LiftMaster 041A5456B RF Module 433MHz
The LiftMaster 041A5456B is a 433MHz RF receiver module used to restore or replace the radio receiver section on select LiftMaster gate operator systems. This plug-in module receives compatible 433MHz transmitter signals and passes them to the operator control board. It is important to match the frequency and board connector because LiftMaster has used multiple radio technologies over the years, including 390MHz, 315MHz, 433MHz, Security+ 2.0, Passport, myQ, and tri-band systems. A failed RF module can cause reduced remote range, intermittent remote operation, or complete loss of wireless control while the hardwired controls still operate. This module should be ordered only when the existing system uses the 041A5456B / 41A5456B 433MHz receiver-card format.
Compatible With
Common Compatible Models and Applications
- select LiftMaster gate operators using the 041A5456B 433MHz plug-in RF module
- compatible 433MHz LiftMaster gate control board applications
- control board references including 801702, 8002E, CB11, CB22, CB124, CB24, and CB202 when confirmed by system documentation
- 433MHz remote systems using compatible 66/21 and 66/22B style transmitter references where applicable
Important Compatibility Notes
- Confirm system frequency is 433MHz.
- Verify control board connector type before ordering.
- Do not use this module as a replacement for 390MHz, 315MHz, Security+ 2.0, Passport, myQ, or tri-band receiver products.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | RF receiver module |
| Part Number | 041A5456B |
| Frequency | 433MHz |
| Application | Wireless remote-control reception |
| Compatible Operator Type | Select LiftMaster gate operator control boards |
| Also Known As | 41A5456B, 801221, 66/17 |
| Notes | Not interchangeable with 390MHz, 315MHz, Security+ 2.0, Passport, or myQ receivers |
Also Known As / Related Part Numbers
- 041A5456B
- 41A5456B
- LM-041A5456B
- 041A5456-B
- 801221
- 66/17
- 433MHz RF Module
- RF Module 433MHz
Technician Note
This is a replacement part that should be matched to the original LiftMaster part number, operator model, and factory parts diagram. If the operator has damage from impact, gate drag, water intrusion, missing safety devices, or electrical failure, inspect the complete system instead of replacing one part by appearance only.
Before Ordering
- Confirm the exact manufacturer part number from the original part or manual.
- Verify the operator model, production generation, and parts diagram.
- Compare dimensions, mounting points, connector style, voltage, frequency, or hardware style when relevant.
- Check related worn parts so the new replacement is not damaged by the same issue.
- Use a qualified gate or garage door technician for high-voltage, spring/counterweight, motor, or unsafe movement concerns.
Professional Advisory
Gate and barrier operators are moving systems with pinch points, stored force, and electrical components. Do not bypass required safety devices or continue operating equipment that moves unpredictably. When the repair involves electrical diagnosis, counterweight balance, operator alignment, or a damaged gate structure, have the system inspected by a qualified technician.
Product Questions and Answers
What frequency does the 041A5456B use?
The 041A5456B is a 433MHz RF module.
What symptoms can point to a bad RF module?
Reduced remote range, intermittent remote response, or no wireless response while wired controls still work can point to receiver or RF module trouble.
Can this replace a 390MHz or Security+ 2.0 receiver?
No. It should only be used in compatible 433MHz systems with the correct board connector.
What related part numbers should I compare?
Common related references include 41A5456B, 801221, and 66/17.
Will remotes need to be reprogrammed?
In many cases, compatible transmitters may need to be relearned or tested after receiver module replacement.
