Garmin GPS 400

Garmin GPS 400. The Garmin GPS 400 has earned a lasting reputation as a dependable, IFR-approved GPS navigator designed for pilots who value accuracy, stability, and straightforward cockpit integration. Built during a period when Garmin established many of the standards still followed in modern avionics design, the GPS 400 continues to serve reliably in certified aircraft around the world. This particular unit, identified by Part Number 011-00504-10, has been fully inspected and thoroughly tested, confirming that it is operating correctly and ready for installation. Garmin GPS 400 | Afffordable Aircraft Parts For Sale

For pilots flying in today’s controlled and complex airspace, dependable GPS navigation is not optional—it is essential. The GPS 400 delivers that dependability with proven Garmin engineering, offering a clear display, intuitive controls, and consistent satellite performance that pilots have trusted for years.

Garmin GPS 400

IFR-Approved Navigation You Can Rely On

The Garmin GPS 400 is IFR approved, supporting enroute navigation, terminal procedures, and non-precision approaches. This capability makes it a strong choice for aircraft owners seeking a compliant GPS solution without the complexity or cost of newer, more integrated systems. Pilots operating under instrument flight rules appreciate the GPS 400 for its predictable behavior, logical menu structure, and stable guidance during critical phases of flight.

Training materials and operational guidance from the Federal Aviation Administration frequently emphasize the importance of reliable navigation sources during IFR operations. A properly functioning GPS navigator like the GPS 400 supports those principles by delivering accurate positional data and consistent course guidance, reducing workload when conditions demand focus and precision. Garmin GPS 400 | Afffordable Aircraft Parts For Sale

Garmin GPS 400

Fully Inspected and Tested for Operational Readiness

This Garmin GPS 400 has undergone inspection and functional testing, verifying that it performs as intended. For aircraft owners and maintenance professionals, this step is critical. Tested units reduce uncertainty during installation and initial operation, helping ensure that the navigator integrates smoothly with existing avionics and performs reliably from the first flight onward. Garmin GPS 400 | Afffordable Aircraft Parts For Sale

A GPS unit with verified functionality is especially valuable in maintenance and upgrade projects, where minimizing troubleshooting time translates directly into reduced downtime and smoother return to service.

Garmin GPS 400

Clean Display and Intuitive Interface

The GPS 400 features a clear, easy-to-read display designed to present navigation data without distraction. Waypoints, flight plans, and course information are displayed logically, allowing pilots to interpret critical data at a glance. The unit’s button-driven interface is intentionally simple, reducing the learning curve for pilots transitioning from older systems or maintaining proficiency on familiar equipment.

Many pilots appreciate the tactile feedback and structured workflow of the GPS 400, particularly in training environments or aircraft flown by multiple pilots. Its interface encourages disciplined navigation management, a concept reinforced throughout general aviation training resources published by organizations such as the Aircraft Owners and Pilots Association.

Garmin GPS 400

Designed for Certified Aircraft Integration

Engineered specifically for certified aircraft, the Garmin GPS 400 integrates cleanly into a wide range of general aviation panels. Its design supports compatibility with common avionics architectures, making it suitable for panel upgrades, replacements, or restorations. Avionics technicians value the GPS 400 for its well-documented installation paths and predictable system behavior.

For aircraft owners seeking to maintain certification compliance while improving navigation capability, the GPS 400 offers a practical balance between performance and simplicity.

Garmin GPS 400

Proven Garmin Engineering and Longevity

Garmin avionics are widely respected for their durability and long service life, and the GPS 400 is no exception. Built to withstand vibration, temperature changes, and continuous operational use, this unit reflects Garmin’s commitment to producing equipment that performs reliably over time. Discussions across avionics support communities and manufacturer documentation available through garmin.com frequently highlight the longevity of legacy Garmin GPS units when properly maintained.

This proven engineering makes the GPS 400 a sensible choice for operators who prioritize reliability over novelty, especially in aircraft that continue to rely on hybrid or traditional panel configurations.

Garmin GPS 400

Ideal Applications for the Garmin GPS 400

This IFR-approved GPS navigator is well suited for:

• aircraft requiring a compliant standalone IFR GPS

• replacement of aging or unreliable GPS units

• panel upgrades focused on navigation reliability

• training aircraft operating under IFR procedures

• owners maintaining legacy Garmin-equipped cockpits

Its straightforward design and tested condition make it particularly attractive for aircraft owners who want dependable navigation without introducing unnecessary complexity.

Garmin GPS 400

A Practical Solution for Modern IFR Flying

While newer touchscreen navigators continue to enter the market, the Garmin GPS 400 remains relevant because it does exactly what it was designed to do—provide accurate, reliable GPS navigation for instrument flight. Many operators intentionally retain proven units like the GPS 400 as part of a balanced avionics strategy, valuing predictability and ease of use alongside newer equipment. Garmin GPS 400 | Afffordable Aircraft Parts

Garmin GPS 400

Ready to Support Its Next Aircraft

The Garmin GPS 400 (P/N 011-00504-10) stands as a proven IFR navigation solution backed by inspection, testing, and Garmin’s long-standing reputation for quality. Its reliable performance, certified compatibility, and pilot-friendly interface make it a dependable choice for aircraft owners focused on safety, compliance, and operational confidence.

A trusted navigator.
A verified performer.
An IFR-approved Garmin GPS ready to guide its next aircraft with precision and reliability.