
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 positions and locking types on the legend in the images.
Tolerance type: V
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: A8105
Quality product from the Italian manufacturer Meteor.
| Nominal diameter | 40 mm |
| Manufacturer | Meteor |
| Ø outside piston (A) | 39.93 mm |
| Compression height (C) | 27.9 mm |
| Curvature (D) | 4 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| 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) |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Material: Steel · Total length: 130 mm · Manufacturer: GPO · 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 · Number of components: 7 pcs
CHF 19.90
Meteor piston 40 mm "R" (A8102) | Beta 521 & 512
Manufacturer: Meteor · Ø outside piston (A): 39.97 mm · Compression height (C): 27.9 mm · Curvature (D): 4 mm · Total piston height (E): 52 mm · Number of piston rings (F): 2 pcs · Nominal diameter: 40 mm · 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
CHF 74.90
Meteor piston 40 mm "G" (A8103) | Beta 521 & 512
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 · Nominal diameter: 40 mm · 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
CHF 74.90
Meteor piston 40 mm "N" (A8104) | Beta 521 & 512
Manufacturer: Meteor · Surface: blank · Nominal diameter: 40 mm · Ø outside piston (A): 39.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 28 mm · Curvature (D): 4 mm · Total piston height (E): 52 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Thick piston ring: 1.7 mm · Weight piston kit: 83 g
CHF 74.90
Moped fans also bought
Wippermann drive chain No.18 (double reinforced)
Chain type: 415H · Material: Steel · Color: gray · Manufacturer: Wippermann · Surface: blank / oiled · Number of chain links: 114 pcs · Chain pitch: 1/2" x 3/16" · Rolling circumference: 1448 mm · Chain lock type: Spring lock · Ø bore: 4.2 mm · Ø Pin: 4.15 mm
CHF 33.90
swiing® revival needle roller bearing 12/15/14.2 original
Bearing cage: Sheet steel cage · Manufacturer: swiing® revival parts · Bearing type: Needle sleeve · Width: 14.2 mm · Ø outside: 15 mm · Ø inside: 12 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 155 001
CHF 8.90
Clamping screw with slotted chain guard black | Pony GTX, Cilo, KTM
Material: Hard plastic · Material: Steel · Color: black · Color: silver · Total length: 29.5 mm · Manufacturer: Pony · Surface: galvanized (blue) · Surface: raw · Drive: External hexagon · Drive: Slot · Thread length: 18 mm · Ø External head: 19 mm · Thread type: Sheet metal screw · Area of application: Standard · Number of components: 1 pcs
CHF 2.40
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) · Number of components: 3 pcs · Ø cylinder: 40 mm · Ø outlet inside: 22 mm · Hole spacing outlet: 40 mm · Hole pattern [mm]: 48 x 48 mm · Decompressor: Yes · Area of application: Original
CHF 13.90











