Klier Flugelhorn Mouthpiece Exclusive 4D

Silver-Plated Mouthpiece for Flugelhorn from the Exclusive Series!
  • Bore: 3.6 mm
  • Rim Diameter: 27.4 mm
  • Cup Diameter: 17.0 mm
  • Cup Shape: medium
  • Shank Size (German): 10.0 mm
  • Backbore: A2
Variants (3)
Klier Flugelhorn Mouthpiece Exclusive 4F
Klier Flugelhorn Mouthpiece Exclusive 4E
Klier Flugelhorn Mouthpiece Exclusive 4C
Klier Flugelhorn Mouthpiece Exclusive 4F
Klier Flugelhorn Mouthpiece Exclusive 4F
  • Bore: 3.6 mm
  • Rim Diameter: 27.4 mm
  • Cup Diameter: 17.0 mm
  • Cup Shape: shallow
  • Shank Size (German): 10.0 mm
  • Backbore: A2
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Klier Flugelhorn Mouthpiece Exclusive 4E
Klier Flugelhorn Mouthpiece Exclusive 4E
  • Bore: 3.6 mm
  • Rim Diameter: 27.4 mm
  • Cup Diameter: 17.0 mm
  • Cup Shape: medium-shallow
  • Shank Size (German): 10.0 mm
  • Backbore: A2
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Klier Flugelhorn Mouthpiece Exclusive 4C
Klier Flugelhorn Mouthpiece Exclusive 4C
  • Bore: 3.8 mm
  • Rim Diameter: 27.4 mm
  • Cup Diameter: 17.0 mm
  • Cup Depth: medium
  • Shank Size (German): 10.0 mm
  • Backbore: A2
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All prices include VAT
Ready for shipping

Standard Shipping
free
Delivery time 1 - 2 working days
Priority Shipping
+ 0,99
Shipping on 20.05.2026
Express Shipping
+ 5,90
Delivery on Thursday, 21.05.2026, if you order within  2 Hrs. 21 Min. 
Shipping and Delivery

Josef Klier - Highest Quality From a Master's Hand!

JK Exclusive mouthpieces stand out for their large tonal volume, pure intonation, easy response, and precisely calculated resistance in cup design and backbore, which ensures the player good endurance.

The musician's personal sound ideals and preferences can only be met with the highest possible technical precision. For that reason Klier uses computer-controlled CNC turning machines to produce their JK mouthpieces. Only this manufacturing method, with its precise positioning, allows the required serial accuracy with tolerances in the µm range (thousandths of a millimeter).

Unique in the Mouthpiece Sector

The consistent bite and cup diameter across each series, together with the exact and differentiated gradation, enable the musician to achieve any desired style without having to change embouchure. A mouthpiece series with such precise and optimal workmanship cannot be found in any other mouthpiece offering.

Mouthpieces by Josef Klier - A Sound Beginning!

Features

  • JK Exclusive Series
  • Bore: 3.6 mm
  • Rim Diameter: 27.4 mm
  • Cup Diameter: 17.0 mm
  • Cup Shape: medium
  • Backbore: A2
  • German shank size: 10.0 mm
  • Silver-plated

Scope of delivery

  • 1 x Klier Flugelhorn Mouthpiece Exclusive 3C

Suitable accessories (Not included in the delivery.)

Specification

  • Product number 00018008
  • Shaft Flugelhorn (10,0 mm)
  • Cup depth Flat
  • Colour Silver
  • Instrument Flugelhorn
  • Cup diameter 17,00

Reviews

5.0/5.0
Based On 1 ratings
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0

A verification of the ratings has taken place as follows: Only customers who are registered in our online store and have actually purchased the product from us can submit a rating for the item in the customer account.

Concerns flugelhorn mouthpiece Exclusive 4D
Review from Cordula on 11.10.2025
This rating has been translated automatically. Original language flag from
 verified purchase
The mouthpiece responds very well at both high and low pitches.
A very good product with good workmanship. I can highly recommend it.

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