
38 mm replacement piston / piston kit with two pieces of 2 mm rectangular piston rings with flank lock (FS) suitable for the windage-cooled cylinder of Sachs 50/3 & 50/4 mopeds / mopeds with square intake.
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.
| Nominal diameter | 38 mm |
| Ø outside piston (A) | 37.94 mm |
| Compression height (C) | 28 mm |
| Curvature (D) | 2.95 mm |
| Total piston height (E) | 53 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 2 mm |
| Weight piston kit | 73 g |
| Sachs | 50/3 50/4 - MLFB (2.6 PS) , LKH (4.5 PS) |
Accessories & related products
38 mm cylinder kit square inlet | Sachs 50/3, 50/4
Material: Gray cast iron · Surface: sandblasted · Area of application: Tuning · Displacement: 50 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 38 mm · Hole spacing inlet: 31 mm · Number of fixing points: 4 pcs · Thread inlet: M5x0.8 (standard thread) · Hole pattern [mm]: 51 x 40 · Ø piston pin (B): 12 mm · Outlet type: Union nut · Thread outlet: M35x2 (standard thread) · Camouflaged: No
EUR 154.10
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 23.60
Explore categories from Piston
Moped fans also bought
Magura cable clamp Ø 8 x 15 mm
Manufacturer: Magura · Material: Brass · Material: Steel · Surface: galvanized (blue) · Surface: nickel-plated · Ø outside: 8 mm · Ø Cable bushing: 2.3 mm · Drive: External hexagon · Drive: Slot · Screw head: Hexagon · Ø Bundle: 6 mm · Thread type: M6x1 (standard thread) · Total length: 15 mm · Width across flats: 7 mm · Area of application: Standard · Thread length: 7 mm
EUR 2.95
OMG fuel filter metal 6 mm (removable)
Manufacturer: OMG · Material: Glass · Material: Metal · Ø outside: 22 mm · Filter type: Plastic net · demountable: Yes · Ø fuel hose connection: 5.6 mm · Ø fuel hose connection: 6 mm · Ø inside: 3.45 mm · Color: gray · Color: transparent · Color: white · Total length: 40 mm · Total length: 63 mm
EUR 8.05
swiing® revival seal Float SRE, SRC, SRF, SRA
Manufacturer: swiing® revival parts · Material: Sealing paper · Component group Carburetor: Sealing, revising · Carburetor type: SRA (1/11/31) Velux · Carburetor type: SRA (1/11/35) Velux · Carburetor type: SRC · Carburetor type: SRE · Carburetor type: SRF · Thickness: 1.5 mm · Ø inside: 41 mm · Ø outside: 45 mm · Pony OEM number: A4519 · Sachs OEM no.: 0950 128 000
EUR 3.35
Magura gas cable clamp / deco cable clamp Ø 5 x 6 mm
Number of components: 2 pcs · Manufacturer: Magura · Material: Brass · Material: Steel · Surface: nickel-plated · Thread type: M4x0.7 (standard thread) · Ø Cable bushing: 1.6 mm · Screw head: Lens head · Total length: 6 mm · Thread length: 4 mm · Drive: Slot · Ø outside: 5 mm
EUR 2.35
GPO ignition plate 90 mm Bosch / DUCATI
Cable length: 400 mm · Cable length: 500 mm · Manufacturer: GPO · Material: Aluminum · Tension: 6 V · Ø bolt circle: 80 mm · Number of cables: 3 pcs · Number of fixing points: 4 pcs · Ø inside: 18.5 mm · Ø outside: 90 mm · Area of application: Original · Area of application: Standard
EUR 88.90
Magura adjusting screw brake short
Manufacturer: Magura · Material: Brass · Surface: nickel-plated · Color: silver · Thread type: MF6x0.75 (fine pitch thread) · Ø shaft: 6.1 mm · Ø External head: 9.15 mm · Total length: 31 mm · Total length: 40 mm · Thread length: 15 mm · Drive: Knurled screw · Shank length: 6.9 mm
EUR 4.05










