Forged Wössner high-performance piston for the 47 mm Gilardoni italkit cylinder kit / Gilardoni italkit for your Puch moped / moped.
ZME forged piston developed by MBR with a 1 mm rectangular piston ring with internal locking (IS), which is very often used in the moped cross / moped cup scene.
Optimal material structure, flow-optimized shape and large inlet windows characterize this high-quality racing piston.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the common piston rings, their stems and locking types on the legend in the images.
The molybdenum coating in combination with oil results in technologically advanced wear protection with outstanding 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 ASP®).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 C (47.02 mm): 46.97 mm piston
Piston ring, piston pin and piston pin retainers are included in the scope of delivery.
Matching add-on parts such as cylinder kits, needle bearings, stroke plates, carburettors, air filters etc. can be found under accessories.
| Manufacturer | Wössner, MBR |
| Surface | molybdenum-coated |
| Ø outside piston (A) | 46.97 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 |
| Nominal diameter | 47 mm |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Internal fuse (IS) |
| Weight piston kit | 93 g |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Accessories & related products
HOMOET exhaust P8 | Puch (slanted exhaust)
Color: black · Ø outside: 88 mm · Total length: 915 mm · Manufacturer: HOMOET · Material: Steel · Surface: varnished · Mounting type: Welded lug · Ø Silencer: 50 mm · Number of fixing points: 1 pcs · Ø Internal connection: 25 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cone / double cone · Flame tube attachment: Flange
EUR 355.30
swiing® ingenious intake manifold Gilardoni italkit Inox
Manufacturer: swiing® ingenious parts · Camouflaged: No · Material: Aluminum · Area of application: Tuning · Total length: 80 mm · Ø inside: 21 mm · Mounting type: Screws · Number of fixing points: 4 pcs · Ø External connection: 24 mm · Height flange center hole: 42.5 mm · Total height: 55 mm · Hole pattern [mm]: 60 x 35
EUR 83.20
Polini 24 mm carburetor (hand choke)
Manufacturer: Polini · Component group Carburetor: Carburetor complete · Area of application: Tuning · Carburetor type: Flat slide valve · Nozzle thread: M5x0.8 (standard thread) · Mounting type: Plug connection · Nominal diameter: 24 mm · Ø Air filter connection: 49 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: Yes · Vacuum connection: Yes · Choke control: Hand choke
EUR 183.70
Not in stock
MLM 25 mm intake manifold Gilardoni italkit black | Puch
Manufacturer: MLM · Material: Steel · Surface: varnished · Area of application: Tuning · Color: black · Ø inside: 25 mm · Mounting type: Screws · Number of fixing points: 4 pcs · Ø External connection: 28.5 mm · Hole pattern [mm]: 60 x 35
EUR 97.90
Explore categories from Piston
Moped fans also bought
swiing® revival stud bolt inlet/outlet M6 x 30 (10.9 strength)
Manufacturer: swiing® revival parts · Diameter: 5.95 mm · Material: Steel · Surface: galvanized (blue) · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Total length: 30 mm · Thread length: 12 mm · Strength class: 10.9
EUR 2.20
MLM 25 mm intake manifold Gilardoni italkit black | Puch
Manufacturer: MLM · Material: Steel · Surface: varnished · Area of application: Tuning · Color: black · Ø inside: 25 mm · Mounting type: Screws · Number of fixing points: 4 pcs · Ø External connection: 28.5 mm · Hole pattern [mm]: 60 x 35
EUR 97.90
Gilardoni italkit 47 mm cylinder kit without cylinder head | Puch
Manufacturer: Gilardoni italkit · Camouflaged: No · Material: Aluminum · Surface: sandblasted · Area of application: Tuning · Displacement: 75 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 51 mm · Nominal diameter: 47 mm · Ø outlet inside: 26.5 mm · Number of fixing points: 4 pcs · Ø Inlet inside: 18.3 mm · Inlet window: 38.5 x 25.8 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 35.5 mm · Hole spacing inlet: 60 mm · Ø piston pin (B): 12 mm · Hole spacing outlet: 42 mm · Outlet type: slanted · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Decompressor: No
EUR 257.30
Not in stock
Hot 
swiing® ingenious crankshaft "High End" with mounted bearings | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Material: Steel · Cheek type: Full cheeks · Thread type: MF10x1 (fine pitch thread) · Crankshaft stroke: 43 mm · Connecting rod length center-center: 90 mm · Total length of crankpin on clutch side: 74 mm · Total length crankpin ignition side: 66 mm · Ø crank webs: 69.9 mm · Thread length: 11 mm · Thread length: 15 mm · Ø Connecting rod eye: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 17 mm · Ø Bearing seat (ignition side): 17 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Wide crank webs: 34 mm · Length 1st paragraph: 9 mm · Length 2nd paragraph: 14.5 mm · Length 3rd paragraph: 25 mm · Ø 1st step (on the coupling side): 22 mm · Ø 2nd shoulder (on the clutch side): 17 mm · Ø 3rd step (on the clutch side): 15 mm · Length of shoulder (ignition side): 26.3 mm · Weight: 968 g · Number of gears: 1 pcs
EUR 220.50
MVT internal rotor ignition incl. rev limiter & light 12V | Puch / Sachs
Manufacturer: MVT Allumage · Manufacturer: swiing® ingenious parts · Tension: 12 V · Performance: 65 W · Direction of rotation: left · Ø mounting plate: 96 mm · Ø Flywheel outside: 49.2 mm · Ø cable: 7 mm · Mounting type: Screws · Number of fixing points: 2 pcs · Weight: 268 g · Area of application: Tuning
EUR 447.30
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
