Description
Overview
The Trio Pro Pilot Autopilot System is fully FAA STC-approved for the extensive Piper PA-28 series fleet—including the PA-28-140, -150, -151, -160, -161, -180, -181, -235, and -236 models. This advanced digital retrofit solution is the ideal replacement for costly, unserviceable legacy Piper or Century autopilots. It brings modern digital precision, track stabilization, and cross-country workload reduction to your Cherokee, Warrior, Archer, or Pathfinder with a straightforward, compliant install backed by U.S.-based support.
Features & Benefits
- FAA STC-Approved for Piper PA-28-140, -150, -151, -160, -161, -180, -181, -235, -236 airframes
- All-inclusive kit: All aircraft-specific mounting brackets, hardware, and pre-wired harnesses included
- Compatible with both 14V and 28V electrical systems (select your voltage configuration when ordering)
- Flexible mounting: Installs cleanly in a standard 3-1/8” instrument hole or radio stack location
- Works with leading avionics: Seamlessly interfaces with Garmin, Aspen, uAvionix, Dynon, and legacy setups
- Installable by any licensed A&P/IA—no proprietary factory dealer waitlists required
- U.S.-based technical support included with every system
What’s Included
- Trio Pro Pilot Autopilot Control Head
- Model-specific servo(s) and Piper PA-28 series-specific mounting hardware
- Custom pre-wired harnesses
- FAA STC paperwork and Airplane Flight Manual Supplement (AFMS)
- Complete installation and pilot documentation
- Direct access to expert tech support
Support & Warranty
Questions? Contact our support team or call (540) 309-6427. Installation kits are warranted by The STC Group LLC to be free from defects in materials or workmanship for the earlier of 3 years or 400 flight hours from the date of purchase (6 months / 200 flight hours for factory-repaired or overhauled exchange units). The STC Group’s sole remedy is repair, replacement, or refund at its discretion. The autopilot control head, servos, and electrical harnesses are manufactured and warranted exclusively by Trio Avionics Corporation, not The STC Group. See the full STC Group warranty terms.
Piper PA-28 Cherokee Fleet Avionics Integration & Resources
- Panel Layout Flexibility: Perfectly matches traditional Piper shock-mounted panels. Fully compatible with original legacy vacuum instruments or modern electronic flight displays commonly retrofitted into the PA-28 fleet (including Garmin G5, GI 275, Aspen Evolution, uAvionix AV-30, or Dynon).
- Coupled Approach Precision: Flies precise cross-country flight tracks and coupled GPS approaches, including LPV approaches with vertical guidance, when paired with standard WAAS navigators like the Garmin GPS 175, GI 355, 430W/530W, or GTN series. The Trio Pro Pilot does not provide coupled ILS approach capability.
- Download Manuals & AML: Review the official FAA Approved Model List (AML), STC documentation, and wiring schematics over at our Trio Autopilot Documentation & Support Center.
- Pre-Shipment Panel Verification: Every system is built to order to match your tail number and control cable configuration. After checkout, we will cross-reference your chosen voltage, N-number, and avionics stack before your custom kit is manufactured and shipped. For pre-purchase assistance, contact Jeff directly through our Panel Consultation Page.