Athena piston set 38mm Tol. B 50ccm for Hercules Prima M 2 3 4 5 Optima Jogging Hobbyrider / Sachs 504 505
- Manufacturer: Athena
- Item no: 073902.B
- Manufacturer no.: 073902.B
- EAN: 4251048883407
Item data
| Product type: | Piston set |
| Dimension B (compression height): | 28 mm |
| Dimension F (piston skirt width inlet side): | 34 mm |
| Dimension I (piston skirt length outlet side): | 39 mm |
| Tuning & Styling Part: | Yes |
| Piston ring (top) Width: | 1.65 mm |
| Vintage part: | Yes |
| Piston ring (top) Shape: | B (groove for center locking pin) |
| Cylinder bores: | 38 mm |
| Dimension C (piston height): | 50 mm |
| Dimension J (max. needle bearing width): | 14.5 mm |
| Piston ring (top) Dimension: | 38 x 1.5 mm |
| Piston ring (top) Profile: | Rectangular ring |
| Dimension C + D (total height): | 53 mm |
| Dimension G (piston skirt length inlet side): | 35.5 mm |
| OE/OEM reference number(s): | Athena 073902.B |
| Piston ring (bottom) Width: | 1.65 mm |
| ATTENTION!: | TUNING: Not permitted in the area of the StVZO! |
| GTIN: | 4251048883407 |
| Piston ring (bottom) Shape: | B (groove for center locking pin) |
| Dimension A (piston diameter): | 37.95 mm |
| Bolt diameter: | 12 mm |
| Piston ring (bottom) Dimension: | 38 x 1.5 mm |
| Dimension D (curvature): | 3 mm |
| Note: | Piston ring chrome-plated / With two 4.5x10mm piston window bores! |
| Piston ring (bottom) Profile: | Rectangular ring |
| Dimension H (piston skirt width outlet side): | 30 mm |
| Scope of delivery: | Piston, Piston rings, Piston pin, Piston clips |
| Bolt length: | 31 mm |
| Dimension E (piston pin diameter): | 12 mm |
| Tolerance size: | B (37.95mm) |
| Color: | Silver |
| Piston diameter: | 38 mm |
| Engine type: | 2-stroke |
| Scope of delivery: | 1x piston set |
| Manufacturer number: | 073902.B |
| Country and region of manufacture: | Italy |
| Type of motorcycle: | Moped & Mokick |
| Offer package: | Yes |
| Description of the package content: | Piston + piston rings + piston pin + piston clips |
| Manufacturer warranty: | 2 years |
| Material: | Aluminum alloy |
| suitable for: | 50 cc |
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Athena S.p.A.
Via delle Albere 13
36045 Alonte VI
Telephone number: +39 0444 727272
Web page https://www.athena.eu/en-de/
Email: privacy@athena.eu
| Product type | Piston set |
|---|---|
| Dimension B (compression height) | 28 mm |
| Dimension F (piston skirt width inlet side) | 34 mm |
| Dimension I (piston skirt length outlet side) | 39 mm |
| Tuning & Styling Part | Yes |
| Piston ring (top) Width | 1.65 mm |
| Vintage part | Yes |
| Piston ring (top) Shape | B (groove for center locking pin) |
| Cylinder bores | 38 mm |
| Dimension C (piston height) | 50 mm |
| Dimension J (max. needle bearing width) | 14.5 mm |
| Piston ring (top) Dimension | 38 x 1.5 mm |
| Piston ring (top) Profile | Rectangular ring |
| Dimension C + D (total height) | 53 mm |
| Dimension G (piston skirt length inlet side) | 35.5 mm |
| OE/OEM reference number(s) | Athena 073902.B |
| Piston ring (bottom) Width | 1.65 mm |
| ATTENTION! | TUNING: Not permitted in the area of the StVZO! |
| GTIN | 4251048883407 |
| Piston ring (bottom) Shape | B (groove for center locking pin) |
| Dimension A (piston diameter) | 37.95 mm |
| Bolt diameter | 12 mm |
| Piston ring (bottom) Dimension | 38 x 1.5 mm |
|---|---|
| Dimension D (curvature) | 3 mm |
| Note | Piston ring chrome-plated / With two 4.5x10mm piston window bores! |
| Piston ring (bottom) Profile | Rectangular ring |
| Dimension H (piston skirt width outlet side) | 30 mm |
| Scope of delivery | Piston, Piston rings, Piston pin, Piston clips |
| Bolt length | 31 mm |
| Dimension E (piston pin diameter) | 12 mm |
| Tolerance size | B (37.95mm) |
| Color | Silver |
| Piston diameter | 38 mm |
| Engine type | 2-stroke |
| Scope of delivery | 1x piston set |
| Manufacturer number | 073902.B |
| Country and region of manufacture | Italy |
| Type of motorcycle | Moped & Mokick |
| Offer package | Yes |
| Description of the package content | Piston + piston rings + piston pin + piston clips |
| Manufacturer warranty | 2 years |
| Material | Aluminum alloy |
| suitable for | 50 cc |
Athena - High-quality gaskets, cylinder kits and tuning parts from Italy
Athena is a leading global manufacturer of gaskets, cylinder kits and tuning parts for motorcycles, scooters, mopeds and quads. The brand with Italian roots has stood for quality, innovation and precision for decades. Whether for regular maintenance, reliable repairs or performance-oriented tuning - Athena offers the right products for ambitious mechanics and professional workshops.
Comprehensive range for every application
Athena's portfolio includes gasket sets for engines, transmissions and chassis, high-performance cylinder kits made of aluminum or cast iron, pistons, cylinder heads and various accessories. The range is supplemented by tuning parts that have been specially developed for greater performance and durability. With a wide model coverage, Athena is the right choice for numerous two-wheeler types.
Italian quality and innovation
Athena combines many years of experience with modern production technology. CNC machining, special coatings and strict quality controls ensure that every product meets the highest standards. Athena is a world leader in the field of gaskets in particular and supplies numerous vehicle manufacturers with OEM quality.
The advantages of Athena at a glance
- ✔️ Wide range - gasket sets, cylinder kits, pistons, cylinder heads and more
- ✔️ OEM quality - frequently used by vehicle manufacturers in the original equipment sector
- ✔️ Precise manufacturing - exact fit and easy installation
- ✔️ Performance enhancement - tuning parts for noticeably more performance
- ✔️ Italian brand quality with decades of experience
Conclusion: Athena stands for quality and performance
Whether for everyday use, repairs or tuning projects - Athena offers high-quality products that impress riders worldwide. With a combination of precision, durability and innovative technology, the brand has developed into one of the most important suppliers in the two-wheeler parts sector.
With Athena, you are investing in spare parts and tuning components that perfectly combine performance, safety and durability.