Suunto Compass bellow replacement kit


Bellow repair kit

Out of stock

SKU: bellow-kit-v5 Category:


Kit for repairing broken bellow for Suunto Compass (model F-116/Sail), includes:

  • Bellow made of polyutethane (PU)
  • Retainer ring
  • Stainless steel screw and nut
  • Disassembly tool

For installation instructions see Suunto marine compass repair

Additional information

Weight 0,038 g
Dimensions 100 × 100 × 25 mm


  1. Hello Ralph, I have two suunto compass, with bellow broken.
    I need two suunto compass bellow replacement kid.

    Can you help me ?

    I am from Andorra

  2. my suunto compass is of wall mounted type, but the dimensions of the broken diafragm bellows are similar. My cup is somewhat deeper, but your design would fit anyway.
    I would only need the PU cup.
    Can you still print one for me?

  3. Hi, I am looking for a replacement diaphragm for a B95 suunto (slightly smaller). Can you tell me what it possible? Best regards, Matthew in USA

  4. Hi, are you still supplying the repair kits? I require a kit as my suunto compass on my Bavaria 31 from 1999 is totally dry due to the membrane leaking. I am based in England. I look forward to hearing from you soon. Kind regards, John

  5. Hello Njål,

    Sorry to bother you but I have no news about the package.
    The tracking number has not given any result for a week.
    Do you know what’s going on?

    Thank you in advance for your answer


    1. Hi!

      The tracking is for some reason not updated until it arrives at the national post sorting facility. I see that the tracking was updated about an hour after your post, so hopefully you can see the updates from now on 🙂


  6. Hi
    I have a Bavaria 40 – 2001. I need a repair kit for the compass. It is
    The original equipment. Is it a Sunto 115 or 125, do you happen to know? Are they the same fitting? Please confirm you have stock.

  7. I´ve stumbled upon your work – very impressive! I have a riviera bu1 compass that seems to have the same problem, though the seal is much easier to dismount. I´ve purchased a 3d printer and some tpu filament, but it does not work at all. even if I print it as a flat surface (without the expansion body) it is not sealing at all. although it feels like a flat surface, you can blow through the material – it is like a filter – not a gasket. Do you have any hints?

    1. It’s not easy, I’ve used quite some time tuning the printer to get it right.

      First I would suggest tuning the filament multiplier really well. Depending on how soft the tpu you are using is (mine is very soft), it will deform quite a bit in the extruder making any calibration for e.g. PLA useless. When I used a titan extruder with a bowden setup, I had to use a multiplier of ~1.40. Nowadays I use a Sherpa MINI Extruder, direct feeding and a multiplier of 1.12. I used a caliper to measure the amount of filament actually fed when telling it to extrude 100mm @ printing speed, and calibrated it that way. I repeated this multiple times to get it right. Next I set the max volumetric speed at 2.5 mm^3/s. 0.15mm layer height, 3 solid layers top and bottom. Ironing on. 2 perimeters. Extra perimeter on odd layers on (superslicer has this option). I also tuned the extrusion width to fit the wall thickness in the 3d model, so I get a wall thickness of two through the whole cup. Then I ensure the seam position is set to nearest, so I get a continuous seam. I’ve recently used the function “one-loop perimeters” also, as this should in theory make the seam less of an issue. After printing I use a soldering iron to seal the seam anyway, as this is the part most susceptible to leaks.

      Of course bed needs to be level, and flat. I think I run the hot-end slightly hot, to ensure good layer adhesion.

      Hope this helps.

  8. Hi Njal,
    vielen Dank für die schnelle Lieferung. Den Kompass habe ich gleich instandgesetzt und mit “Penaten Pflege öl” befüllt. Die Reparatur war Dank des Manuals sehr einfach umzusetzen.
    Da meine X-99 noch einen zweiten Kompass besitzt hoffe ich, das dein 3D Drucker im neuen Jahr fleisig seine Arbeit aufnimmt und den shop gleich auffüllt.
    Beste Grüsse Ralf

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