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 |
| Thick piston ring | 1.7 mm |
| Ø outside piston (A) | 39.97 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 |
| Nominal diameter | 40 mm |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.5 mm |
| Ø piston pin (B) | 12 mm |
| Weight piston kit | 83 g |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
Ratings
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Area of application: (Dis)assembly tool · Material: Steel · Surface: burnished · Number of components: 7 pcs · Total length: 130 mm · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Width across flats: 10 mm · Width across flats: 17 mm
EUR 23,40
Explore categories from Piston
Moped fans also bought
Hot 
BERU spark plug connector / 1 kΩ interference suppressed
Manufacturer: BERU · Material: Sheet metal (steel) · Color: silver · Spark plug socket: M4 · Cable available: No · Suppressed: Yes · Resistance: 1000 Ω · Subcategory: Spark plug connector · Ø cable: 5 mm · Ø cable: 7 mm · Pony OEM number: A2099 · Sachs OEM no.: 0265 100 00
EUR 10,40
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 12,80
EUR 28,44/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 · Total length: 2200 mm · Nipple shape: Barrel (transverse) · Nipple shape: Cylinder · Nipple shape: Pears
EUR 11,70
Hot
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Choke control: Hand choke · Carburetor type: SRE · Nominal diameter: 15 mm · Ø fuel hose connection: 6 mm · Total length: 66 mm · Ø Inside entrance: 15 mm · Ø Internal connection: 20 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Width: 50 mm · Height: 95 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Vacuum connection: No · Nozzle thread: M3.5x0.6 (standard thread) · Area of application: Tuning · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
EUR 94,00
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
