Forged Wössner high-performance piston for the 47 mm Gilardoni italkit Puch cylinder kit, when operated with a housing diaphragm inlet (GME).
Please note: This piston cannot be used with conventional Gilardoni italkit cylinders that are operated with a cylinder diaphragm inlet (ZME).
GME forged piston developed by MBR, featuring a 1 mm rectangular piston ring with internal locking (IS), which is very commonly used in the Mofacross and Mofacup scenes.
Optimal material composition, a flow-optimized shape, and generously sized lubrication pockets above the piston pin characterize this high-quality racing piston.
You can find the detailed dimensions of the piston according to the technical drawing in the details section. You can also find information about common piston rings, their clearances, and retaining types in the legend accompanying the images.
The molybdenum coating, when combined with oil, provides technologically advanced wear protection with excellent sliding properties.
Recommended piston size (coating corresponds to +0.01 mm to +0.02 mm):
Gilardoni italkit Cylinder A (47.00 mm): 46.94 mm piston (in exceptional cases, e.g., when using ASPEN: 46.93 mm piston)
Gilardoni italkit Cylinder B (47.01 mm): 46.95 mm piston
Gilardoni italkit Cylinder C (47.02 mm): 46.96 mm piston
Gilardoni italkit Cylinder D (47.03 mm): 46.97 mm piston
Piston rings, piston pins, and piston pin retainers are included in the package.
You can find compatible components such as cylinder kits, needle bearings, lift plates, carburetors, air filters, etc., in the accessories section.
A quality product from the German manufacturer Wössner.
| Nominal diameter | 47 mm |
| Manufacturer | Wössner, MBR |
| Surface | molybdenum-coated |
| Ø outside piston (A) | 46.94 mm |
| Compression height (C) | 21.5 mm |
| Curvature (D) | 2.63 mm |
| Total piston height (E) | 48.15 mm |
| Number of piston rings (F) | 1 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1 mm |
| Ø piston pin (B) | 12 mm |
| Weight piston kit | 97 g |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Accessories & related products
HOMOET "P8" Exhaust, 28 mm, Polished (Angled Outlet) | Puch Maxi, X30
Manufacturer: HOMOET · Ø outside: 88 mm · Material: Steel · Color: black · Surface: varnished · Ø Internal connection: 25 mm · Ø Silencer: 50 mm · Total length: 915 mm · Number of fixing points: 1 pcs · Mounting type: Welded lug · Ø Flame tube outside: 28 mm · Exhaust type: Cone / double cone · Flame tube attachment: Flange
338,30 EUR
Not in stock
swiing® ingenious intake manifold Gilardoni italkit Inox
Manufacturer: swiing® ingenious parts · Ø inside: 21 mm · Material: Aluminum · Area of application: Tuning · Ø External connection: 24 mm · Number of fixing points: 4 pcs · Mounting type: Screws · Total length: 80 mm · Height flange center hole: 42.5 mm · Total height: 55 mm · Hole pattern [mm]: 60 x 35 · Camouflaged: No
79,20 EUR
Wössner (MBR) Piston 46.94 mm Gilardoni italkit | Puch
Nominal diameter: 47 mm · Manufacturer: MBR · Manufacturer: Wössner · Surface: molybdenum-coated · Ø outside piston (A): 46.94 mm · Compression height (C): 22 mm · Curvature (D): 2.65 mm · Total piston height (E): 48.15 mm · Number of piston rings (F): 1 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1 mm · Ø piston pin (B): 12 mm · Weight piston kit: 93 g
138,70 EUR
Explore categories from Piston
Moped fans also bought
Nos
Hot 
BERU Spark Plug Connector, 1 kΩ, Noise-Suppressed, NOS
Color: silver · Manufacturer: BERU · Material: Sheet metal (steel) · Spark plug socket: M4 · Cable available: No · Resistance: 1000 Ω · Subcategory: Spark plug connector · Suppressed: Yes · Ø cable: 5 mm · Ø cable: 7 mm · Pony OEM number: A2099 · Sachs OEM no.: 0265 100 00
11,60 EUR
swiing® revival gasket set Z50 engine | Puch X30 NS / NL
Manufacturer: swiing® revival parts · Number of components: 10 pcs · Material: Sealing paper · Area of application: Standard · Ø outlet inside: 22 mm · Hole spacing inlet: 32 - 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44
23,20 EUR
Hot
swiing® revival bottom bracket bushing nylon | Puch Maxi, X30 Sport, Velux, NG-2AH
Bearing type: Plain bearing · Color: black · Manufacturer: swiing® revival parts · Ø inside: 16.2 mm · Ø outside: 20.2 mm · Total length: 19 mm · Material: Nylon · Ø Bundle: 24.1 mm · Puch OEM number: 349.1.42.005.1
2,90 EUR
Gilardoni italkit 47 mm Cylinder Kit (without head) | Puch E50 / Z50 / ZA50
Nominal diameter: 47 mm · Manufacturer: Gilardoni italkit · Material: Aluminum · Area of application: Tuning · Displacement: 75 ccm · Surface: sandblasted · Crankshaft stroke: 43 mm · Ø cylinder neck: 51 mm · Ø outlet inside: 26.5 mm · Ø Inlet inside: 18.3 mm · Number of fixing points: 4 pcs · Inlet window: 38.5 x 25.8 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 35.5 mm · Hole spacing inlet: 60 mm · Decompressor: No · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Camouflaged: No
244,90 EUR
Not in stock
MBR cover diaphragm inlet Gilardoni italkit | Puch
Manufacturer: MBR · Material: Steel · Area of application: Tuning · Surface: raw · Total length: 72.5 mm · Number of fixing points: 4 pcs · Width: 48 mm · Ø mounting hole: 6.3 mm · Mounting type: Screws · Thickness: 5 mm · Hole pattern [mm]: 60 x 35 mm
15,10 EUR
Working late? Evening hours on Thursday until 20:00
