Bose QuietComfort Ultra Headband Arch Replacement – Fits 1st & 2nd Gen (2023–2025) Cosmetic Condition:Grade A - Excellent balanced sound with dynamic range

balanced sound with dynamic range and noise isolation

Model Identification (Important)

Audio Port Board: 821-02673-A (Fits A2289 and A2338)

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MPN: SM-R860NZSAXAA

Bose QuietComfort Ultra Headband Arch Replacement – Fits 1st & 2nd Gen (2023–2025) Cosmetic Condition:Grade A - Excellent balanced sound with dynamic rangeRestore the structure and original fit of your Bose QuietComfort Ultra headphones with this replacement plastic headband arch, offered in Grade A Excellent or Grade B Good condition, and designed to fit both generations of QC Ultra models. The headband arch is the inner structural component that supports the headband cushion and connects the left and right earcup arms. It is ideal for repairs involving cracked, broken, or warped headband frames. These