40.0 mm piston with two 1.5 mm rectangular piston rings with internal locking (IS) for Cilo Cross 521 & 512, Pony Cross 521, Pony GTX 521 mopeds / mopeds.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their stems and locking types on the legend in the images.
Tolerance type: G
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.
Original spare part number: A8103
Quality product from the Italian manufacturer Meteor.
| Manufacturer | Meteor |
| Ø outside piston (A) | 39.95 mm |
| Compression height (C) | 27.9 mm |
| Curvature (D) | 4.15 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Nominal diameter | 40 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 1.5 mm |
| Ø piston pin (B) | 12 mm |
| Weight piston kit | 83 g |
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) |
Ratings
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Number of components: 7 pcs · Total length: 130 mm · Width across flats: 10 mm · Width across flats: 17 mm · Area of application: (Dis)assembly tool
EUR 23.80
Explore categories from Piston
Moped fans also bought
swiing® revival gasket set cylinder original engine | Beta 521, 512
Manufacturer: swiing® revival parts · Material: Copper · Material: Sealing carton · Material: Sealing paper · Material: Sheet metal (steel) · Ø cylinder: 40 mm · Ø outlet inside: 22 mm · Area of application: Original · Number of components: 3 pcs · Hole pattern [mm]: 48 x 48 mm · Hole spacing outlet: 40 mm · Decompressor: Yes
EUR 16.60
Headlight original | Pony Cross, GTX (P8272)
Manufacturer: Pony · Test mark: E2 · Area of application: Standard · Housing material: Plastic · Color: black · Tension: 12 V · Bulb holder: P26s · Lens material: Plastic · Mounting type: Screws · Performance: 15 W · Speedometer recording: None · Height: 93 mm · Thread size: M5 · Switch included: No · Depth: 87 mm · Battery operated: No · Number of fixing points: 2 pcs · Width: 158 mm
EUR 95.50
GPO gasket 0.5 mm cylinder head Ø 40 mm cylinder | Pony GTX, Cross 521
Manufacturer: GPO · Material: Aluminum · Place of use: Cylinder head · Ø cylinder: 40 mm · Ø inside: 40.5 mm · Nominal diameter: 40 mm · Thickness: 0.5 mm · Hole pattern [mm]: 48 x 48 · Alternative version of the Pony OEM number: A8098
EUR 3.45
GPO 40 mm cylinder (without piston & gasket set) "Original" | Pony GTX, Cross 521 (A8092)
Manufacturer: GPO · Material: Gray cast iron · Area of application: Original · Surface: blank · Displacement: 50 ccm · Nominal diameter: 40 mm · Ø cylinder neck: 45 mm · Hole spacing for cylinder mounting: 48 mm · Number of fixing points: 4 pcs · Outlet type: straight · Hole spacing outlet: 39 mm
EUR 107.50
GPO 40 mm cylinder kit "Original" | Pony GTX, Cross 521 (A8092)
Nominal diameter: 40 mm · Manufacturer: GPO · Material: Gray cast iron · Surface: blank · Displacement: 50 ccm · Ø cylinder neck: 45 mm · Ø outlet inside: 21.5 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 39 mm · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 48 x 48 · Area of application: Original
EUR 179.30
Collection only possible with online purchase and appointment.
