Compatible Replacement for Chamberlain/LiftMaster 41A3504 Garage Door Opener Antenna Extension Kit – Includes Antenna, 15 ft Coaxial Cable, Mounting Bracket, and F-Type Coaxial Adapter

This replacement antenna extender kit delivers the same performance and fit as the original Chamberlain 41A3504 part. It includes a durable antenna, coaxial cable, and bracket—everything needed to extend your opener’s signal reception outside the garage. Especially helpful in environments with signal interference, this kit makes remote activation smoother and more reliable.Key Features: Direct Replacement – Fully compatible with Chamberlain and LiftMaster garage door openers originally using part 41A3504 or 41A3504-1.Complete Kit – Includes an antenna, 15 ft (approx.) coaxial cable, and mounting bracket for outdoor antenna placement. Improved Signal Reception – Extending the antenna outside the garage reduces interference for more reliable remote control operation—ideal for garages with metal doors or obstructions. Simple Installation – Setup is quick and easy: mount the antenna using the included bracket, and connect to the opener via standard "F"-style connector.Included Components:1 × External Antenna1 × Coaxial Cable (15 ft)1 × Mounting Bracket1 × Universal F-Type Coaxial Adapter

• This replacement antenna extender kit delivers the same performance and fit as the original Chamberlain 41A3504 part. It includes a durable antenna, coaxial cable, and bracket—everything needed to extend your opener’s signal reception outside the garage. Especially helpful in environments with signal interference, this kit makes remote activation smoother and more reliable.
• Direct Replacement – Fully compatible with Chamberlain and LiftMaster garage door openers originally using part 41A3504 or 41A3504-1.
• Complete Replacement Kit – Includes antenna, 15 ft coaxial cable, mounting bracket, and now a universal F-type coaxial adapter for broader compatibility.