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
Surface: burnished · Manufacturer: GPO · Material: Steel · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Area of application: (Dis)assembly tool · Number of components: 7 pcs · Total length: 130 mm · Width across flats SW: 10 mm · Width across flats SW: 17 mm
CHF 19.90
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 · Height: 35 mm · Ø outside: 90 mm · Ø cylinder: 38 mm · Candle thread: short · Number of fixing points: 4 pcs · Ø screw holder: 6.4 mm · Hole pattern [mm]: 44 x 44 · Decompressor: No
CHF 39.90
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 · Area of application: Chemistry · Color: gray · Contents [ml]: 24 ml · 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) · Signal word: Attention · Hazard pictogram: GHS07 - Caution dangerous · Hazard pictogram: GHS09 - Hazardous to the aquatic environment · Type of application: 2K · Alignment time: 240 sec · Temperature resistance (min.): -20 - 80 °C
CHF 19.90
CHF 398.00/kg
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Area of application: Standard · 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
CHF 8.90
GPO 38 mm original cylinder fan-cooled 12 mm KoBo | Velux/NG-2AH
Nominal diameter: 38 mm · Manufacturer: GPO · Material: Gray cast iron · Area of application: Standard · 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
CHF 124.90
swiing® revival stud bolt set M6x30 (strength 10.9) galvanized
Manufacturer: swiing® revival parts · Strength class: 8 · Strength class: 10.9 · Material: Steel · Thread type: M6x1 (standard thread) · Diameter: 6 mm · Width across flats SW: 10 mm · Total length: 30 mm · Surface: galvanized (blue) · Drive: External hexagon · Thread length: 12 mm
CHF 10.70
Collection only possible with online purchase and appointment.
