Bose Replacement Earbuds: Find the Right Part for Your Model
Bose Replacement Earbuds & Cases: Every Model Covered
Lost a Bose earbud or need a new charging case? Here's exactly what's available for the QuietComfort Ultra, QC II, and SoundSport Free.
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Bose makes some of the best-sounding wireless earbuds on the market, but they're not immune to the same problems that plague every earbud: lost pieces, degraded batteries, and charging cases that stop working.
The good news? You don't need to buy a whole new set. Whether you've lost a single earbud, cracked your charging case, or need a fresh battery, replacement parts exist for most Bose models — and they're significantly cheaper than buying new.
Here's everything you need to know about replacement options for every current Bose earbud model.
Which Bose Models Have Replacement Parts Available?
ReCellExchange carries genuine replacement parts for three Bose earbud models:
| Model | Released | Retail Price (New) | Parts Available |
| QuietComfort Ultra | 2023 | $299 | Earbuds, Charging Case |
| QuietComfort Earbuds II | 2022 | $279 | Earbuds, Charging Case |
| SoundSport Free | 2017 | $199 (discontinued) | Earbuds, Charging Case |
Bose replacement parts are model-specific and not interchangeable between models. A QuietComfort Ultra earbud will not work with a QC II charging case, and vice versa. Always match the part to your exact model.
Bose QuietComfort Ultra Replacement Parts
The QuietComfort Ultra is Bose's flagship earbud with Immersive Audio and best-in-class ANC. At $299 retail, replacing a single lost earbud or damaged case is far more economical than buying a whole new set.
Available Replacement Parts
- Left Earbud — Individual replacement for lost or damaged left bud
- Right Earbud — Individual replacement for lost or damaged right bud
- Charging Case — Replacement case (model 441408) compatible with QC Ultra earbuds
The QC Ultra uses a unique stability band system for fit. If you're replacing an earbud, the replacement comes with the standard stability bands — make sure to choose the right size (S/M/L) for a secure fit.
Bose QuietComfort Earbuds II Replacement Parts
The QC Earbuds II were Bose's top noise-cancelling earbuds before the Ultra took over. They're still widely used and one of the most common models people search for replacement parts for.
Available Replacement Parts
- Left Earbud — Individual replacement for lost or damaged left bud
- Right Earbud — Individual replacement for lost or damaged right bud
- Charging Case — Replacement case (model 435911) compatible with QC II earbuds
The QC Earbuds II and QC Ultra look similar but use different internals and charging cases. A QC II earbud will not pair with a QC Ultra case, and a QC Ultra earbud will not charge in a QC II case. Double-check your model before ordering.
Bose SoundSport Free Replacement Parts
The SoundSport Free was Bose's first true wireless earbud. While discontinued, millions are still in use — and replacement parts are in high demand since new sets are no longer available at retail.
Available Replacement Parts
- Left Earbud — Individual replacement for lost or damaged left bud
- Right Earbud — Individual replacement for lost or damaged right bud
- Charging Case — Replacement case compatible with SoundSport Free earbuds
Since Bose discontinued this model, the supply of genuine replacement parts is limited and shrinking. If you still use SoundSport Free earbuds, securing replacement parts sooner rather than later is a smart move — once they're gone, they're gone.
Bose Earbud Compatibility: What Works With What
This is where most people get confused. Bose earbuds are not cross-compatible between models. Here's the definitive guide:
| If You Have... | Compatible With | NOT Compatible With |
| QC Ultra earbuds | QC Ultra case only | QC II case, SoundSport case |
| QC II earbuds | QC II case only | QC Ultra case, SoundSport case |
| SoundSport Free earbuds | SoundSport Free case only | QC Ultra case, QC II case |
Every Bose earbud model uses a different case design, different charging contacts, and different pairing protocol. There is zero cross-compatibility. Always match the replacement part to your exact model number.
Find Your Bose Replacement Part
Genuine Bose replacement earbuds and charging cases — tested, verified, and ready to ship.
Browse All Bose PartsCommon Bose Earbud Problems (And Whether You Need a Replacement)
Before you order a replacement, make sure the problem actually requires one. Here are the most common Bose earbud issues and whether a fix or replacement is the right move:
Try first: Clean the charging contacts on both the earbud and inside the case with a dry cotton swab. Reset the earbuds by placing them in the case, waiting 30 seconds, then removing them.
Replace if: Cleaning and resetting don't help — the earbud's battery or charging circuit may be damaged.
Try first: Try a different charging cable and power source. Clean the USB-C port with compressed air.
Replace if: The case drains overnight or won't charge past a low percentage — the case battery has degraded.
Try first: Update firmware via the Bose Music app. Reset the earbuds to factory settings. Re-pair with your device.
Replace if: Distortion persists after a full reset and firmware update — the speaker driver may be failing.
Try first: Delete the earbuds from your Bluetooth settings and re-pair from scratch. Update the Bose Music app. Try pairing with a different device to rule out phone issues.
Replace if: The earbud won't enter pairing mode at all — there may be a hardware fault.
Try first: Use the Bose Music app's "Find My Buds" feature to locate it.
Replace if: It's truly gone — you can buy just the left or right earbud individually without replacing the whole set.
How to Pair a Replacement Bose Earbud
When you replace a single earbud, you'll need to pair it with your existing case and other earbud. Here's the process:
- Place the new replacement earbud into the charging case alongside your existing earbud
- Close the lid and wait 30 seconds
- Open the lid — both earbuds should show a blinking white light
- Open the Bose Music app on your phone
- Follow the on-screen prompts to complete pairing
- If prompted, update the firmware on the new earbud to match the existing one
If the replacement earbud doesn't pair automatically, try a factory reset: place both earbuds in the case, then press and hold the Bluetooth button on the case for 10 seconds until the case light blinks blue. Then re-pair from scratch.
Frequently Asked Questions
Don't Replace the Whole Set
Genuine Bose replacement earbuds and charging cases for every model. Tested, verified, and shipped with warranty.
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