These garage door opener keyless entry systems are manufactured by Chamberlain and can be used with your LiftMaster, Chamberlain, Sears, Craftsman, Master Mechanic, Security +, Garage Master, Billion Code, MyQ™, and AssureLink™ door opener systems or any other Chamberlain made garage door opener.

This page displays Formula I Compatible Garage Door Opener keyless entry systems, Formula I Compatible keyless entry systems, Formula I Compatible 877MAX, Formula I Compatible 877LM, Formula I Compatible 377LM wireless keyless entry system, Formula I Compatible 977LM 390 MHz frequency, Formula I Compatible 387LM, Formula I Compatible 41A5232 433MHz keyless entry system, Formula I Compatible 379-10LM garage door opener fingerprint keyless entry system, Formula I Compatible batteries, and Formula I Compatible accessories that are for sale, in stock, and ready to ship.

To aid in your purchase of Formula I Compatible products, please Contact Us.


877Max

877MAX LIFTMASTER Garage Door Opener MyQ™ Wireless Keyless Entry System $41.93


Garage Door Opener Keyless Entry System

377LM

Lift Master Chamberlain Garage Door Opener Security+ Keyless Entry System 377LM NO LONGER AVAILABLE USE 877MAX

$41.93

877MAX


Garage Door Opener Security+ Wireless Keyless Entry System (315 MHz)

877LM

877MAX LIFTMASTER Garage Door Opener MyQ™ Wireless Keyless Entry System $39.85


Garage Door Opener Keyless Entry System MyQ Only


  • This applies to 877Max above:
  • Temporary password options can be set for a number of hours or a number of garage door openings
  • Backlit keypad; works with Craftsman AssureLink
  • Compatible with all LiftMaster garage door openers manufactured starting January 1993, and all 315MHZ LiftMaster and Elite gate operators
  • Compatible with yellow, purple, orange or reddish orange and green learn buttons
  • Includes battery, mounting screws and instructions
  • Size 6 1/4" long, 2 1/2" wide
  • 877MAX programming instructions
  • This applies to 377LM above:
  • Works with Chamberlain LiftMaster Sears Craftsman Security+ openers 315 MHz Frequency ONLY
  • Convenient! Press "Enter" button to close the door
  • Mounts easily to your garage door jamb with improved screw keyhole design
  • Battery operated, NO wiring required
  • Backlit keypad makes it easy to use in the dark
  • Better battery door cover - just push and slide down
  • Battery, screws and instructions included
  • Solid cover protects keyless entry from the elements
  • 377LM Programming instructions
  • This applies to 877LM above:
  • Security+2.0™ rolling code anti-theft technology
  • Temporary password can be set for a number of hours or a number of garage door openings
  • Backlit keypad makes it easy to use in the dark
  • Works with Security+2.0™ MyQ™ LiftMaster openers
  • Works with Craftsman AssureLink™ openers by Sears
  • All Security+2.0 garage door openers have a round yellow Learn button and two yellow antennas
  • Includes battery, mounting screws and instructions
  • Size 6 1/4" long, 2 1/2" wide
  • 877LM programming instructions

977LM

Chamberlain Garage Door Sceurity+ Keyless Entry System 976LM NO LONGER AVAILABLE USE 877MAX

$41.93

877MAX

41A5232

41A5232 LiftMaster Chamberlain Garage Door Opener Keyless Entry

NO LONGER AVAILABLE
The 41A5232 433MHz keyless entry system is ONLY used on garage door openers that use the 433 MHz frequency

387LM

Chamberlain Garage Door Billion Code Keyless Entry System 66LM Chamberlain Garage Door Billion Code Keyless Entry System 387LM <== NO LONGER AVAILABLE (left)
Use 387LM (right) ==>
$41.93

Model numbers:
Liftmaster: 81LM, 82LM, 83LM, 84LM, 99LM, 64LM
Chamberlain: 850CB, 853CB, 856CB
Sears/Craftsman: 139.53879, 139.53859, 139.53779, 139.53759


  • This applies to 977LM above:
  • Works with Chamberlain LiftMaster Sears Craftsman Security+ garage door openers manufactured 1997 - March 2005. 390 MHz Frequency ONLY
  • Rolling Code, Security +, orange or reddish orange learn button, 390 frequency
  • Mounts to your garage door jamb with just 2 screws
  • Battery operated, NO wiring required
  • Lighted keyboard and flip-up cover
  • Battery, screws and instructions included
  • Older part number 976LM
  • 977LM programming instructions
  • This applies to 387LM above:
  • LiftMaster, Master Mechanic, Access Master, and Sears Craftsman garage door openers 390 Frequency
  • The 387LM will ONLY work with openers manufactured 1990 - 1997 that have a yellow, white, gray, or green learn button
  • Will operate one garage door opener
  • Battery operated, NO wiring required
  • Lighted keyboard and flip-up cover
  • Battery, screws and instructions included
  • 66LM programming instructions
  • 387LM programming instructions

379-10LM

Garage Door Opener Fingerprint Keyless Entry System NO LONGER AVAILABLE

Garage Door Opener Fingerprint Keyless Entry System

  • This applies to 379-10LM left:
  • Compatible with all LiftMaster, Sears, Craftsman and Chamberlain brand openers operating in 315MHz. with purple learn button on receiver
  • Fingerprint sensor technology makes access to your garage quick, safe and secure
  • Recognizes up to ten unique fingerprints. Only the registered users can gain entry to your garage, guaranteeing secure access
  • Easy to use. Simply open the protective cover to turn the device on, swipe your finger and your garage door will open
  • No pass codes or pin number to remember. Access cannot be copied or passed onto others
  • Easy to install - two screws, no wires
  • Wireless, battery-operated. Powered by four AAA batteries (included)
  • Weather proof slide-up protective cover
  • No need to replace existing keyless entry. Works in conjunction with LiftMaster 377LM keyless entry, still allowing temporary access via four-digit code
  • Compatible with 315MHz ONLY. Purple learn button
  • Great for families and senior citizens


12Volt

Garage Door Opener Battery 12 volt $3.75


12 Volt Battery for keyless entry model 66LM

9Volt

Liftmaster Garage Door Opener Battery Model 25LM $3.75



9 Volt




Contact Us


We invite your inquiries regarding your garage door opener.

  • For technical and compatibility issues, we must know the brand and model of your opener to help
  • Be sure to include your complete and accurate email address with your inquiry
Name A value is required.
Email Address (accurate) A value is required.Invalid format.
Phone No.
Brand of Opener
Model Number of Opener
(located on motor head behind light bulb cover)
Model Number of Remote Control
(located on back of remote)
Model/Part Number of Current Receiver
(located on Receiver)
Enter Security Code

Comments:


garage-door-opener-parts.com - Owned by 1st Garage Door Openers, Inc., an independent family owned and operated business serving the Garage Door and Garage Door Opener Industry since 1981. Providing excellent customer service and assistance for over 25 years. We are a discount reseller of garage door opener remotes, repair parts, keyless entry and gate operator controls for your home, business, or gated community. We carry parts for the following garage door openers: Lift-Master, Chamberlain, Sears Craftsman, Access Master, Sears Best Craftsman, Sears Automatic Door Opener, Master Mechanic, Security +, Formula 1, Garage Master, Billion Code, LiftMaster Professional, Estate Series, Premium Series, Contractor Series, Power Driver, Whisper Drive, Genie, Alliance, Norelco, Blue-Max, Lift-A-Door, Pro Max, Hercules, Stealth, Excelerator, Intellicode, Genie Pro, OverDrive, Python 2, Signature, Phantom, Legacy, Medallion, CodeDodger, Overhead Door, Genie Shop Vac, Stanley, Vemco, Quiet Glide, SecureCode, Lightmaker, Innovative Products, Whistler, U-Install, Popular Mechanics, Allister, Allstar, Pulsar, MVP, Challenger, GTO, All-O-Matic, Electrolift, Westinghouse, AM/11, Linear, Access Pro, Moore-O-Matic, MegaCode, Delta 3, MultiCode, Heddolf, ESP Micom, Intercontinental Dynamics, Crusader, Wayne Dalton, iDrive, Door Master, Quantum, Classic Drive, Tec Key, Martec, Monarch, Telectron and other garage door openers, and gate operators. Brand names of Garage Door openers are registered trade names of the respective entities and are only used for reference.