LiftMaster 373LM 3-Pack 3-Button Remote Control
The LiftMaster 373LM 3-pack is built for customers who need several matching 3-button remote controls for the same compatible radio system. Instead of mixing old remotes, replacement remotes and different button layouts, this pack keeps the remote style consistent across multiple vehicles, users or access points. That matters on rental properties, small commercial sites, gated entries, service fleets and homes with several drivers because everyone receives the same model and the same programming process.
The 373LM is the three-button version of the LiftMaster Security+ 315 MHz purple-learn-button remote family. It is useful when one visor remote needs to control more than one compatible garage door opener, gate operator, commercial door operator or receiver channel. It is commonly paired with the same purple learn button systems that use 371LM-style one-button remotes, but the extra buttons give customers room for multiple access points. It should not be confused with 893LM, 893MAX or other yellow learn button / MAX-family remotes.
This listing is for a 3-pack. The pack quantity does not change the radio compatibility of the base remote; it only changes the number of remotes supplied. Use the model number, learn button color, receiver model and radio technology to confirm fitment. Similar-looking LiftMaster remotes are not automatically interchangeable because Security+ 315 MHz, Security+ 2.0, MAX/universal and commercial Encrypted DIP products use different programming rules.
Compatible With
Use the list below as a fitment guide. Compatibility depends on the receiver, learn button color, code type and operator generation. If the old remote is missing, verify the opener or receiver model before ordering.
- LiftMaster garage door openers, gate operators and commercial door operators with a purple learn button and Security+ 315 MHz radio technology.
- Chamberlain, Sears Craftsman, Raynor, AccessMaster, Master Mechanic and other Chamberlain Group-built openers using the purple learn button / 315 MHz Security+ receiver family.
- Commonly associated LiftMaster residential opener models include select 1345, 1355, 1356, 3220, 3240, 3255, 3265, 3270, 3280, 3500, 3585, 3595, 3800 and 3850 units when the receiver has a purple learn button.
- Multiple-door installations where one 3-button visor remote is used to control up to three compatible openers, gates or commercial door operators.
- Replacement applications where the original remote is a 373LM, 373LMC, 373P, 371LM, 370LM, 372LM or another compatible 315 MHz purple learn button remote.
- Select commercial door or gate receivers that are set up for standard Security+ 315 MHz remote programming.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | 3-button visor remote control multi-pack |
| Base Part Number | 373LM |
| Pack Quantity | 3 remotes |
| Button Count | 3 buttons |
| Primary Application | Up to three compatible opener, gate, commercial door or receiver channel controls per remote |
| Radio / Code Technology | Security+ 315 MHz |
| Learn Button Color | Purple |
| Compatible Operator Type | Select LiftMaster, Chamberlain, Sears Craftsman, Raynor and related purple learn button systems |
| Common Related Remote Family | 370LM, 371LM, 372LM, 373LM, 373LMC, 373P and related 315 MHz Security+ controls |
| Programming Note | Program each button separately to each compatible device |
| Safety Note | Do not use remote control changes to work around unsafe operator behavior |
Also Known As / Related Part Numbers
These numbers and names are commonly associated with this remote family, replacement searches or related programming references. Related items may not be interchangeable unless the receiver technology matches.
- 373LM
- G373LM
- 373LMC
- 373P
- HBW1573 FCC family reference
- Related 315 MHz purple learn button remotes: 371LM, 371LMC, 370LM, 372LM and 374LM
- Related keypad family: 377LM for compatible purple learn button systems
- Raynor/private-label references are commonly associated with 373RGD / 371RGD style 315 MHz Security+ controls
- Not the same as 893LM, 893MAX, 890MAX, 971LM or 973LM remotes
Technician Note
For remote controls, the safest way to avoid a wrong order is to compare three things: the printed remote model number, the opener or receiver learn button color, and the radio/code family. A 373LM remote may physically resemble other LiftMaster transmitters, but button count and housing style do not confirm compatibility. When programming multiple remotes from the same pack, program and test one transmitter first, then add the remaining transmitters one at a time.
Before Ordering Checklist
- Confirm the exact remote model number needed for the opener or receiver.
- Check the learn button color or receiver model before assuming compatibility.
- Confirm whether the application needs one-button control, three-button control or open/close/stop control.
- For gated or commercial sites, confirm the receiver capacity before adding several new remotes.
- Replace weak remote batteries and inspect the antenna/receiver setup if range is poor before blaming the remote.
- Do not bypass photo eyes, monitored entrapment protection or other safety devices to make a remote work.
Professional Advisory
Programming a handheld remote is usually a low-voltage accessory task, but commercial doors and automated gates can become dangerous if the operator has missing safety devices, damaged wiring, failed limits or unexpected movement. If the door or gate moves by itself, reverses unpredictably, will not stop, or has bypassed safety equipment, have the system inspected by a qualified gate or garage door technician before adding remotes.
Product Questions & Answers
What systems are compatible with the 373LM?
The 373LM is for Security+ 315 MHz systems with a purple learn button, including select LiftMaster, Chamberlain, Sears Craftsman, Raynor, AccessMaster and related Chamberlain-built operators.
How many devices can one 373LM remote control?
One 373LM remote can control up to three compatible openers, gates or commercial door operator receiver channels when each button is programmed separately.
Can the 373LM replace a 371LM?
It can often be used on the same purple learn button / 315 MHz system, but it is a three-button remote instead of a one-button remote. Program the button layout carefully.
Is the 373LM compatible with yellow learn button Security+ 2.0 openers?
No. Yellow learn button Security+ 2.0 systems normally use 891LM/893LM style remotes or a compatible universal/MAX-family remote, not the 373LM.
Is this 3-pack good for multiple doors?
Yes, if the site uses compatible purple learn button receivers. A 3-pack supplies multiple three-button remotes, and each remote can be programmed to up to three compatible devices.
