40 mm replacement piston with two pieces of 2 mm rectangular piston rings with flange lock suitable for the old Cilo 502 mopeds / mopeds with 40 mm cylinder kit.
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 pictures.
| Manufacturer | swiing® ingenious parts |
| Thick piston ring | 1.65 mm |
| Ø outside piston (A) | 39.93 mm |
| Compression height (C) | 27.9 mm |
| Curvature (D) | 5.1 mm |
| Total piston height (E) | 54 mm |
| Number of piston rings (F) | 2 pcs |
| Nominal diameter | 40 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring mold | Rectangular ring |
| Piston ring height | 2 mm |
| Ø piston pin (B) | 12 mm |
| Weight piston kit | 93 g |
| Cilo | 502 / 502t |
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 · Total length: 130 mm · Area of application: (Dis)assembly tool · Number of components: 7 pcs · Width across flats: 10 mm · Width across flats: 17 mm
EUR 24.00
Explore categories from Piston
Moped fans also bought
Dell'Orto 16/16 SHA carburetor hand choke
Material: Aluminum · Manufacturer: Dell'Orto · Nominal diameter: 16 mm · Component group Carburetor: Carburetor complete · Carburetor type: SHA · Color: black · Nozzle thread: M5x0.8 (standard thread) · Ø without reducing sleeve: 21 mm · Nozzle size: 82 · Ø Inside entrance: 16 mm · Ø Internal connection: 19 mm · Ø Output inside: 16 mm · Ø Air filter connection: 56 mm · Ø Air filter connection: 58.5 mm · Height: 111 mm · Ø fuel hose connection: 5.1 mm · Ø fuel hose connection: 6 mm · Total length: 82 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Width: 72 mm · Vacuum connection: No · Choke control: Hand choke · Camouflaged: No · Area of application: Tuning
EUR 84.30
swiing® revival stud bolt M6x38 inlet/outlet galvanized (10.9 strength)
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 5.9 mm · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Total length: 38 mm · Thread length: 11 mm · Thread length: 19 mm · Strength class: 10.9
EUR 2.40
swiing® ingenious 16 mm intake manifold | Cilo 502
Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Tuning · Surface: anodized · Color: black-matt · Ø inside: 16 mm · Mounting type: Screws · Number of fixing points: 2 pcs · Ø External connection: 19 mm · Hole spacing inlet: 32 mm
EUR 59.00
swiing® ingenious 40 mm cylinder kit | Cilo 502T
Nominal diameter: 40 mm · Manufacturer: swiing® ingenious parts · Material: Gray cast iron · Surface: sandblasted · Thread inlet: M6x1 (standard thread) · Ø piston pin (B): 12 mm · Outlet type: Union nut · Number of fixing points: 4 pcs · Camouflaged: Yes · Area of application: Tuning
EUR 223.00
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
