
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
Manufacturer: GPO · 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 · Area of application: (Dis)assembly tool · Number of components: 7 pcs
EUR 24.40
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Area of application: Standard · Number of components: 4 pcs · Hole spacing inlet: 38 mm · Decompressor: Yes · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 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 · Ø cylinder: 38 mm · Number of components: 4 pcs · Thickness: 0.3 mm · Thickness: 0.4 mm · Thickness: 1.8 mm · Ø outlet inside: 22 mm · Hole spacing inlet: 32 - 38 mm · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Decompressor: Yes
EUR 9.10
Explore categories from Piston
Moped fans also bought
GPO gasket set | Puch E50
Manufacturer: GPO · Material: Aluminum · Material: Fiber · Material: Sealing carton · Material: Sealing paper · Area of application: Standard · Number of components: 7 pcs · Ø outlet inside: 19.9 mm · Hole spacing inlet: 32 - 38 mm · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Decompressor: Yes
EUR 12.10
Gas cable Ø 1.25 mm x 220 cm (cylindrical nipple) Bing
Ø Stranded wire: 1.25 mm · Nipple shape: Cylinder · Ø nipple: 3 mm · Nipple length: 5 mm · Manufacturer: Made in Germany · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Number of components: 1 pcs · Cable length: 2200 mm
EUR 2.95
swiing® revival bottom bracket bushing nylon | Puch Maxi, X30 Sport, Velux, NG-2AH
Bearing type: Plain bearing · Manufacturer: swiing® revival parts · Material: Nylon · Color: black · 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
swiing® revival stud bolt set M6 x 106 | Puch
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 5.9 mm · Total length: 106 mm · Drive: External hexagon · Width across flats: 10 mm · Thread type: M6x1 (standard thread) · Thread length: 13 mm · Thread length: 18.5 mm · Alternative version of the Puch OEM number: 360.1.10.034.1
EUR 9.10
Not in stock
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Area of application: Standard · Number of components: 4 pcs · Hole spacing inlet: 38 mm · Decompressor: Yes · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm
EUR 10.90
swiing® revival spacer set crankshaft L17 | Puch Z50
Manufacturer: swiing® revival parts · Material: Steel · Surface: blank / oiled · Ø inside: 17.1 mm · Ø outside: 23.8 mm · Nominal diameter inside: 17 mm · Thickness: 0.1 mm · Thickness: 0.15 mm · Thickness: 0.2 mm · Thickness: 0.25 mm · Thickness: 0.3 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 104.10










