Finding the right Braun Series 7 cassette for your shaver can be surprisingly confusing. You see two different replacement heads—the 70S and the 73S—and you’re not sure which one to choose. Buying the wrong one means wasting time and money, and nobody wants that.
This guide ends the confusion for good. We’ll show you exactly how to identify your shaver model and choose the correct replacement head, ensuring you get the perfect fit and a flawless shave every time.
Last Updated: Sep 2025 | Estimated Read Time: 5 minutes
This Guide Will Show You
The Key Difference: 70S vs. 73S Explained
The answer is simple: it all comes down to the generation of your shaver. The 70S fits older Series 7 models with a pivoting head, while the 73S is for newer models with the 360° Flex head.
They are not interchangeable. The mounting system is different, so you must buy the correct one for your shaver.
| Feature | Braun 70S Cassette (Silver) | Braun 73S Cassette (Silver) |
|---|---|---|
| Fits | Older Generation Series 7 models | Newer Generation Series 7 models (released after 2020) |
| Shaver Tech | Designed for shavers like Pulsonic, Prosonic, Active Power | Designed for shavers with the 360° Flex head technology |
| Commonly for | Models like 790cc, 760cc, 7865cc, 7899cc | Models like 7020s, 7071cc, 7085cc |
Step 1: Find Your Shaver's 4-Digit Type Number
Before you can use the chart, you need to know your shaver’s model or type number. This is the only way to be 100% certain.
Look on the body of your shaver, often under the long-hair trimmer or on the back. You will see a 4-digit number, sometimes preceded by “Type.” This is the number you need. For example, you might see “Type 790cc ” or “Type 760cc”.
Step 2: The Braun Series 7 Cassette Compatibility Chart
Now that you have your 4-digit type number, use this simple chart to find your perfect match. We’ve grouped the shavers by the head they require.
You Need the 70S Cassette If Your Shaver is:
- Braun Series 7 790cc, 790cc-3, 790cc-4, 790cc-5, 790cc-7, 795cc-3
- Braun Series 7 760cc, 760cc-3, 760cc-4, 760cc-5, 760cc-6, 760cc-7
- Braun Series 7 750cc, 750cc-3, 750cc-4, 750cc-5, 750cc-6, 750cc-7
- Braun Series 7 720, 720s-3, 720s-4, 720s-5, 720s-6, 720s-7
- Braun Series 7 730, 730s-3, 730s-4, 735s-3, 735cc-4
- Braun Series 7 7898cc, 7899cc, 7865cc, 7850cc, 7840s
- Pulsonic Models: 9565, 9566, 9581, 9585, 9591, 9781, 9782, 9785, 9791, 9795
- And all other models requiring a 70S or 70B cassette.
You Need the 73S Cassette If Your Shaver is:
Shaver replacement head 73s work best with 7120s, 7125s, 7127cs, 7171cc, 7175cc, 7185cc and 7189cc.
Compatible with all Braun Series 5,6,7 flex next generation shavers.
Compatible with Braun New Generation 7, inlcuding 7020S, 7025S, 7027cs, 7071cc, 7075cc, 7085cc, 7089cc, 7020, 7027, 7071, 7075 etc.
Compatible with Braun New Generation 6, including 6072cc, 6075cc, 6090cc, and 6177cc for the USA, and 60-N7650cc, 60-N4820cs, and 61-B4500cs for Europe and other regions. UK models include 60-B7000cc, 60-B7200cc, and 60-B7500cc.
Compatible with Braun New Generation 5, inlcuding 51-B4650cs, 51-B1500s, 51-B1200s, 51-B1000s, 51-M4500cs, 51-M1850s, 51-M1000s, and 51-R1000s
Why You MUST Replace Your Shaver Head Every 18 Months
Using a dull shaver head is bad for your skin and your shaver. Braun officially recommends a replacement every 18 months for good reasons:
- Peak Performance: Over 18 months, your shaver cuts approximately 6 million hairs. The cutting parts inevitably wear down. A new Braun Series 7 cassette restores your shaver to 100% performance.
- Less Irritation: A dull foil and cutter pulls at hairs instead of cutting them cleanly, leading to redness, razor burn, and discomfort.
- Better Hygiene: Micro-debris and bacteria can build up in the cutter block over time. Replacing it is the most hygienic option.
No, you cannot. The physical mounting mechanism is different to accommodate the 360° Flex head on newer models. They are not cross-compatible. You must buy the specific cassette designed for your shaver's type number.
The 70S is exclusively for the Series 7. The 92S/94S cassettes are for the top-of-the-line Series 9 shavers. They have an extra cutting element and are completely different in shape and size. They are not interchangeable.
For shavers without a Clean&Charge station, eject the cassette and tap it gently on a flat surface. Use the included brush to clean the inner area of the shaver head. For a deep clean, you can rinse the cassette under hot running water. Let it dry completely before reattaching.
Yes, the original Braun 70S is a silver-colored cassette. The Braun 73S is also silver. While third-party replacements may come in different colors, the genuine Braun parts have a consistent appearance. Always match your replacement based on the model/type number.
