Detail 01
4C facing
Medium tip opening. Takes less air pressure to start a note, so response is easy at soft volumes.
Product detailSKU #1274115035034
Yamaha4C Bb Clarinet Mouthpiece
Sale
1/5
Independent shopping perspective
The Korena take
Yamaha's standard 4C clarinet mouthpiece. A medium facing replacement for the stock piece that comes on most student clarinets.
Strong match
Who this is for
- Beginners replacing an unmarked factory mouthpiece
- School band players needing a consistent, durable piece
- Doublers wanting a predictable backup mouthpiece
Consider the trade-offs
When to look elsewhere
- Advanced players chasing a specific dark or bright voice
- Anyone already on a hand-finished professional mouthpiece
- Bass or Eb clarinet players — this is Bb only
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Bb clarinet fit
Sized for the standard soprano Bb clarinet barrel. It will not seat correctly on Eb, alto, or bass clarinet.
Detail 03
Yamaha standard series
Machine-made to one spec, so a replacement years later plays the same as this one.
Detail 04
$55 price point
Sits above the throwaway piece bundled with rental horns and below step-up hard rubber mouthpieces.
Final check
Know before you order
- 01No ligature or cap included — reuse yours or buy them separately
- 02No reed included; 2.5 strength is the usual starting point
- 03Check your current cork thickness — a swollen cork needs sanding to seat
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does this come with a ligature?
No. The mouthpiece is sold on its own. Your existing ligature and cap will fit as long as they're for a standard Bb clarinet mouthpiece.
02What reed strength works with a 4C?
Most players start at 2.5. If notes choke or feel stuffy, drop to 2. If the tone spreads and goes thin, move up to 3.
03Will this fit a bass clarinet?
No. This is cut for the Bb soprano clarinet. Bass clarinet mouthpieces are considerably larger and won't interchange.
04Is this an upgrade over a rental horn's mouthpiece?
For most rental instruments, yes. Stock mouthpieces are often unbranded and inconsistent. This gives you a known, repeatable facing.
