Hartzell Propeller Announces Major Expansion and Price Reductions for Top Prop Program

On April 6, 2026, Hartzell Propeller announced a significant expansion of its popular Top Prop conversion program. The initiative, detailed in a company press release, is designed to make high-performance propeller upgrades more accessible and affordable for the general aviation community. The expansion introduces more than 150 additional propeller models to the program and features substantial price reductions across several popular aircraft platforms.

Headquartered in Piqua, Ohio, Hartzell Propeller is a century-old manufacturers and a flagship brand under Signia Aerospace. The company is widely recognized for its blended airfoil technology and structural composite materials. The Top Prop program serves as an aftermarket conversion initiative, allowing aircraft owners to replace or upgrade their existing propellers with Supplemental Type Certificate (STC) approved alternatives.

According to the official release, upgrading through the Top Prop program generally yields tangible aircraft performance improvements. These benefits include shorter take-off distances, increased climb rates, higher cruise speeds, lower noise levels, and smoother overall operation. In 2023, the company celebrated a historical milestone by delivering its 30,000th replacement propeller through the program.

Expanding the Portfolio and Reducing Costs

The 2026 expansion of the Top Prop program includes several major updates aimed at reducing the cost of ownership. Hartzell states that more than 150 new propeller models, encompassing both aluminum and advanced carbon fiber designs, have been added to the aftermarket portfolio.

In a move to offer more competitive upgrade paths, Hartzell has revised its pricing structure, resulting in significant cost reductions for specific airframes. Real-world examples provided by the company highlight an average list price reduction of approximately 26 percent for Cirrus 4-blade carbon fiber propellers. Additionally, King Air 3- and 4-blade type-certified propellers see an average reduction of 35 percent, while Air Tractor 3-, 4-, and 5-blade type-certified propellers have been reduced by an average of 21 percent.

Enhanced Digital Search Experience

To support the expanded catalog, Hartzell launched a new digital search tool designed to simplify the upgrade process. The company notes that users can now identify compatible propellers by filtering through aircraft make, engine type, and model year. Furthermore, the tool features filtering by certification authority, such as the FAA and EASA, which streamlines the selection process for international pilots and operators.

Recent Product Developments and Partnerships

The press release also highlights several recent additions to the Top Prop lineup that showcase Hartzell’s focus on lightweight, high-performance materials. Notable new products include the Carbon Voyager, a lightweight three-blade propeller designed specifically for the Cessna Skywagon fleet. The company also introduced the Falcon Series (The Kestrel), described as Hartzell’s lightest constant-speed propeller, engineered to provide aerodynamic performance for Rotax engines like the Rotax 916. Finally, the Polaris, a 3-blade high-performance carbon fiber propeller, now serves as a factory-installed option for the Diamond DA40 NG.

Beyond product hardware, Hartzell confirmed the continuation of its industry partnerships. The company maintains its relationships with the Aircraft Owners and Pilots Association (AOPA) and the Recreational Aviation Foundation (RAF), offering renewed discounts on new Top Prop installations for active members. All Top Prop conversions remain backed by Hartzell’s industry-leading warranty, which covers the propeller through its first overhaul, historically up to six years or 2,400 flight hours.

Executive Perspective

Company leadership emphasized that customer input drove the recent programmatic changes.

“By enhancing the portfolio with more than 150 additional propeller models and improving pricing… we have made it easier than ever for pilots to upgrade,” stated JJ Frigge, President of Hartzell Propeller, in the official release.

Upcoming Industry Showcases

Hartzell Propeller plans to showcase the expanded Top Prop program at two major aviation events in the spring of 2026. According to the company’s announcement, representatives will be present at the Sun ‘n Fun Aerospace Expo in Lakeland, Florida, from April 14 to 19, hosting an Innovation Preview on April 13. The company will also attend AERO Friedrichshafen in Germany from April 22 to 25, where it will present a live seminar on carbon fiber propeller technology.

AirPro News analysis

At AirPro News, we note that the economic relief brought by this program expansion is highly unusual in the modern aviation market. A 26 to 35 percent price reduction on major, critical components like STC-approved propellers represents a significant shift in aftermarket pricing strategies. This aggressive cost reduction will likely be a major draw for aircraft owners facing rising operational and maintenance costs, particularly within the heavily utilized Cirrus, King Air, and Air Tractor fleets. By pairing these price cuts with a modernized digital search tool featuring EASA and FAA filtering, Hartzell is clearly positioning itself to capture a larger share of the international upgrade market.

Frequently Asked Questions

What is the Hartzell Top Prop program?
The Top Prop program is an aftermarket conversion initiative by Hartzell Propeller that allows aircraft owners to upgrade their existing propellers with STC-approved, high-performance alternatives, often featuring scimitar blades and carbon fiber composites.

How much have prices been reduced in the 2026 expansion?
According to Hartzell, average list prices have been reduced by approximately 26 percent for Cirrus 4-blade carbon fiber propellers, 35 percent for King Air 3- and 4-blade propellers, and 21 percent for Air Tractor 3-, 4-, and 5-blade propellers.

What warranty comes with a Top Prop conversion?
All Top Prop conversions are backed by Hartzell’s warranty, which covers the propeller through its first overhaul. Historically, this has covered up to 6 years or 2,400 hours of operation.

Sources: Hartzell Propeller