38.0 mm replacement piston with two 2 mm rectangular piston rings with flank lock (FS) for the blown original Puch cylinder suitable for your X30 Velux and X30 Automat (ZA50) moped / moped.
The detailed dimensions of the piston according to the technical drawing can be found in the details. In addition, you can find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
This piston is equipped with a short piston skirt.
The piston kit contains piston pins, piston clips and piston rings.
You will find the corresponding assembly tool, piston pin locks and, if necessary, the corresponding cylinder in the accessories section.
| Nominal diameter | 38 mm |
| Ø outside piston (A) | 37.95 mm |
| Compression height (C) | 22.9 mm |
| Curvature (D) | 3.2 mm |
| Total piston height (E) | 50.1 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 2 mm |
| Ø piston pin (B) | 12 mm |
| Piston weight | 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
Material: Steel · Surface: burnished · Total length: 130 mm · Manufacturer: GPO · Number of components: 7 pcs · Area of application: (Dis)assembly tool · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Width across flats SW: 10 mm · Width across flats SW: 17 mm
23,30 EUR
Moped fans also bought
38 mm cylinder head, fan-cooled | Puch X30 NG-2AH, NG-2A, N-2A, DS, MV
Material: Aluminum · Area of application: Standard · Ø cylinder: 38 mm · Ø outside: 90 mm · Ø screw holder: 6.4 mm · Number of fixing points: 4 pcs · Height: 35 mm · Hole pattern [mm]: 44 x 44 · Candle thread: short · Decompressor: No
46,80 EUR
WEKEM 2K liquid metal
Manufacturer: WEKEM · Material to be used: Aluminum · Material to be used: Ceramics · Material to be used: Metal · Material to be used: Steel · Material to be used: Wood · Type of application: 2K · Contents [ml]: 24 ml · Area of application: Chemistry · Hazard warning: Causes serious eye irritation · Hazard warning: Causes skin irritation · Hazard warning: Harmful to aquatic organisms (with long-term effects) · Hazard warning: May cause allergic skin reactions · Hazard warning: Toxic to aquatic organisms (with long-term effects) · Color: gray · Signal word: Attention · Hazard pictogram: GHS07 - Caution dangerous · Hazard pictogram: GHS09 - Hazardous to the aquatic environment · Temperature resistance (min.): -20 - 80 °C · Alignment time: 240 sec
23,30 EUR
466,00 EUR/kg
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Number of components: 4 pcs · Ø outlet inside: 22 mm · Ø cylinder: 38 mm · Hole spacing inlet: 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes · Area of application: Standard
10,40 EUR
GPO 38 mm original cylinder fan-cooled 12 mm KoBo | Velux/NG-2AH
Manufacturer: GPO · Material: Gray cast iron · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 38 mm · Hole spacing inlet: 32 mm · Thread inlet: M6x1 (standard thread) · Hole spacing outlet: 42 mm · Outlet type: straight · Ø piston pin (B): 12 mm · Number of fixing points: 4 pcs · Thread outlet: M6x1 (standard thread) · Area of application: Standard · Hole pattern [mm]: 44 x 44 · Camouflaged: No
128,80 EUR
146,40 EUR
swiing® revival shim set crankshaft L17 | Puch Z50
Manufacturer: swiing® revival parts · Surface: blank / oiled · Material: Steel · 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 · Ø inside: 17.1 mm · Ø outside: 23.8 mm
10,40 EUR
swiing® revival stud bolt set M6x30 (strength 10.9) galvanized
Diameter: 6 mm · Manufacturer: swiing® revival parts · Surface: galvanized (blue) · Material: Steel · Drive: External hexagon · Total length: 30 mm · Thread type: M6x1 (standard thread) · Strength class: 8 · Strength class: 10.9 · Width across flats SW: 10 mm · Thread length: 12 mm
12,50 EUR
Collection only possible with online purchase and appointment.
