Cargo Door Systems Built for Mission Success

Design to certification to production with a single accountable partner

Kawak engineers confidence into every freighter conversion. Our precision hydraulic systems integrate cleanly and perform reliably under real-world conditions. From venting and locking to latching and lifting, each component is designed for flawless operation in demanding aerospace environments.

As a focused engineering partner, we move fast, adapt quickly, and deliver custom hydraulic modules and valve systems matched to your aircraft, schedule, and certification path. Our solutions are backed by years of experience and FAA-certified performance that keeps fleets mission-ready.

What We Deliver

• Hydraulic Power Units and integrated power assemblies
• Vent, Lock, Latch, and Lift actuators
• Control sequence and selector valves
• Door manifolds and drop-in replacement components
• Compatibility with phosphate-ester hydraulic fluids used in modern aircraft

Proven on Leading Platforms

We have delivered certified hydraulic solutions for major cargo conversions, including Boeing 757 and Airbus A321 programs. Our work includes reverse-engineering obsolete components, custom system design, DO-160 validation, and FAA certification on accelerated timelines.

*Currently developing a new cargo door hydraulic system for a Boeing 777 freighter conversion, demonstrating our ability to scale for widebody platforms.

Why Kawak

• Millions of flight hours of in-service experience
• Proven performance in severe operating conditions
• AS9100 compliant quality system
• Customer-focused engineering and post-certification support

End-to-End Program Support

Whether you are retrofitting a narrow-body or converting a wide-body, Kawak provides fully integrated hydraulic solutions that reduce program risk, streamline installation, and improve system reliability. We support you from detailed design through production and post-certification sustainment.

Let’s Talk

Planning a cargo door conversion? Partner with Kawak for proven engineering, rapid development, and precision manufacturing that keep your program on schedule and your fleet mission-ready.