43.0 mm piston with two 1.5 mm rectangular piston rings with internal fuse (IS) suitable for various mopeds / mopeds with Sachs 50/2, 50/3, 50/4 engines.
This replacement piston is suitable for the GPO Pomodoro 43 mm as well as the Badass Pandora 43 mm racing set.
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.
The piston kit contains piston pin, piston clips and piston ring.
You will find the corresponding assembly tool and piston pin locks in the accessories section.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
| Nominal diameter | 43 mm |
| Manufacturer | GPO |
| Thick piston ring | 1.8 mm |
| Ø outside piston (A) | 42.94 mm |
| Compression height (C) | 27.7 mm |
| Curvature (D) | 2.4 mm |
| Total piston height (E) | 50.2 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.5 mm |
| 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 |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Material: Steel · Surface: burnished · Total length: 130 mm · Manufacturer: GPO · Number of components: 7 pcs · Area of application: (Dis)assembly tool · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Width across flats SW: 10 mm · Width across flats SW: 17 mm
EUR 24.30
Moped fans also bought
swiing® ingenious 15 mm carburetor tuning camouflaged | Sachs 503
Total length: 66 mm · Manufacturer: swiing® ingenious parts · Area of application: Tuning · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Material: Aluminum · Carburetor type: SRE · Choke control: Hand choke · Nominal diameter: 15 mm · Nozzle thread: M3.5x0.6 (standard thread) · Ø fuel hose connection: 6 mm · Nozzle size: 62 · Ø Inside entrance: 15 mm · Ø Internal connection: 20 mm · Width: 50 mm · Ø Output inside: 15 mm · Height: 95 mm · Ø Air filter connection: 20 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Vacuum connection: No · Nozzle block: 2.17 · Clamping screw torque (max.): 4 N/m
EUR 97.60
swiing® revival air filter Racing | Sachs 503
Material: Plastic · Manufacturer: swiing® revival parts · Height: 52 mm · Width: 68 mm · Camouflaged: No · Filter type: Racing screen · Color: black · Total length: 165 mm · Ø Internal connection: 20 mm · Area of application: Tuning · Mounting type: Plug connection clamped
EUR 65.80
EUR 73.10
swiing® ingenious 15 mm intake manifold long version | Sachs 503 2AL, 2BL
Material: Aluminum · Manufacturer: swiing® ingenious parts · Camouflaged: No · Ø inside: 15 mm · Ø External connection: 20 mm · Area of application: Tuning · Total length: 70 mm · Height flange center hole: 70 mm · Thread type: M6x1 (standard thread) · Mounting type: Screws · Hole spacing inlet: 32 mm · Total height: 80 mm · Number of fixing points: 2 pcs · Pony OEM number: A2176
EUR 73.10
swiing® revival silent blocks Alu Racing | Sachs 503 / 504 / 505 / 535
Material: Aluminum · Surface: anodized · Nominal diameter inside: 8.5 mm · Total length: 13 mm · Manufacturer: swiing® revival parts · Ø outside: 21.95 mm · Ø inside: 8.3 mm · Ø Bundle: 26 mm · Alternative version of the Pony OEM number: A4286 · Alternative version of the Sachs OEM number: 0251 121 000
EUR 29.20
GPO 43 mm "Pomodoro" cylinder kit | Sachs 503
Manufacturer: GPO · Material: Gray cast iron · Nominal diameter: 43 mm · Crankshaft stroke: 43 mm · Displacement: 63 ccm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø Inlet inside: 19 mm · Ø piston pin (B): 12 mm · Thread inlet: M6x1 (standard thread) · Area of application: Tuning · Ø outlet inside: 22 mm · Outlet type: clamped · Hole spacing inlet: 32 mm · Hole pattern [mm]: 40 x 60 / 37 x 37
EUR 260.00
EUR 274.60
Collection only possible with online purchase and appointment.
