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Yamaha SL-51BS Small Shank Trombone Mouthpiece

Small Shank Trombone Mouthpiece with 51 Rim, Medium-shallow Cup, 25.23mm Inner Diameter, and 6.92mm Throat
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Item ID: YACSTbn51B
Yamaha SL-51BS Small Shank Trombone Mouthpiece
$10.04 Price Drop!
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Price:$64 and 95 cents
Save $10.04 (13%) Original price, crossed out: $74 and 99 cents
$11.00 suggested monthly payments with 6 month financing‡

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While this isn't an item we normally stock, we can still get it to you as fast as possible due to our great relationship with Yamaha. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated May 2026.

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Yamaha SL-51BS Small Shank Trombone Mouthpiece
We Can Get It!
Price:$64 and 95 cents
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Powerful Projection for Ensembles and Orchestras

Yamaha’s SL-51BS Small Shank Trombone Mouthpiece offers weighty projection and a well-blending tone to trombone players. It’s built on the same small shank platform as the SL-51S mouthpiece with a modified cup depth. The SL51BS mouthpiece has a size 51 cup with a relatively shallow depth to help players easily reach the upper register. Meanwhile, the 6.92-millimeter throat provides broad projection. While the SL-51BS mouthpiece works great in ensembles, Yamaha also tells Sweetwater that this mouthpiece is a popular choice among orchestral euphonium players. Choose a Yamaha SL-51BS trombone mouthpiece and treat yourself to a comfortable playing feel and a powerful sound.

Yamaha SL-51BS Small Shank Trombone Mouthpiece Features:

  • Medium-shallow cup depth makes it ideal for
  • Large inner rim diameter feels comfortable on the embouchure
  • Small shank design for use with standard tenor trombones
  • Also compatible with small-bore euphoniums
  • Ideal for players in search of a powerful, well-blending sound
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Tech Specs

  • Instrument: Trombone, Euphonium
  • Material: Brass
  • Size: 51B
  • Cup Diameter: 0.993" (25.23mm)
  • Cup Depth: Medium Shallow
  • Throat: 0.272" (6.92mm)
  • Shank: Small
  • Manufacturer Part Number: YAC SL51B

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