Fan-cooled 38 mm cylinder kit with a 12 mm piston pin. This reproduction cylinder is equipped with a seal, which is why it can be used as an original cylinder.
Compatible with Puch X30 Velux and Puch X30 NG-2AH / NG-2A mopeds.
Note: Please observe the installation direction during assembly. The piston is installed with the arrow pointing toward the exhaust on the exhaust side.
Caution: For Velux engines, the small slot at the sealing surface must be filled with casting material to ensure the cylinder kit is airtight.
We recommend using Wekem 2K liquid metal, which can be found in the accessories section.
A good, affordable standard replacement part. GPO – GOOD PARTS ONLY.
Hole pattern [mm]: 44 x 44 · Manufacturer: GPO · Material: Gray cast iron · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 38 mm · Thread inlet: M6x1 (standard thread) · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: No · Area of application: Tuning
Nominal diameter: 38 mm · Ø outside piston (A): 37.95 mm · Ø piston pin (B): 12 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 · Weight piston kit: 74 g
| Manufacturer | GPO |
| Material | Gray cast iron |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 50 ccm |
| Crankshaft stroke | 43 mm |
| Nominal diameter | 38 mm |
| Hole spacing inlet | 32 mm |
| Ø piston pin (B) | 12 mm |
| Hole pattern [mm] | 44 x 44 |
| Thread inlet | M6x1 (standard thread) |
| Number of fixing points | 4 pcs |
| Outlet type | straight |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| Area of application | Standard |
| Puch | Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
Accessories & related products
swiing® revival stud bolt M6x106 (10.9 strength class)
Manufacturer: swiing® revival parts · Total length: 106 mm · Material: Steel · Surface: galvanized (blue) · Nominal diameter (thread): 6 mm · Thread length: 12 mm · Thread length: 20 mm · Thread type: M6x1 (standard thread) · Puch OEM number: 360.1.10.034.1
EUR 2,10
38 mm cylinder head, fan-cooled | Puch X30 NG-2AH, NG-2A, N-2A, DS, MV
Material: Aluminum · Ø cylinder: 38 mm · Height: 35 mm · Ø screw holder: 6.4 mm · Ø outside: 90 mm · Number of fixing points: 4 pcs · Area of application: Standard · Candle thread: short · Hole pattern [mm]: 44 x 44 · Decompressor: No
EUR 46,90
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 · Contents: 24 ml · Color: gray · 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 · Area of application: Chemistry · Type of application: 2K · Alignment time: 240 sec · Temperature resistance (min.): -20 - 80 °C
EUR 23,40
EUR 468,00/kg
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 · Hole spacing inlet: 38 mm · Number of components: 4 pcs · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes
EUR 10,50
Piston 38 mm (12 mm KoBo) short shirt | Puch fan-cooled
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 · Nominal diameter: 38 mm · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Ø piston pin (B): 12 mm · Piston ring height: 2 mm · Weight piston kit: 74 g
EUR 46,90
swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
Bearing type: Needle roller and cage assembly · Manufacturer: swiing® ingenious parts · Bearing cage: Silver cage · Width: 14.2 mm · Ø inside: 12 mm · Ø outside: 15 mm · Dimension needle bearing: 12/15 x 14.2 · Alternative version of the Pony OEM number: A4222 · Tomos OEM number: 035548 · Alternative version of the Sachs OEM number: 0232 157 001
EUR 14,00
Explore categories from Cylinder
Moped fans also bought
ESJOT sprocket 37 teeth 4-hole coaster black
Chain type: 415H · Ø inside: 94 mm · Thickness: 4.1 mm · Manufacturer: ESJOT · Material: Steel · Color: black · Surface: powder-coated · Chain pitch: 1/2" x 3/16" · Number of teeth: 37 pcs · Number of fixing points: 4 pcs · Ø mounting hole: 6.4 mm · Hole spacing: 74 mm · Ø bolt circle: 105.5 mm
EUR 62,30
Wheel axle set M12x1 x 165 front
Ø inside: 12.6 mm · Ø inside: 13.2 mm · Ø outside: 17.4 mm · Ø outside: 19.9 mm · Manufacturer: Quenching · Total length: 165 mm · Material: Steel · Surface: burnished · Surface: galvanized (blue) · Ø shaft: 11.9 mm · Width across flats: 19 mm · Width: 7 mm · Width: 10.2 mm · Thread length: 25 mm · Thread length: 26 mm · Width: 32 mm · Height: 9.9 mm · Shank length: 114 mm · Thread type: MF12x1 (fine pitch thread)
EUR 17,30
EUR 14,00
38 mm cylinder head, fan-cooled | Puch X30 NG-2AH, NG-2A, N-2A, DS, MV
Material: Aluminum · Ø cylinder: 38 mm · Height: 35 mm · Ø screw holder: 6.4 mm · Ø outside: 90 mm · Number of fixing points: 4 pcs · Area of application: Standard · Candle thread: short · Hole pattern [mm]: 44 x 44 · Decompressor: No
EUR 46,90
GPO piston 40 mm (12 mm KoBo) | Puch X30 Velux fan-cooled
Manufacturer: GPO · Ø outside piston (A): 39.94 mm · Compression height (C): 22.5 mm · Curvature (D): 3.4 mm · Total piston height (E): 52.5 mm · Number of piston rings (F): 2 pcs · Nominal diameter: 40 mm · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 1.5 mm · Piston ring height: 2 mm · Weight piston kit: 89 g
EUR 41,10
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 · Contents: 24 ml · Color: gray · 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 · Area of application: Chemistry · Type of application: 2K · Alignment time: 240 sec · Temperature resistance (min.): -20 - 80 °C
EUR 23,40
EUR 468,00/kg
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 · Hole spacing inlet: 38 mm · Number of components: 4 pcs · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes
EUR 10,50
Piston 38 mm (12 mm KoBo) short shirt | Puch fan-cooled
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 · Nominal diameter: 38 mm · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Ø piston pin (B): 12 mm · Piston ring height: 2 mm · Weight piston kit: 74 g
EUR 46,90
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
