Liftmaster K41-0231-000, ANTENNA, CAPAC

Liftmaster K41-0231-000, ANTENNA, CAPAC

The LiftMaster K41-0231-000 antenna is a replacement antenna service part for the CAPAC Smart Access Hub. The antenna supports the access hub communication path and helps maintain reliable wireless signal performance between the access-control hardware and its connected functions. It is commonly needed when the original antenna has been broken, removed, damaged during service, affected by weather, or replaced during enclosure repair.

This part should be selected by the CAPAC service parts list, not by appearance alone. CAPAC also has separate accessories and service parts, including external cellular antenna options and power supply parts that are not the same as K41-0231-000. If the system has poor communication, first check the installation location, signal conditions, wiring, power, account status, and visible antenna damage. Replacing the antenna may not solve a network, cellular, or configuration issue.

Compatible With

Common Compatible Models

• LiftMaster CAPAC Smart Access Hub
• CAPAC access-control systems where K41-0231-000 is listed as the antenna replacement kit

Additional Model Families to Verify

• CAPXM, CAPXLV, CAPXLV2, CAP2D, HDSL24UL, and HDSW24UL only when the parts diagram specifically calls out this part number

Important Compatibility Notes

• This is the CAPAC antenna replacement kit, not the CELLXKT external cellular antenna kit
• Do not use this as a universal gate operator antenna without parts-diagram confirmation

Features & Specifications

Also Known As / Related Part Numbers

• K41-0231-000
• 41-0231-000
• K410231000
• 41-0231
• Antenna, CAPAC
• CAPAC antenna replacement kit
• Related CAPAC accessory: CELLXKT external cellular antenna kit - not the same part

Technician Note

Poor CAPAC communication does not always mean the antenna is bad. Check antenna condition, mounting, signal environment, account or service status, power, and control-board condition before ordering.

Before Ordering

• Confirm the system is a LiftMaster CAPAC Smart Access Hub.
• Verify K41-0231-000 is listed on the CAPAC service parts diagram.
• Do not confuse this part with CELLXKT or other external antenna kits.
• Inspect the original antenna connection and enclosure condition.
• Check for broader signal, service, or account issues before replacing hardware.

Professional Advisory

Access-control communication problems may involve antenna placement, cellular or network service, account setup, power, and board condition. For uncertain CAPAC communication issues, use a qualified access-control technician.

Product Questions and Answers

What is the K41-0231-000 antenna used for?

It is a replacement antenna service part for the LiftMaster CAPAC Smart Access Hub.

Is K41-0231-000 the same as CELLXKT?

No. CELLXKT is a related external cellular antenna kit reference, while K41-0231-000 is the CAPAC antenna replacement kit.

Can this antenna be used on CAPXM or CAPXLV panels?

Only if the specific service parts diagram calls it out. It should not be treated as a universal Smart Access antenna.

Will this fix poor signal on a CAPAC system?

It can help when the original antenna is damaged or missing, but poor signal can also come from mounting location, network or cellular conditions, account setup, or board issues.

What should I verify before ordering?

Confirm the CAPAC model, original antenna part reference, connector condition, and whether the issue is actually antenna related.