
38 mm replacement piston / piston kit with two pieces of 2 mm rectangular piston rings with flank lock (FS) suitable for the windage-calibrated 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 images.
The piston kit contains piston pins, piston clips and piston rings.
Corresponding assembly tools, piston rings, piston pin retainers etc. can be found under accessories.
Original Sachs spare part number: 0290 058 025
| 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 |
| Nominal diameter | 38 mm |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 2 mm |
| Ø piston pin (B) | 12 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 · Camouflaged: No · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 38 mm · Thread inlet: M5x0.8 (standard thread) · Ø piston pin (B): 12 mm · Outlet type: Union nut · Thread outlet: M35x2 (standard thread) · Number of fixing points: 4 pcs · Hole pattern [mm]: 51 x 40 · Hole spacing inlet: 31 mm · Area of application: Tuning
EUR 155.40
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 · Width across flats: 10 mm · Width across flats: 17 mm · Area of application: (Dis)assembly tool · Number of components: 7 pcs
EUR 23.80
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 · Total length: 15 mm · Ø Cable bushing: 2.3 mm · Drive: External hexagon · Drive: Slot · Screw head: Hexagon · Ø Bundle: 6 mm · Width across flats: 7 mm · Thread length: 7 mm · Thread type: M6x1 (standard thread) · Area of application: Standard
EUR 3.00
OMG fuel filter metal 6 mm (removable)
Manufacturer: OMG · Material: Glass · Material: Metal · Ø inside: 3.45 mm · Ø outside: 22 mm · Total length: 40 mm · Total length: 63 mm · Filter type: Plastic net · demountable: Yes · Color: gray · Color: transparent · Color: white · Ø fuel hose connection: 5.6 mm · Ø fuel hose connection: 6 mm
EUR 8.15
swiing® revival seal Float SRE, SRC, SRF, SRA
Manufacturer: swiing® revival parts · Material: Sealing paper · Component group Carburetor: Sealing, revising · Surface: blank · Ø inside: 41 mm · Carburetor type: SRA (1/11/31) Velux · Carburetor type: SRA (1/11/35) Velux · Carburetor type: SRC · Carburetor type: SRE · Carburetor type: SRF · Ø outside: 45 mm · Thickness: 1.5 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
Manufacturer: Magura · Ø Cable bushing: 1.6 mm · Material: Brass · Material: Steel · Surface: nickel-plated · Number of components: 2 pcs · Ø outside: 5 mm · Drive: Slot · Screw head: Lens head · Thread type: M4x0.7 (standard thread) · Thread length: 4 mm · Total length: 6 mm
EUR 2.40
GPO ignition plate 90 mm Bosch / DUCATI
Cable length: 400 mm · Cable length: 500 mm · Manufacturer: GPO · Material: Aluminum · Tension: 6 V · Ø inside: 18.5 mm · Ø outside: 90 mm · Number of cables: 3 pcs · Ø bolt circle: 80 mm · Area of application: Original · Area of application: Standard · Number of fixing points: 4 pcs
EUR 89.60
Magura adjusting screw brake short
Manufacturer: Magura · Material: Brass · Surface: nickel-plated · Total length: 31 mm · Total length: 40 mm · Drive: Knurled screw · Color: silver · Ø External head: 9.15 mm · Thread length: 15 mm · Thread type: MF6x0.75 (fine pitch thread) · Ø shaft: 6.1 mm · Shank length: 6.9 mm
EUR 4.05










