The 79545-017 is a Piper OEM forward cabin door seal used in the aircraft door assembly to ensure proper sealing between the forward cabin door and the fuselage frame. It is installed around the perimeter of the forward door and provides an airtight, watertight, and vibration-damping interface when the door is closed.

In Piper aircraft applications, this seal plays an important role in maintaining cabin comfort by reducing noise, air leakage, dust ingress, and moisture penetration. In aircraft equipped with pressurized or semi-sealed cabin configurations, it also contributes to maintaining proper cabin environmental integrity.

The seal compresses against the fuselage door frame when the door is latched, creating a continuous sealing surface that adapts to minor structural tolerances and long-term airframe movement. Over time, it conforms to the mating surfaces, improving sealing performance.

It is manufactured from aviation-grade elastomeric rubber designed to withstand repeated compression cycles, temperature changes, UV exposure, and chemical/environmental contamination typically encountered in general aviation operations.

Key features include:

Piper 79545-017 forward cabin door seal (OEM part)
Installed on forward cabin door perimeter
Provides airtight, watertight, and vibration-reducing seal
Reduces cabin noise and improves in-flight comfort
Elastomeric aviation-grade rubber construction
Designed for repeated compression and long service life
Conforms to fuselage and door frame surfaces over time
Resistant to temperature variation and UV exposure
Direct replacement part per Piper IPC specifications
Used in certified Piper aircraft door assemblies