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Yamaha Large Shank Trombone Mouthpiece - 51B

Large Shank Trombone Mouthpiece with 51B Cup, Shallow Depth, 25.23mm Cup Diameter, and 6.92mm Throat
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Item ID: YACLTbn51B
Yamaha Large Shank Trombone Mouthpiece - 51B
Price:$74 and 99 cents
$13.00 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 Large Shank Trombone Mouthpiece - 51B
We Can Get It Fast!
Price:$74 and 99 cents
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Rich, Textured Tone

It is no surprise that Yamaha mouthpieces punch well above their modest price tags. This model, the SL-51B Large Shank Trombone Mouthpiece, is no exception. It comes equipped with a 51-size cup that reaches an expansive 25.23mm inner diameter. The SL-51B has a wider backbore, which lessens brightness, giving way to a rich, velvety low end. Load it into your trombone, and you’ll be rewarded with a darker sound ideal for symphonic work. Yamaha also tells us that the SL-51B is equally effective as a large-bore euphonium mouthpiece. Yamaha mouthpieces are found in trombone cases worldwide — you can join the legion of other Yamaha players by calling your Sweetwater Sales Engineer and ordering an SL-51B Trombone Mouthpiece today.

Yamaha SL-51B Large Shank Trombone Mouthpiece Features:

  • Shallow cup depth and large volume are ideal for low-register playing
  • Large shank design for use with large bore tenor or bass trombones
  • Also compatible with euphoniums
  • Built for players in search of a dark, weighty tone
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Tech Specs

  • Instrument: Trombone
  • Material: Brass
  • Size: 51B
  • Cup Diameter: 0.993" (25.23mm)
  • Cup Depth: Shallow
  • Throat: 0.272" (6.92mm)
  • Shank: Large
  • Manufacturer Part Number: YAC SLL51B

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