40.0 mm piston with two rectangular piston rings with internal locking (IS) suitable for the swiing racing cylinder made of aluminum for Sachs 503 mopeds / mopeds.
The inner surfaces of the piston have been milled flat for optimum guiding of the connecting rod. The two hard chrome-plated piston rings have a positive effect on the service life.
In addition, the piston has two holes for optimum lubrication of the piston pin.
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 |
| Nominal diameter | 40 mm |
| Thick piston ring | 1.7 mm |
| Ø outside piston (A) | 39.97 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 28 mm |
| Curvature (D) | 3.5 mm |
| Total piston height (E) | 54 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 |
| Weight piston kit | 83 g |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
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 24.40
Explore categories from Piston
Moped fans also bought
- 10 %
Hot 
BERU spark plug connector 1 kΩ interference suppressed
Manufacturer: BERU · Material: Sheet metal (steel) · Color: silver · Ø cable: 5 mm · Ø cable: 7 mm · Spark plug socket: M4 · Cable available: No · Suppressed: Yes · Resistance: 1000 Ω · Subcategory: Spark plug connector · Pony OEM number: A2099 · Sachs OEM no.: 0265 100 00
EUR 10.80
EUR 9.70
Motorex engine oil (gear oil) manual 450 ml
Temperature resistance (min.): -30 - 220 °C · Manufacturer: Motorex · Oil type: GL4 · Viscosity (SAE): 80W · Contents: 450 ml · Gearbox type: Foot control · Gearbox type: Manual gearshift · Area of application: Gearbox lubrication with clutch
EUR 13.40
EUR 29.78/l
Manual indoor cable set
Manufacturer: Made in Germany · Material: Steel · Quantity: 4 pcs · Ø Stranded wire: 1.2 mm · Ø Stranded wire: 1.25 mm · Ø Stranded wire: 1.5 mm · Ø Stranded wire: 1.8 mm · Nipple shape: Barrel (transverse) · Nipple shape: Cylinder · Nipple shape: Pears · Total length: 2200 mm
EUR 12.10
Hot
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRE · Nominal diameter: 15 mm · Ø Internal connection: 20 mm · Width: 50 mm · Ø Inside entrance: 15 mm · Total length: 66 mm · Height: 95 mm · Mounting type: Plug connection clamped · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m · Area of application: Tuning
EUR 97.90
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
