Size (CM): 94*84*144

Weright (KG): 165

PWC32677-300-PMA is a precision aerospace replacement component, compliant with AS9100D quality standards and FAA/PMA (Parts Manufacturer Approval) certifications, designed for commercial aircraft auxiliary power units (APUs).

It functions as an APU fuel injector seal ring, creating an airtight seal between the fuel injector and its mounting interface in the APU combustion chamber. This prevents fuel leakage, ensures precise fuel atomization and distribution, supports stable, efficient APU combustion, avoids incomplete combustion that would increase emissions or reduce APU power output, and prevents fire risks from leaked fuel.

Made from high-temperature, oil-resistant fluorosilicone rubber, it withstands -50°C to 220°C and long-term contact with aviation fuel. Weighing 0.04kg, it enables quick MRO replacement, critical for APU operational safety and performance.