
38 mm replacement piston with two rectangular piston rings with flank lock (FS) suitable for original windage-coated aluminum cylinders with nickel-silicon carbide coating (colloquially known as Nikasil) from Puch Maxi S / N, as well as Puch X30 Sport mopeds.
Also suitable for blued cast iron cylinders of Puch X30 NG-2A / NG-2AH, as well as Puch X30 Velux mopeds.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
| Manufacturer | GPO |
| Nominal diameter | 38 mm |
| Ø outside piston (A) | 37.95 mm |
| Compression height (C) | 22.7 mm |
| Curvature (D) | 3.3 mm |
| Total piston height (E) | 55 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Flank safety device (FS) |
| Ø piston pin (B) | 12 mm |
| Tolerance group | 1 |
| Weight piston kit | 74 g |
| Puch | E50 ZA50 (air-cooled) ZA50 (fan-cooled) Z50 (X30 Sport) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · Area of application: (Dis)assembly tool · Number of components: 7 pcs · Width across flats: 10 mm · Width across flats: 17 mm
EUR 24.50
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Number of components: 4 pcs · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Decompressor: Yes · Hole spacing inlet: 38 mm · Area of application: Standard
EUR 10.90
GPO gasket set cylinder original | Puch Maxi S, N / X30 NS, NL, N-2AH
Thickness: 0.3 mm · Thickness: 0.4 mm · Thickness: 1.8 mm · Number of components: 4 pcs · Manufacturer: GPO · Material: Aluminum · Material: Sealing carton · Material: Sealing paper · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Decompressor: Yes · Area of application: Standard · Hole spacing inlet: 32 - 38 mm
EUR 9.10
Explore categories from Piston
Moped fans also bought
GPO 38 mm cylinder head original | Puch Maxi S, N / X30 NS, NL, N-2AH
Material: Aluminum · Manufacturer: GPO · Surface: sandblasted · Ø cylinder: 38 mm · Candle thread: short · Height: 55 mm · Total length: 135 mm · Width: 125 mm · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Decompressor: No · Area of application: Standard
EUR 40.50
GPO sprocket 45 teeth black | Puch Maxi, Puch X30 NG-2AH
Manufacturer: GPO · Material: Steel · Surface: powder-coated · Chain pitch: 1/2" x 3/16" · Chain type: 415H · Number of teeth: 45 pcs · Color: black · Thickness: 4.5 mm · Ø bolt circle: 105.5 mm · Ø mounting hole: 6.7 mm · Cranking (offset): 8 mm · Hole spacing: 36.5 mm · Ø inside: 94 mm · Hole spacing 2: 68 mm · Number of fixing points: 6 pcs
EUR 24.50
GPO gasket set | Puch E50
Material: Aluminum · Material: Fiber · Manufacturer: GPO · Material: Sealing carton · Material: Sealing paper · Ø outlet inside: 19.9 mm · Number of components: 7 pcs · Hole spacing inlet: 32 - 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 · Decompressor: Yes · Area of application: Standard
EUR 12.20
Gas cable Ø 1.25 mm x 220 cm (cylindrical nipple) Bing
Manufacturer: Made in Germany · Material: Steel · Surface: galvanized (blue) · Ø nipple: 3 mm · Nipple length: 5 mm · Ø Stranded wire: 1.25 mm · Nipple shape: Cylinder · Cable length: 2200 mm · Number of components: 1 pcs · Area of application: Standard
EUR 2.95
GPO Piston 38 mm No. 3 | Puch
Nominal diameter: 38 mm · Manufacturer: GPO · Ø outside piston (A): 37.97 mm · Compression height (C): 22.7 mm · Curvature (D): 3.3 mm · Total piston height (E): 55 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Ø piston pin (B): 12 mm · Tolerance group: 3 · Weight piston kit: 73 g
EUR 41.70










