Detail 01
Three corks per pack
Replaces a full set on one mute. Swap all three together so the mute seats evenly.
Product detailSKU #1274319726557
Jo-RalTenor or Bass Trombone Straight Mute Cork 3-Cork Pack
Independent shopping perspective
The Korena take
A three-cork replacement set for Jo-Ral tenor and bass trombone straight mutes. Buy it when your mute rattles, slips, or sits too deep.
Strong match
Who this is for
- Reviving a straight mute that no longer grips the bell
- Players whose mute pitch has crept sharp or flat
- Keeping a spare set in the gig bag
Consider the trade-offs
When to look elsewhere
- Anyone needing an actual mute — this is corks only
- Cup, bucket, harmon or plunger mutes
- Non-Jo-Ral mutes, where cork diameter may not match
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
Fits tenor or bass trombone straight mutes
One cork size covers both horns, so you don't have to match the pack to your instrument.
Detail 03
Cork, not synthetic
Compresses over time and grips brass without scratching. Expect periodic replacement rather than a permanent fix.
Detail 04
Under ten dollars
Cheaper than replacing the mute. Worn corks are the usual reason a good mute stops working.
Final check
Know before you order
- 01Corks only — no mute, no adhesive, no tools included
- 02Confirm your mute uses cork feet, not a rubber or foam ring
- 03Old cork and glue residue must come off before the new corks seat
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How do I know my mute corks need replacing?
The mute slides too far into the bell, falls out, buzzes, or your muted pitch drifts. All three are signs the cork has compressed or crumbled.
02Do I have to replace all three corks?
Yes. Mixing a new cork with two worn ones tilts the mute in the bell, which throws off both the seal and the intonation.
03Will these work on a tenor and a bass trombone mute?
Yes. The pack is made for Jo-Ral straight mutes for either horn.
04Do these fit other brands of mute?
They're cut for Jo-Ral trombone straight mutes. Other makers use different cork sizes and spacing, so fit isn't guaranteed.
