Quick Answer
The Braun 340s and 340s-4 accept 21B, 32B and 32S heads. If the removed black head says 21B, use the latest black option, 32B, or choose silver 32S. ShaversHead stocks those two current versions, so a confirmed 340s owner does not need to source another 21B.
Last updated: August 3, 2026 | Author: William | Estimated reading time: 4 minutes
If the Removed Head Says 21B, Buy 32B or 32S
An old 21B marking is not a reason to postpone the replacement. Use the shaver model to confirm this path, then choose the finish you want:
| What you have | Select now | What changes |
|—|—|—|—|
| 340s / 340s-4 with old 21B | 32B | The part code changes; the frame stays black. |
| 340s / 340s-4 with old 21B | 32S | The frame changes from black to silver. |
| 340s / 340s-4 with 32B or 32S | Either current version | Only the chosen black or silver appearance changes. |
The table applies to the complete 340s and 340s-4 references. It is not a blanket substitution rule for every Braun shaver whose number begins with 3.
What Changed From 21B to 32B?
The buying code changed, but the color choice did not. 21B is the older black head and 32B is the latest black option for these shavers. It is the present-day selection when a 340s owner wants the frame to remain black.
Latest identifies the version ShaversHead currently offers; it is not a claim of guaranteed performance improvement. The older code remains valid for the two shavers, but it is not a current store selection.
Does Choosing Silver Change the Fit?
No. The silver version mounts on the same two confirmed shavers as the current black version. The letter printed on the removed part does not have to match the new one.
The Braun 32B vs 32S comparison covers the two finishes in detail. This page addresses the separate question created by a 340s with the older code.
Verify the Shaver, Then Verify the Offer
The label on the handle matters more than the color already attached. A previous owner may have changed the shaving unit before you received the device.
Before ordering, confirm these three points:
- The housing or rating label shows the full model 340s or 340s-4.
- The offer is for one of the two current cassettes, with the foil and cutter section supplied together.
- The seller identifies whether the item is compatible or genuine. Those descriptions concern who made the part; they do not change black versus silver.
A loose foil screen, an individual cutter or a part for another Braun series is not the purchase described here. Product photos should show the complete plastic-framed assembly.
Once the model and complete cassette format are clear, ShaversHead’s compatible Braun Series 3 replacement head page provides the current black and silver selections. These items are compatible replacements, not Braun-made or OEM parts.
If the Delivered Part Does Not Lock Onto the Shaver
Do not try to solve a poor fit by pressing on the foil. Remove the new part and place it beside the old one, with both mounting sides facing up.
| Observation | Action |
|---|---|
| The mounting shapes differ | Recheck the model label and the supplied code. Photograph both parts for the seller. |
| Both shapes match but one side remains raised | Clear trapped hair, then lower the rigid frame evenly rather than hooking in one side. |
| The replacement frame is warped or cracked | Stop. Request a seller inspection or replacement. |
| The head mounts but comes loose | Do not use the shaver until the seller verifies the part. |
A confirmed part family does not rule out shipping damage, wrong packaging or debris on the mount. The frame should sit level and remain secure before the shaver is switched on.
FAQ
Does 32S fit the Braun 340s-4?
Yes. A 340s-4 accepts silver 32S as well as the two black alternatives covered here.
My 340s still has a 21B. Is that the wrong head?
No. 21B is an older compatible black head for the 340s and 340s-4. When it needs replacement, ShaversHead’s present choices are black 32B and silver 32S.
Are ShaversHead 32B and 32S heads genuine Braun parts?
No. They are third-party compatible heads rather than genuine Braun or OEM parts. The Braun references identify the shavers they are intended to fit.
