41 mm piston with two 1.5 mm rectangular piston rings with internal fuse (IS) to fit your moped / moped with Sachs 502, 50/2, 50/3 and 50/4 engine.
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 | GPO |
| Ø outside piston (A) | 40.96 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 28 mm |
| Curvature (D) | 2.5 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 2 pcs |
| Nominal diameter | 41 mm |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.5 mm |
| Weight piston kit | 90 g |
| Sachs | 50 (Fahrtwind, 1.25 / 1.5 hp, DE) 502 (Saxonette) - AL , AML 50/2 - L CH (0.8 PS) , ML CH (0.8 PS) , MB (2.6 PS) , MLB (2.6 PS) 50/3 50/4 - MLFB (2.6 PS) , LKH (4.5 PS) 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
EUR 21,10
Explore categories from Piston
Moped fans also bought
Continental 2.00 - 2.50 x 19" tube
Manufacturer: Continental · Tire width: 2 - 2.5 " · Tire width: 2.25 - 2.5 " · Tire width: 2.5 " · Tire width [mm]: 25.8 - 63.5 · Width: 2 " · Width: 2 1/4 " · Width: 2 1/2 " · Wheel size: 19 " · Tire height [%]: 100 · Old designation: 23 x 2 " · Old designation: 23 x 2.25 " · Old designation: 23 x 2.5 " · Valve type: TR6 car valve
EUR 20,60
Manual indoor cable set
Total length: 2200 mm · Manufacturer: Made in Germany · Material: Steel · Ø Stranded wire: 1.2 mm · Ø Stranded wire: 1.25 mm · Ø Stranded wire: 1.5 mm · Ø Stranded wire: 1.8 mm · Quantity: 4 pcs · Nipple shape: Barrel (transverse) · Nipple shape: Cylinder · Nipple shape: Pears
EUR 11,70
Manual cable set black
Total length: 2200 mm · Material: Steel · Color: black · Ø Stranded wire: 1.2 mm · Ø Stranded wire: 1.25 mm · Ø Stranded wire: 1.5 mm · Ø Stranded wire: 1.8 mm · Quantity: 4 pcs · Outer shell length: 6000 mm · Nipple shape: Barrel (transverse) · Nipple shape: Cylinder · Nipple shape: Pears
EUR 23,40
Gasket cylinder base 0.5 mm | Sachs 50/2, 503
Material: Sealing carton · Place of use: Cylinder base · Thickness: 0.5 mm · Hole pattern [mm]: 60 x 40 · Area of application: Standard · Alternative version of the Pony OEM number: A1848 · Alternative version of the Sachs OEM number: 0250 113 100
EUR 4,60
swiing® revival stud bolt set M5x26 inlet (10.9 strength) | Sachs 50/2, 50/2, 50/3
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Thread type: M5x0.8 (standard thread) · Total length: 26 mm · Thread length: 7 mm · Thread length: 14 mm · Width across flats: 8 mm · Strength class: 8 · Strength class: 10.9 · Drive: External hexagon
EUR 6,70
GPO Ø 41 mm "Wummer" cylinder kit (slotted) | Sachs 502, 50/2 (CH)
Manufacturer: GPO · Number of fixing points: 4 pcs · Material: Gray cast iron · Camouflaged: Yes · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 41 mm · Ø cylinder neck: 44.8 mm · Ø Outlet outside: 40 mm · Ø outlet inside: 30 mm · Inlet window: 18 x 15 · Thread inlet: M5x0.8 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Outlet type: Union nut · Hole pattern [mm]: 60 x 40 · Decompressor: No
EUR 188,20
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
