38.0 mm piston with two 2 mm rectangular piston rings with flank lock (FS) for mopeds, mopeds and small motorcycles with Sachs 502/1 A, 502/1 B, 502/1 AX, 502/1 AX, 502/1 A CH, 502/1 A DK, 502/1 A NL, 502/1 A S and 502/1 A SF engine (colloquially often called torpedo or rocket engine).
The piston set fits the following models, among others:
The piston pin is closed on one side, as on the original, so that no exhaust gases are forced back through the pin into the intake tract.
The detailed dimensioning 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.
Details
Nominal diameter | 38 mm |
Ø outside piston (A) | 37.94 mm |
Compression height (C) | 28 mm |
Curvature (D) | 3 mm |
Total piston height (E) | 53 mm |
Number of piston rings (F) | 2 pcs |
Piston ring mold | Rectangular ring |
Piston ring impact | Flank safety device (FS) |
Piston ring height | 2 mm |
Thick piston ring | 1.6 mm |
Ø piston pin (B) | 12 mm |
Piston weight | 87 g |
Suitable for the following models
Sachs | 502 1A / 1B (torpedo) |
Hercules | |
KTM | |
Motograziella |
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 SW: 10 mm · Width across flats SW: 17 mm
EUR 23,00
Cylinder base and intake gasket | Sachs 502/1B
Manufacturer: Made in Germany · Material: Oiled paper · Number of components: 2 pcs · Thickness: 0.35 mm · Thickness: 0.55 mm · Hole spacing inlet: 30 mm · Hole pattern [mm]: 40 x 41 mm · Sachs OEM no.: 0250 139 000 · Sachs OEM no.: 0250 140 000
EUR 11,30
Not in stock
Piston 38 mm | Sachs 50/2 1A, 1B
Nominal diameter: 38 mm · Ø outside piston (A): 37.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 28 mm · Curvature (D): 3 mm · Total piston height (E): 53 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring height: 2 mm · Thick piston ring: 1.6 mm · Piston weight: 87 g
EUR 69,20
Piston 38.6 mm | Sachs 50/2 1A, 1B
Nominal diameter: 38.6 mm · Ø outside piston (A): 38.54 mm · Ø piston pin (B): 12 mm · Compression height (C): 28 mm · Curvature (D): 3 mm · Total piston height (E): 53 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring height: 2 mm · Thick piston ring: 1.6 mm · Piston weight: 92 g
EUR 69,20
Moped fans like you also bought:
Magura cable clamp Ø 8 x 15 mm
Ø outside: 8 mm · Total length: 15 mm · Drive: External hexagon · Drive: Slot · Screw head: Hexagon · Width across flats SW: 7 mm · Thread type: M6x1 (standard thread) · Manufacturer: Magura · Thread length: 7 mm · Ø Cable bushing: 2.3 mm · Ø Bundle: 6 mm · Material: Brass · Material: Steel · Surface: galvanized (blue) · Surface: nickel-plated · Area of application: Standard
EUR 2,90
Magura adjusting screw brake short
Manufacturer: Magura · Material: Brass · Surface: nickel-plated · Thread type: MF6x0.75 (fine pitch thread) · Thread length: 15 mm · Total length: 31 mm · Total length: 40 mm · Ø External head: 9.15 mm · Shank length: 6.9 mm · Ø shaft: 6.1 mm · Drive: Knurled screw · Color: silver
EUR 3,95
Decompressor cable Ø 1.5 mm x 180 cm (pear-shaped nipple)
Ø Stranded wire: 1.5 mm · Cable length: 1800 mm · Nipple shape: Pears · Ø nipple: 3.3 mm · Ø nipple: 5 mm · Nipple length: 7 mm · Manufacturer: Made in Germany · Material: Steel · Surface: galvanized (blue) · Area of application: Standard · Pony OEM number: P0919
EUR 2,75
Alligator end piece for indoor cable, aluminum (per piece)
Number of connections: 1 pcs · Color: silver · Manufacturer: Alligator · Ø inside: 2.2 mm · Ø outside: 3.1 - 4 mm · Total length: 12 mm · Number of components: 1 pcs · Material: Aluminum · Surface: raw · Area of application: Standard
EUR 0,45
Fuel tap vertical M16x1 (with union nut) outgoing at the bottom
Manufacturer: GPO · Possible lever positions: open / closed / reserve · Material lever: Metal · Filter type: Plastic net · Ø fuel hose connection: 6 mm · Installation direction: vertical / vertical · Outlet direction: below · Spare tube shape: straight · Mounting type: Union nut · Thread type: MF16x1 (fine pitch thread) · Reserve level: 90 mm
EUR 23,00
Cylinder base and intake gasket | Sachs 502/1B
Manufacturer: Made in Germany · Material: Oiled paper · Number of components: 2 pcs · Thickness: 0.35 mm · Thickness: 0.55 mm · Hole spacing inlet: 30 mm · Hole pattern [mm]: 40 x 41 mm · Sachs OEM no.: 0250 139 000 · Sachs OEM no.: 0250 140 000
EUR 11,30
Not in stock