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.
| Nominal diameter | 40 mm |
| 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 |
| Piston ring impact | Flank safety device (FS) |
| Ø piston pin (B) | 12 mm |
| Piston ring height | 1.5 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
Material: Steel · Total length: 130 mm · Manufacturer: GPO · Number of components: 7 pcs · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Width across flats: 10 mm · Width across flats: 17 mm · Area of application: (Dis)assembly tool
EUR 23.80
Moped fans also bought
swiing® revival gasket set cylinder original engine | Beta 521, 512
Manufacturer: swiing® revival parts · Material: Copper · Area of application: Original · Material: Sealing carton · Material: Sealing paper · Material: Sheet metal (steel) · Ø cylinder: 40 mm · Ø outlet inside: 22 mm · Number of components: 3 pcs · Hole spacing outlet: 40 mm · Hole pattern [mm]: 48 x 48 mm · Decompressor: Yes
EUR 16.60
Headlight original | Pony Cross, GTX (P8272)
Manufacturer: Pony · Test mark: E2 · Area of application: Standard · Bulb holder: P26s · Housing material: Plastic · Switch included: No · Tension: 12 V · Thread size: M5 · Lens material: Plastic · Performance: 15 W · Color: black · Height: 93 mm · Depth: 87 mm · Mounting type: Screws · Speedometer recording: None · Number of fixing points: 2 pcs · Battery operated: No · Width: 158 mm
EUR 95.40
GPO gasket 0.5 mm cylinder head Ø 40 mm cylinder | Pony GTX, Cross 521
Nominal diameter: 40 mm · Manufacturer: GPO · Material: Aluminum · Ø cylinder: 40 mm · Place of use: Cylinder head · Thickness: 0.5 mm · Ø inside: 40.5 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 · Surface: blank · Displacement: 50 ccm · Nominal diameter: 40 mm · Ø cylinder neck: 45 mm · Hole spacing outlet: 39 mm · Hole spacing for cylinder mounting: 48 mm · Outlet type: straight · Number of fixing points: 4 pcs · Area of application: Original
EUR 107.40
EUR 95.40
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 179.10
EUR 161.20
Collection only possible with online purchase and appointment.
