Gasket between cylinder base and cylinder head fits the following mopeds with Beta 521 engine:
Original spare part number: A8098
| Manufacturer | Pony | 
| Place of use | Cylinder head | 
| Reinforced | Yes | 
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) | 
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Airsal 43.5 mm cylinder kit Beta | Cilo Cross 521 / 512, Pony Cross 521, Pony GTX 521
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swiing® revival gasket set Airsal 40 mm cylinder | Beta 521 & 512
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Elring Dirko HT sealing compound gray (silicone) 70 ml permanently elastic up to 315°C
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