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Garmin GPS 175 GPS Navigator With GA 35 GPS Antenna Kit STC For Certified Aircraft

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Part# 11-17226
MFR Model# 010-01822-50


LPV Approaches, Priced for Your Aircraft

  • Slim, all-in-one touchscreen GPS navigator for Part 23 Class I/II aircraft (weighing less than 6,000 lbs) and experimental/amateur-built aircraft
  • Take advantage of WAAS GPS navigation with LPV approaches, which offer minimums as low as 200’ to greatly expand your operational capability
  • Pairs with select Garmin flight displays, or integrates directly with your existing course deviation indicator (CDI) for cost-effective installation¹
  • Visualize your entire flight plan, including departures, arrivals, instrument approaches, holding patterns and more on a rich, dynamic global moving map
  • Wirelessly transfer flight plans and stream weather, traffic, GPS position and backup attitude via built-in Connext® technology to the Garmin Pilot™ app and more
Big capabilities come in a small package with the GPS 175 navigator. With its bright, clear high-resolution touchscreen display, you can have the advanced navigation functions you’ve always dreamed of. Entering flight information is a cinch, and accessing every function is fast and easy. It’s equally at home in certificated aircraft or an experimental aircraft. And it’s the same 2” height as older navigation equipment and can allow you to keep the legacy composite CDI already in your aircraft to minimize installation cost¹. That makes GPS 175 the smart, affordable way to add next-generation navigation to your favorite airplane.

Perfect Touch

The moment you power up GPS 175, you’ll see a familiar Garmin homepage on the 4.8” display, which puts the most important functions within only a few touches. Navigate to dedicated pages for the moving map, terrain, nearest airports, flight plan, procedures, waypoint information, utilities and more. With shortcuts available to the flight plan and Direct-to functions on almost every page, navigation features are usually just a tap away. Use your finger to pan and zoom on any map, traffic and terrain page. Enter waypoint data with the on-screen keyboard. And touch the home button to get you back to the main page at any time.
For added control stability in flight, a shelf across the lower edge of the display serves to steady your hand in smooth and turbulent flight conditions. And if you prefer traditional controls, the concentric knobs provide yet another way to control many of the GPS 175 navigator’s functions.

Intuitive Navigation

With GPS 175, building and modifying flight plans is simple. As you enter waypoints, our FastFind feature automatically begins searching for the nearest identifier as soon as you start typing, so — in most situations — a press or 2 reveals just what you were thinking. You can also create holds, insert Victor airways and corresponding exit options, and add departures, arrivals and instrument/visual approach procedures. Additionally, you can edit your route using the map screen; a handy "rubber band" feature lets you grab any leg of your flight plan route and move it to accommodate a deviation or ATC amendment to your flight plan.

A variety of dynamically drawn and displayed maps provide situational awareness and context to the flight plan by highlighting visual reporting points, navaids, SafeTaxi® diagrams and hazards such as obstacles, power lines and terrain. Plus, the Smart Airspace™ feature automatically highlights airspace close to your current altitude and de-emphasizes airspace away from the current altitude.

Advanced Approach to IFR

The SBAS/WAAS-certified GPS receiver can allow you to fly GPS-guided LPV glidepath instrument approaches down to as low as 200’, greatly expanding your operational capability. You can also access newer lateral performance (LP) and all area navigation (RNAV) approaches. Precise course deviation and roll steering outputs can be coupled to our GFC™ 500 and GFC 600 autopilots as well as select third-party autopilots so that IFR flight procedures such as holds, NextGen radius-to-fix (RF) legs and missed approaches may be flown automatically. In addition, the GPS 175 navigator lets you create and execute custom holding patterns over an existing waypoint or user-defined waypoint.

Plus, when operating in VFR conditions, GPS 175 can provide advisory vertical approach guidance based on a published glidepath angle or a 3-degree approach glideslope from the runway threshold, while considering terrain and obstacle clearance. With this advisory guidance, you’re able to fly more consistent, precise vertical glidepaths into a variety of airfields.

Add ADS-B Traffic and Weather

When paired with dual-link Garmin ADS-B solutions, such as our GTX™ 345 series transponder or GDL® 88 universal access transceiver, GPS 175 can display ADS-B traffic targets as well as subscription-free ADS-B weather data in the U.S. The ADS-B weather link provides in-flight access to animated NEXRAD imagery, METARs, TAFs, winds and temperatures aloft, PIREPs, NOTAMs and more.

When equipped with a compatible ADS-B solution, visual alerts help you recognize and avoid potential conflicts in busy airspace. Our patented TargetTrend™ relative motion technology offers a faster, more intuitive way to judge the direction and closure rate of intruding targets in relation to your aircraft’s position. For example, if traffic is ahead of you and traveling along the same track but at a slower rate, the motion vector would point opposite of its indicated direction of flight to show you are overtaking the traffic. And, at the start or end of each flight, TerminalTraffic™ technology provides the most comprehensive picture of ADS-B equipped aircraft and ground vehicles in the airport environment. ADS-B equipped aircraft in-flight are easily distinguished from ground vehicles and taxiing aircraft, which are displayed using distinct colors and symbols. All information is presented on a simple, easy-to-understand SafeTaxi diagram with reference to runways, taxiways, hangar locations and more.

Cockpit Integration

The GPS 175 navigator interfaces with a variety of Garmin flight displays, including G3X Touch (experimental and certified), G5 (experimental and certified), G500/G600, G500 TXi/G600 TXi as well as select third-party displays¹. Plus, it’s also compatible with many legacy, composite-input based CDIs — allowing you to keep your existing CDI and have an easier, more cost-effective installation¹.

And for even more work-saving convenience, you can use the built-in Connext technology to stream information between GPS 175 and compatible Garmin portables and mobile devices running the Garmin Pilot or FltPlan Go apps. You can create flight plans at home and upload them at the airport. And you can stream GPS data and backup attitude information (from the built-in AHRS) to your mobile device or Garmin portable, making them even more useful cockpit companions. Better still, you can also share ADS-B traffic and weather information if you’re equipped with a compatible ADS-B solution.

Plus, our optional Flight Stream 510 installs in the memory card slot of GPS 175 to enable our Database Concierge database transfer and management capabilities via our Connext gateway. At home, you can download selected databases onto your mobile device by using the Garmin Pilot app. Then, once you get to the airport, Flight Stream 510 will automatically establish a wireless connection to the Garmin Pilot app and upload the databases from your device to your GPS 175 in minutes.


    Physical and Performance

  • TSO applicability: C146e Class 3; C157b Category 1; C165a; C195b Category B1, B3, B5, B7
  • Display size: 4.8" (122.5 mm) diagonal
  • Display resolution: 732 pixels (W) x 240 pixels (H)
  • Unit bezel height: 2.02" (51.0 mm)
  • Unit bezel width: 6.25" (159.0 mm)
  • Unit depth with connectors: 6.58" (167 mm) (measured from face of aircraft panel to rear of connector backshells)
  • Unit weight: 1.3 lbs (0.6 kg)
  • Maximum altitude: 35,000 ft
  • Input voltage range: 9 VDC - 33 VDC
  • Maximum display brightness: 260 fL
  • Operating temperature range: -20° C to 55° C (-4° F to 131° F)
  • Bluetooth version: 4.2
  • Number of GPS channels: 15 (12 GPS and 3 GPS/WAAS/SBAS)
  • LAT/LON position accuracy: <1.25 meter RMS horizontal, < 2 meter vertical, with WAAS
  • Maximum velocity: 1,000 knots (above 60,000 feet)
  • Position update Interval: 0.2 sec (5 Hz)


Interface Manufacturer Model
Autopilots Honeywell (Bendix/King) KAP 100/140/150, KFC 150/200/250
KFC 225/275/325
Century I/II/III/IV, 21/31/41, 2000, Triden
AK 1081 [1]
S-TEC System 20/30/40/50/55/60-2/60 PSS/65
System 55X
ST-901 [1]
Cessna 300B/400B/800B
300 IFCS/400 IFCS
Garmin GFC 500
GFC 600
Navigation Indicators Garmin GI 106/106B (IFR)
GI 102/102A (VFR)
Honeywell (Bendix/King) KI 204/209/209A (IFR)
KI 203/208/208A (VFR)
KI 206/209A/525A,KPI 552/552B/553/553A/553B (IFR)
KI 202/208A (VFR)
ARC (Cessna) IN-386A, IN-481AC (IFR)
IN-385AC (VFR)
Century NSD 360A, NSD 1000 (IFR)
Collins 331A-6P, PN-101, IND-351D (IFR)
S-Tec ST 180 (IFR)
Mid Continent MD222-406, MD200-306, MD200-307 (IFR)
MD222-402, MD200-302, MD200-303 (VFR)
Narco VOA 5/9/50M (IFR)
VOA 4/8 (VFR)
EFIS Displays Aspen EFD 1000/500
Garmin G500/G600
TXi Series
G5 (ADI)
G3X Touch
EHSI Displays Garmin G5 (HSI)
Sandel SN 3308
SN 3500/4500
Heading Reference Sources Aspen EFD 1000
Garmin GAD 42
TXi Series
Sandel SN3500
Multifunction Displays Garmin GMX 200
Datalinks Garmin GDL 82
GDL 88/88D
Transponders Garmin GTX 327
GTX 328
GTX 330/330D
GTX 330/330D w/ES
GTX 335
GTX 345
  • Frequently Purchased With
  • Customers Also Viewed


Received not yet installed, but i am confident there will be no issues. Thanks, Rick.

Rick R Verified Purchase


March 24, 2022

Since it is still being installed I will report at a later date.

John M
February 8, 2021

Excellent quality gps

January 28, 2020

The GPS 175 worked well for just barely over 2 years, about 1.5 years from first flight. Then it lost the ability to receive satellite signals. Investigating the warranty options now. If they honor the warranty and repair at no cost, then 5 stars.

Bob M
August 29, 2021


Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Does the Garmin GPS 175 come with the GPS antenna?

Yes, the GPS antenna is included.

Q: Is the installation kit included with the Garmin GPS 175 kit?

Yes, the tray and connector kit will be included.

Q: What type antennae wiring (coax) is required? Is there a minimum cable length? Is the form factor of the antennae same as WAAS 430 series?

The WAAS GPS antenna is the GA 35 which is used with most 430w installations. It is recommended you use RG400 cable (p/n 11-09202). No, the form factor is not the same. The 430 is taller than the 175.

Q: I have no CDI other than two Narco 122s. Can I use the 175 with the Garmin autopilot 500 for full approaches?

We unfortunately have no compatibility information between the GPS 175 and the Narco 122s. It may work fine, but we cannot confirm it for sure.

Q: How do you update the database when necessary? I presently use an iPad with the Garmin Pilot app. Can you transfer flight plans without buying the expensive sd card for concierge?

The database can be updated via fly.Garmin.Com. Flightplans require the Garmin Flightstream 510 to transfer.

Q: What is the difference between the GTN625 and the GPS175 at this point?

The GTN 625 has a larger screen and some additional interface features.

Q: It looks like the GPS 175 comes with an SD card. What is the part number for a blank SD card if I want a spare card, and do you cary that part number in your store inventory?

The SD card is a datacard which holds the databases for the unit to properly function. We do not carry those items, and a replacement would need to be obtained directly from a Garmin installer.

Q: Please clarify, does the Garmin GPS 175 kit include the STC and Letter of Authorization it? (Allowing non-Garmin dealer installs)

Inside the GPS 175 is a black envelope that has a Garmin code for the end user to access the Garmin STC for that unit.

Q: Does the GPS 175 communicate with the G5 and GTX transponders via RS232, CAN or AirINC? Also, does the unit ship with the installer/interconnect diagram document or PDF link? Garmin has only publicly published the maintenance manual at this point on their WEB site.

The Garmin GPS 175 communicates via RS232 to G5 and the GTX 327/328/330/335/345. The unit does not come with manual. Please contact avionics sales for the manual.

Q: Is it possible to overlay ADS-B weather information on the GPS 175 navigation screen?

Yes, via the GTX 345.

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