Garmin G5 Stack PFD / HSI Package for Sale – Dual G5s with GMU 11, GAD 29B, GAD 13 & Lightning Protection Module

Garmin G5 Stack. If you’re searching for a Garmin G5 stack for sale, this complete dual-instrument PFD/HSI package offers a fully integrated, STC-supported solution for certified aircraft. Designed and manufactured by Garmin, the G5 system has become one of the most popular upgrades for replacing aging vacuum-driven gyros with reliable solid-state digital instrumentation.

This is not a partial setup — it’s a complete, thoughtfully assembled Garmin G5 stack including interface modules, backup batteries, lightning protection, and STC documentation for a streamlined installation.

Garmin G5 Stack

Dual Garmin G5 Electronic Flight Instruments – PFD and HSI Configuration

This package includes:

• (2) Garmin G5 Electronic Flight Instruments
• Configurable as Primary Flight Display (PFD) and HSI
• (2) Backup Batteries for independent power redundancy

The primary G5 can serve as an Attitude Indicator, displaying:

• Pitch and roll
• Airspeed tape
• Altitude tape
• Vertical speed
• Slip/skid indication

The second G5 operates as an HSI / Heading Indicator, providing course and heading guidance when paired with the included magnetometer and navigation interfaces.

Garmin G5 Stack

GMU 11 Magnetometer for Accurate Digital Heading Reference

Included in this stack is the Garmin GMU 11 with installation kit.

The GMU 11 provides:

• Accurate magnetic heading reference
• Stable digital heading data
• Reliable integration with G5 HSI functions
• Solid-state precision without gyro drift

This eliminates traditional directional gyro precession and vacuum dependencies.

Garmin G5 Stack

GAD 29B Autopilot and GPS Interface Adapter Included

The package includes the Garmin GAD 29B with install kit.

The GAD 29B enables:

• GPS navigator integration
• Navigation data display on the G5 HSI
• Compatibility with supported autopilot systems
• Clean digital interfacing

This allows the G5 stack to function as part of a modern integrated navigation environment.

GAD 13 Adapter and Lightning Protection Module for System Integrity

Also included:

• (1) Garmin GAD 13 with connector
• (1) Lightning Protection Module (LPM)

The GAD 13 provides additional sensor/interface capability, while the Lightning Protection Module safeguards the installation from transient electrical events — adding long-term system reliability.

Complete Installation Hardware and STC Permission Letters

This package includes:

• Install kits for all components
• (2) G5 adapter plates for clean panel fit
• (2) STC Permission Letters for certified aircraft installation

The STC letters simplify paperwork and support legal installation under Garmin’s approved certification.

Ideal Garmin G5 Upgrade for Certified Aircraft Panels

This part is maint for:

• Replacing vacuum-driven attitude indicators
• Eliminating directional gyros
• Modernizing steam gauge panels
• Increasing IFR redundancy
• Enhancing situational awareness
• Reducing vacuum system maintenance

The dual backup batteries ensure continued operation during electrical failure, making this system especially valuable for IFR-certified aircraft.

Complete Garmin G5 Dual Stack Ready for Installation

If you’ve been looking for a Garmin G5 PFD/HSI stack with GMU 11 and GAD 29B, this offering delivers:

• Dual G5 instruments
• Magnetometer integration
• Autopilot interface capability
• Lightning protection
• Backup battery redundancy
• STC documentation
• Installation hardware included

A full dual-G5 glass solution.
A certified-aircraft-ready upgrade.
A modern digital flight instrument system prepared for its next panel.