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LiftMaster 8900W LT-Duty Jackshaft Smart Garage Door Opener wifi LJ8900W, 3900

Usually ships within 24hrs

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Black Friday 2022 and Cyber Monday promotion features Free Standard Shipping to most locations. Brand new OEM Liftmaster units are in stock and ready to ship!

The 8900W LJ8900W Liftmaster smart wifi garage door opener replaces the 3900 Jackshaft side mounted unit.

The LJ8900W is a smart garage door opener. LiftMaster's first wall-mounted commercial door operator with built-in Wi-Fi®. Intended for applications using smaller, lighter sectional commercial doors requiring 25 cycles or less per day, the LJ8900W is ideal for dock doors, small warehouses, small businesses, and outbuildings. Wi-Fi® capability with remote access puts YOU in control of daily operations at your facility. MyQ® Technology enables monitoring and control of the facility operators through a mobile app. Built-in Wi-Fi® for simple operator internet connection. Real-time alerts indicate door status via email or push notifications. Open or close the door from anywhere with just a tap of your phone. Enhanced protection features keep your door secure and grant access only to you.

The rugged LJ8900W features a commercial-grade design with steel chassis and rigid plastic cover. Internal chain and sprocket drive mechanism. Auto-force adjustment for the changing weather and environmental conditions. Electronic limits for easy setup. DC Wi-Fi® Logic Board with a built-in surge suppressor. Reliable, heavy-duty 12V DC motor with automatic thermal protection and permanent lubrication. Smooth start/stop reduces wear for lasting performance. A speed of 8.5" per second for the door to move upward and 7.6" per second for the door to move downward. Security+ 2.0® safeguards facility access with rolling code technology, opening for registered devices ONLY. The Protector System® automatically reverses the door if an entrapment protection device detects an obstruction. Battery backup and automatic door lock capable (sold separately). UL listed. 2-year warranty.

Liftmaster models 8500, 8500W and 8900W are NOT compatible with low headroom applications. Please contact us prior to purchase.

MAX. DOOR AREA: 180-ft. total
HEADROOM CLEARANCE REQUIRED: 3-inches from the center of the torsion bar
MAX. DOOR WEIGHT: 850 lbs.

Commercial Door Operator (LJ8900W)
Cable Tension Monitor (041A6104)
Push-Button Control Station (APBS1)
The Protector System® Safety Reversing Sensors


891LM single button remote

893MAX Three Button visor remote

827LM MyQ® Remote Led Light operates automatically with the operator and works with the MyQ® App.

485LM Battery Backup Capable powers up the operator when the power’s out.
841LM Automatic Door Lock deadbolts the door automatically every time it closes.
480LMB Alternate Mounting Kit designed for doors with low headroom (less than 3 in.) or obstructions near the end of the torsion bar.
LC-36A Light Curtain provides 36 inches of increased zone coverage for additional protection; indoor use; requires a separate power source (100maps); max. range: 33 ft.
KPW5 / KPW250 Wireless Keypads NEMA 4X (water protection requirements) sealed electronics for reliable outdoor use.

 LJ8900W Liftmaster installation guide (click)

Write Review

  1. What I expected 5 Star Review

    Posted by on Oct 19th 2021

    I have an older 3600 series opener. I decided to get two more openers of the same style and got the 8500s. They were easy to install, run quiet, and if like the older models should be very reliable. Open door was very helpful and would recommend both the company and the opener.

  2. LJ8900 is great opener, simple to install, strong, and has nice features. 5 Star Review

    Posted by on May 14th 2020

    I already had two 8500's for my new shop and then I saw the 8900 was the same but a little more heavy duty so I bought one on my old shop door, (insulated 18'x10'). The 8900 operated this door with ease. This opener has everything you need plus nice features and options for upgrades. Compared to my old operator, the 8900 is quicker and way smoother. I ended up buying a second 8900 for another large shop door so I am sold on these operators.
    I did connect the 8900 to my wifi and am using the app with no problems. I have remotes in my vehicles but now I can easily open this door from my phone when I'm coming in with a tractor or mower which will be great during the winter. Open Door Discount Remotes have also been fantastic. Their prices are good and the shipping has been very fast.

  3. LiftMaster 8900W LT-Duty Jackshaft LJ8900W 5 Star Review

    Posted by on Oct 7th 2019

    Easy install, took less than an hour. If I had an outlet nearby it would have been under half an hour.

    Works Great!

    Only issues I have is it's a little on the slow side. I'd like it to open/close quicker to retain as much heat as possible in my shop in the winter.

  4. Fantastic 5 Star Review

    Posted by on Dec 27th 2018

    I already had one of these openers and put it on one door. My doors are a little larger than specs suggested use for. However, I only open my doors once or twice a day on occasion. It worked perfect so I ordered one for the second door.