the start relay fails while the motor itself is still sound, and a $85 – $140 capacitor replacement in Pasadena is all it takes. If the motor’s windings have shorted or the gear output is stripped, replacement is the only reliable path. We’ll run the numbers either way and show you the cheaper fix when it exists.
For a standard DoorKing 6000 or 9150 replacement we’re usually finished in 90 minutes to two hours, including limit adjustment and safety-loop testing. If the control board also needs replacing due to damage from a faulty motor, add another 30 to 45 minutes. You’ll know the full scope and price before we start.
We keep the most common DoorKing motors and capacitors for the 9150, 6000, and 6002 series on the truck, which covers the majority of Pasadena installations. For a 1601 barrier operator or an older discontinued series, we may need one to two business days to source the exact part from our regional supplier. Either way, you’ll get a straight answer and an honest timeline when you call.
If your DoorKing motor’s whining, grinding, or silent and your gate’s stuck open or shut, call (626) 657-5425 for a free estimate. We’ll tell you who’s coming, show you their photo before they arrive, and put the price in writing before any work begins.
Written by Cole Rafferty, Owner, Warden Gate Repair Pasadena at Warden Gate Repair Pasadena, serving Pasadena and nearby areas.