Buying a Used Trumpet Mouthpiece — What to Check Before You Buy

Used trumpet mouthpieces are everywhere — eBay, Reverb, local music stores, Facebook groups, the case of every player who's been on a mouthpiece safari. They're usually priced at 30–60% of new retail. Most of them are perfectly fine. Some of them are not.

Knowing the difference takes about two minutes of inspection. This guide covers exactly what to look for, what to avoid, where to buy safely, and how to clean a used mouthpiece properly before you play it.

Why Used Mouthpieces Are Usually a Good Deal

Mouthpieces don't wear out the way instrument pads or strings do. The metal itself is durable. A mouthpiece that's been played for five years and properly maintained is functionally identical to a new one.

Players sell mouthpieces for one of a few reasons:

• They went on a mouthpiece safari and accumulated too many
• They upgraded and no longer need the old piece
• They stopped playing
• The mouthpiece never felt right and they moved on

None of these reasons mean the mouthpiece is defective. Most used mouthpieces for sale are in perfectly usable condition — they just weren't right for the player who owned them.

The exception: mouthpieces that were dropped, mishandled, or modified. These can have problems that aren't obvious until you play them. The inspection process below catches most of them.

The Inspection: 5 Things to Check

Do all five of these before buying any used mouthpiece. If you're buying online, ask the seller for close-up photos of each area. If a seller can't or won't provide them, don't buy.

1. The rim playing surface — the most important check

The rim is where your lips contact the mouthpiece. It needs to be smooth, round, and uniformly plated.

What you're looking for:

• No dents of any size on the playing surface
• No scratches across the rim surface
• Plating intact — no spots where brass is showing through the silver or gold

Why it matters: Any imperfection on the rim surface creates uneven pressure on your lips. This affects embouchure consistency and can cause irritation over extended playing. A single dent on the rim playing surface is enough to reject the mouthpiece entirely.

What disqualifies the purchase:

• Any dent on the rim, no matter how small
• Scratches across the flat rim surface (scratches on the side of the cup or shank are less critical)
• Bare brass showing through the plating on the lip contact area

What's acceptable:

• Minor cosmetic scratches on non-contact surfaces (the outside of the cup, the side of the shank)
• Light wear on the shank exterior from being inserted into the trumpet
• Slight dulling of the overall finish from normal use

2. The plating condition on the rim

Plating inspection deserves its own entry because of the health consideration involved.

Silver and gold plating exist partly for aesthetics and feel, and partly as a barrier between your lips and the underlying brass. Raw brass in contact with lip tissue can cause reactions in some players — irritation, swelling, or in rare cases an allergic response.

If the plating on the rim playing surface has worn through to the point where bare brass is visible, don't use the mouthpiece. This is a health concern, not just an aesthetic one.

Check specifically: the flat rim surface and the inner rim edge (the bite). These are the highest-contact areas.

If plating is worn but not fully through, you have a judgment call — minor wear that isn't through to brass is less critical, but a mouthpiece where the plating is clearly thinning significantly on the rim is a mouthpiece that will need replating soon.

Replating is available from several mouthpiece specialists (Bob Reeves, Austin Custom Brass, and others offer gold replating services). Cost is typically $40–$80. Factor that into your offer price on a used mouthpiece with worn plating.

3. The shank — check for modification or damage

The shank is the tapered section that inserts into the trumpet leadpipe. It's the second most important area to inspect.

What you're looking for:

• Smooth, undamaged taper
• No visible file marks, sanding marks, or grinding
• No visible dents or bending
• Plating reasonably intact

Why the shank modification matters: Some players file down the shank to push the mouthpiece deeper into the leadpipe — usually to try to adjust intonation. A filed shank changes the mouthpiece receiver fit, potentially making the mouthpiece too deep or inconsistently seated. It cannot be undone.

How to spot shank modification: Look at the shank under good light. File marks appear as fine parallel scratches in a pattern around the taper, usually concentrated in the area that contacts the receiver most closely. Sanding marks are more diffuse and may have changed the texture of the metal surface.

If you see modification marks on the shank, reject the mouthpiece. You don't know what the original geometry was, you don't know what the intonation will do in your instrument, and you can't reverse the modification.

4. The cup interior

Look inside the cup under good light.

What you're looking for:

• No visible denting of the cup walls
• No debris or material build-up in the throat (the small hole at the bottom of the cup)
• Consistent smooth surface on the cup interior

A dented cup wall is rare but possible from a hard drop. A blocked or partially obstructed throat is more common — mineral deposits, old lubricant, or debris can partially close the throat over time. If the throat looks partially obstructed, the mouthpiece can likely be cleaned. If the cup walls are visibly deformed, pass on it.

5. The mouthpiece body

Pick it up, look at it from every angle. Check for:

• Any visible cracks (very rare on solid brass mouthpieces but possible on vintage pieces)
• Any significant denting of the cup body that would affect internal geometry
• That it's a real mouthpiece from the claimed manufacturer and not a counterfeit

Counterfeit note: Fake Bach mouthpieces exist, particularly at very low prices. A genuine Bach mouthpiece has clean engraving, consistent plating, and a shank that fits snugly in the receiver. If a deal seems too good — a Bach mouthpiece for $5 — it's worth being skeptical.

Where to Buy Used Mouthpieces Safely

Reverb.com

The best online marketplace for used musical instruments and accessories. Sellers have ratings and reviews. Photos are standard. Return policies exist for most sellers. Search specifically for the model you want — there's usually a good selection.

Tip: Message the seller before buying and ask specifically for close-up photos of the rim and shank if they haven't been provided. Any legitimate seller will comply.

eBay

Large selection but more variable quality and seller reliability. Use the same photo-request approach. Check seller feedback ratings carefully. Read return policies before buying.

Local music stores

Some music stores carry used mouthpieces. The advantage is that you can physically inspect the mouthpiece before buying. The disadvantage is usually a smaller selection.

Player community groups

Facebook groups, forum classifieds (TrumpetHerald has an active buy/sell section), and local brass player communities. Prices are often better than resale platforms. Quality depends on the seller. Apply the same inspection checklist.

Avoid

Very cheap mouthpieces from large general marketplaces with no photos or minimal description. If the listing doesn't show close-up rim photos and the price is dramatically below market, something is wrong.

How to Clean a Used Mouthpiece Before Playing It

Never put a used mouthpiece directly in your mouth without cleaning it first. This applies even to mouthpieces from people you know.

Basic cleaning:
1. Rinse the mouthpiece with warm water
2. Use a mouthpiece brush (a small cylindrical brush designed to fit through the cup and shank) with a small amount of mild dish soap
3. Clean the interior thoroughly — cup, throat, and shank bore
4. Rinse thoroughly with warm water
5. Dry completely before playing

Deeper cleaning for heavily used mouthpieces:
1. Soak in warm water with a small amount of dish soap for 15–30 minutes
2. Follow with the brush cleaning above
3. For mineral deposits or stubborn build-up in the throat: a very brief soak in white vinegar (5–10 minutes maximum) followed by thorough rinsing breaks down mineral deposits
4. Rinse extremely thoroughly after any vinegar treatment — vinegar is acidic and can affect plating if left in contact

What not to do:

• Don't use boiling water — it can loosen plating
• Don't use bleach or harsh chemical cleaners — they damage plating and can leave residue
• Don't use abrasive materials on the playing surface
• Don't soak for extended periods

Price Reference for Used Mouthpieces

Prices vary significantly based on condition, specific model, and seller. The ranges above are rough guides for US market pricing.

What to Do Next

Find the right model to look for:
→ Cross-Brand Comparator — identify what you're looking for before you start searching

Understand what model name you're buying:
→ Naming Decoder — decode any model name before purchasing

Make sure you need to change at all:
→ Should I Upgrade My Trumpet Mouthpiece?

Related articles: How to Choose a Trumpet Mouthpiece · Should I Upgrade My Mouthpiece? · The Mouthpiece Safari · How to Switch Trumpet Mouthpieces