SKU: 15985688528

Bach 3421 Classic 1 Flugelhorn Mouthpiece in Silver Plate

Sale price$58.50 Regular price$65.00
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Description

Bach 3421 Classic 1 Flugelhorn Mouthpiece in Silver PlateBach 3421 Classic 1 Flugelhorn Mouthpiece Overview The Bach 3421 Classic 1 Flugelhorn Mouthpiece is a genuine Vincent Bach flugelhorn mouthpiece designed to support centered intonation, consistent response across registers, and a rich, uniform timbre, finished in silver plate. Bach Classic 1 Flugelhorn Mouthpiece Specifications Series: Classic Model: 3421 Cup: 1 (Deep) Cup Diameter: 17. 5 mm Rim Shape: Medium Thin Rim Backbore: #22 Finish: Silver

Bach 3421 Classic 1 Flugelhorn Mouthpiece Overview

The Bach 3421 Classic 1 Flugelhorn Mouthpiece is a genuine Vincent Bach flugelhorn mouthpiece designed to support centered intonation, consistent response across registers, and a rich, uniform timbre, finished in silver plate. 

Bach Classic 1 Flugelhorn Mouthpiece Specifications

  • Series: Classic
  • Model: 3421
  • Cup: 1 (Deep)
  • Cup Diameter: 17.5 mm
  • Rim Shape: Medium Thin Rim
  • Backbore: #22
  • Finish: Silver Plate

Condition 

Brand new in original manufacturer’s packaging

Who the 3421 Classic 1 Flugelhorn Mouthpiece Is For

The Bach 3421 Classic 1 is a deep-cup flugelhorn mouthpiece designed for players who want a larger, more open feel and a full, clear flugelhorn sound. With its extra-large cup profile and #22 backbore, it is commonly chosen by musicians seeking a rich, broad tone while maintaining stable intonation and dependable response throughout the range.

This model is well-suited to serious students, advancing players, and professionals who prefer a substantial cup volume and a medium-thin rim, including players with a thin, robust embouchure who want added depth and tonal breadth typical of traditional flugelhorn playing.

Common Questions about the Bach 3421

Is the Bach 3421 Classic 1 a good choice for professional flugelhorn use?

Yes. The 3421 Classic 1 is a standard, widely used Vincent Bach flugelhorn mouthpiece design, selected by many professionals for its deep cup feel, consistent response, and full flugelhorn tone.

What does the deep 1 cup and #22 backbore do for sound and feel?

The deep 1 cup increases cup volume, which typically supports a darker, broader flugelhorn sound. The #22 backbore is designed to keep the tone rich and clear while maintaining a stable playing feel.

Who is the typical user of a mouthpiece with a thin rim?

Players who use thin rim flugelhorn mouthpieces include lead trumpet doublers, orchestral musicians who require upper-register agility, and musicians with larger, fleshier lips

We are proud to be an authorized Bach dealer

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 15985688528

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4.4 ★★★★★
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J
Verified Purchase
Juan Pena Haddock
Lake Worth, US
★★★★★ 5
Works well
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
S
Verified Purchase
St. Paul Girl
Grantham, US
★★★★★ 5
what a difference !
Note: there are no English instructions. I wanted this cleaning agent to disperse throughout the nooks and crannies of the engine, so about ten minutes before arriving at the mechanic's shop for my oil change appointment, I pulled the car over and poured this into the engine, then drove it the rest of the way there. The mechanic reported lots of sludge drained out with the oil. The engine seems to perform and sound better, as if it's not working as hard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
A
Verified Purchase
Andres Moreno
New York, US
★★★★★ 4
Buen producto
Buen producto, limpia perfectamente el motor interno y se libera la suciedad en el cambio de aceite. no use todo el contenido, creo que es bueno usarlo en 2 cambios de aceite para una mayor eficiencia.
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Reviewed in the United States on March 29, 2026
L
Verified Purchase
Lee Nunn
Pawtucket, US
★★★★★ 5
Great will use it over and over again
I will use this in every car I own from now. Cleaned it real well did exactly what it said so and my truck runs a lot better definitely can tell the difference.. it was work the extra oil and work. The bottle I bought came with instructions in English, which made it easy for me. The quality of it is light brake cleaner, but meant for engines and it ran great very easy to use this pour in.
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Reviewed in the United States on October 19, 2025
B
Verified Purchase
Beni
Lake Worth, US
★★★★★ 5
Does its job.
Always a go to before oil changes. Helps remove some extra sludge/deposits. DO NOT DRIVE OR REV THE VEHICLE WHEN USNG THE PRODUCT, only idle for 10-15 min. Ive seen reviews where people drove with it potentially ruining the engine.
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Reviewed in the United States on March 26, 2026

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