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Linear Gate Motor Replacement: The West Covina Owner’s Guide
A Linear swing-gate motor replacement in West Covina typically runs between $700 and $1,200 installed for a compatible single-arm operator, with most jobs completed the same day we arrive. That price includes the motor, arm bracket, limit setup, and the full photo record we leave behind. Most homeowners discover the failure the same way: the gate hums but doesn’t move, or it starts opening a few inches and reverses itself for no apparent reason. If your Linear operator is over eight years old and showing these symptoms, the motor itself is usually done, not the control board or the remote.
We’re an independent service provider. We are not affiliated with Linear, but we stock Linear-compatible motors and OEM replacement parts for the models below, and we install them daily across West Covina driveways from the hills near Galster Wilderness Park down to the flat lots along the 10.
Which Linear Models This Applies To
The motor replacement we’re describing fits Linear’s swing-arm operator family: the LRA series, the older APeX and Pro Access lines, and the common workhorses like the LRA50 and LRA75. The difference between models usually comes down to arm travel and duty cycle, not the motor housing itself. A Linear LRA50 for a lightweight residential gate and an LRA75 for a longer, heavier leaf share the same internal motor mount pattern, which means identifying your model correctly is the entire job.
Here’s the gotcha we run into in West Covina: the metal data plate on the motor body fades fast in direct sun. If your label is unreadable, the reliable identifiers are the arm style and the bolt spacing on the post bracket. Linear uses a four-hole base plate on the LRA series that measures 6.75 inches across; older APeX units use a three-hole triangular pattern. Measure the plate before you order anything. As for OEM versus aftermarket: Linear’s OEM motors carry a two-year factory warranty and are worth the premium if you plan to stay in the house. A quality aftermarket equivalent often comes in $80 to $150 cheaper and uses the same Hall-effect sensor design, but the limit switch cam tends to wear faster in heat. In West Covina’s summer temperatures, a dark metal housing on a west-facing gate can hit surface temperatures that accelerate that wear.
Signs Your Linear Gate Motor Replacement Is Failing

- The gate hums but doesn’t move. The motor is getting power but the armature can’t turn, usually because the gear train has stripped. Linear’s nylon reduction gear is designed to be the sacrificial part, but if the gate keep binding against it, the motor burns out next.
- The gate opens a few inches, then reverses. This is the obstruction sensor in the motor doing its job, but on a failing Linear motor the current draw rises even with no obstruction, so the board reads a false hit. A technician can measure the amp draw and confirm the motor, not the sensor, is to blame.
- The gate moves slower than it did six months ago. Motor brushes wear down. Linear’s brushed DC motors lose speed gradually, not suddenly. Most owners don’t notice until the gate takes 20 seconds instead of 12 to open.
- You smell burnt electrical after a cycle. The winding insulation is failing. If you smell this, stop operating the gate and kill power at the breaker. A failing motor winding can damage the control board downstream, and that turns a $900 motor replacement into a $1,400 job.
- The gate opens but won’t close, or closes but won’t open. One direction of travel works fine, the other labors or stalls. This is often a failing limit switch inside the Linear motor housing, but we replace the motor assembly when the limit cam itself is worn because the labor to open the housing, replace the switch, and recalibrate travel is roughly the same as a full motor swap.
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AfterReplacement Cost & What’s Included
In West Covina, expect to pay between $700 and $1,200 for a Linear-compatible swing-gate motor replacement installed. The spread comes down to three things: the arm length your gate needs, the condition of the post bracket and mounting hardware, and whether you choose an OEM Linear motor or a quality equivalent.
Here’s the line-item reality:
- Motor assembly: $380-$650 depending on model and OEM vs. aftermarket
- Arm bracket and mounting hardware: $40-$90 if the existing bracket is intact, $120-$180 if we’re replacing a bent or rusted one
- Labor, limit setup, and travel calibration: $220-$380
The price is written and handed to you before we start. No call for a quote, no surprise invoice at the end. That’s Haven Standard Clause 1, and we’ve worked that way on every gate since Adrian Vance started this company in 2014. The replacement motor carries its factory warranty, and the labor is covered by our 365-Day Done Right Promise: if it’s not right, we make it right, no argument, no fee.
DIY or Call Us?

You can safely check a few things on a Linear swing-gate motor without touching a tool: confirm the breaker is on, check that the manual release lever on the motor is fully seated, and look for obvious physical damage to the arm or bracket. If the gate is off its hinges or the post is visibly leaning, the motor was never the problem.
What you shouldn’t do is open the motor housing. A Linear operator runs on 120V AC input with a DC converter inside, and the capacitor in these units holds a charge after power is cut. Beyond the electrical risk, the limit switch calibration and gear lash adjustment aren’t things you want to get 80% right and then fight with for a weekend. We’ve been called to West Covina homes where a well-intentioned DIY motor swap ended with a gate that closed on a car because the obstruction sensitivity was never recalibrated. If you’re anywhere near that point, call (562) 368-4485 and we’ll have a named technician to your driveway with the right motor on the truck.
How long does a Linear gate motor last in West Covina?
A Linear swing-gate motor in West Covina lasts 8 to 12 years on average, with hillside properties near Galster Wilderness Park trending toward the shorter end because the gate has to work harder against gravity on a slope. The deciding factors are daily cycle count, sun exposure on the motor housing, and whether the gate has been kept properly aligned. A gate that’s even slightly out of plumb puts lateral load on the motor, and that takes years off its life.
Can the motor be repaired instead of replaced?

Sometimes, but rarely enough to be worth it at residential labor rates. The two repairable failures are worn motor brushes and a failed limiter microswitch, both of which require opening the sealed housing, desoldering, and recalibrating travel. The parts are cheap; the labor isn’t. We’ll tell you honestly if a brush replacement saves you money, and if it doesn’t, the quote will reflect that in writing before any work starts. Call (562) 368-4485 and we’ll give you the real number.
How long does the motor swap take?
A Linear motor replacement on an existing bracket takes 90 minutes to two hours, including travel calibration and obstruction-sensitivity setup. If the post bracket needs to be replaced, add another 45 minutes. Most West Covina jobs are done same-day, and you get a photo log of every adjustment before we leave.
Do you stock Linear motors on the truck?

Yes. Our trucks carry Linear-compatible motors for the LRA and APeX series, along with replacements for LiftMaster, Mighty Mule, and Ghost Controls operators, so we’re not making a second trip across West Covina to pick up a part. If your gate uses a model we don’t have on hand, we’ll tell you before we dispatch, not after we show up.
Get Your Linear Gate Motor Replaced in West Covina
Name what you found. Name what it costs. Name what you left behind. That’s how Adrian Vance has run every job since 2014, and it’s why our written price comes before the work, not after. If your Linear gate motor is failing, call (562) 368-4485. A live person answers, and we’ll get your gate cycling cleanly with a documented record of everything we installed.
Written by Adrian Vance, Owner, Vance Gate Repair West Covina at Vance Gate Repair West Covina, serving West Covina and nearby areas.




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