
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 dimensioning 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.
| Nominal diameter | 38 mm |
| Manufacturer | GPO |
| Ø outside piston (A) | 37.96 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 | 2 |
| Weight piston kit | 79 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
Number of components: 7 pcs · Manufacturer: GPO · Area of application: (Dis)assembly tool · Material: Steel · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · 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 · Area of application: Standard · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Number of components: 4 pcs · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Decompressor: Yes · Hole spacing inlet: 38 mm
EUR 10.90
GPO gasket set cylinder original | Puch Maxi S, N / X30 NS, NL, N-2AH
Manufacturer: GPO · Material: Aluminum · Material: Sealing carton · Material: Sealing paper · Area of application: Standard · Number of components: 4 pcs · Ø cylinder: 38 mm · Hole spacing inlet: 32 - 38 mm · Thickness: 0.3 mm · Thickness: 0.4 mm · Thickness: 1.8 mm · Ø outlet inside: 22 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes
EUR 9.10
Explore categories from Piston
Moped fans also bought
GPO gasket set | Puch E50
Manufacturer: GPO · Area of application: Standard · Material: Aluminum · Material: Fiber · Material: Sealing carton · Material: Sealing paper · Ø outlet inside: 19.9 mm · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Number of components: 7 pcs · Decompressor: Yes · Hole spacing inlet: 32 - 38 mm
EUR 12.20
Gas cable Ø 1.25 mm x 220 cm (cylindrical nipple) Bing
Ø nipple: 3 mm · Nipple length: 5 mm · Manufacturer: Made in Germany · Material: Steel · Surface: galvanized (blue) · Ø Stranded wire: 1.25 mm · Cable length: 2200 mm · Nipple shape: Cylinder · Number of components: 1 pcs · Area of application: Standard
EUR 2.95
swiing® revival bottom bracket bushing nylon | Puch Maxi, X30 Sport, Velux, NG-2AH
Manufacturer: swiing® revival parts · Material: Nylon · Color: black · Bearing type: Plain bearing · Ø inside: 16.2 mm · Total length: 19 mm · Ø outside: 20.2 mm · Ø Bundle: 24.1 mm · Puch OEM number: 349.1.42.005.1
EUR 3.05
Inner cable set automatic | Puch E50
Manufacturer: Made in Germany · Material: Steel · Quantity: 4 pcs · Ø Stranded wire: 1.25 mm · Ø Stranded wire: 1.5 mm · Ø Stranded wire: 1.8 mm · Total length: 1600 mm · Total length: 2200 mm · Nipple shape: Barrel (transverse) · Nipple shape: Cylinder · Nipple shape: Pears
EUR 12.20
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Area of application: Standard · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Number of components: 4 pcs · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Decompressor: Yes · Hole spacing inlet: 38 mm
EUR 10.90
38 mm cylinder kit fan-cooled 12 mm KoBo | Puch Velux, NG-2AH
Nominal diameter: 38 mm · Material: Gray cast iron · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Camouflaged: No · Area of application: Tuning
EUR 104.50









