38.50 mm replacement piston / piston kit with two 2 mm rectangular piston rings with flank lock (FS) suitable for mopeds / mopeds with blown Sachs 50/3, 50/4 replica cylinders.
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 pins, piston clips and piston rings.
You will find the corresponding assembly tool, piston pin retainers and, if necessary, the corresponding cylinder in the accessories section.
Original Sachs spare part number: 0290 058 025
| Ø outside piston (A) | 38.46 mm |
| Compression height (C) | 27.7 mm |
| Curvature (D) | 3.1 mm |
| Total piston height (E) | 52.75 mm |
| Number of piston rings (F) | 2 pcs |
| Nominal diameter | 38.5 mm |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 2 mm |
| Piston weight | 80 g |
| Sachs | 50/3 50/4 - MLFB (2.6 PS), LKH (4.5 PS) |
Accessories & related products
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 · Number of components: 7 pcs · Width across flats SW: 10 mm · Width across flats SW: 17 mm · Area of application: (Dis)assembly tool
CHF 19.90
Moped fans also bought
Brake cable Ø 1.8 mm x 220 cm (pear-shaped nipple)
Ø Stranded wire: 1.8 mm · Cable length: 2200 mm · Nipple shape: Pears · Ø nipple: 3.5 mm · Ø nipple: 6 mm · Manufacturer: Made in Germany · Material: Steel · Number of components: 1 pcs · Surface: galvanized (blue) · Nipple length: 10 mm · Area of application: Standard
CHF 2.40
Plastic license plate holder (CH version)
Thread type: M5x0.8 (standard thread) · Manufacturer: Made in Switzerland · Thread length: 6 mm · Material: Brass · Material: Plastic · Color: black · Mounting type: Nuts & bolts · Total length: 175 mm · Width: 108 mm · Height: 11 mm · Ø mounting hole: 6 mm · Hole spacing: 50 mm · Number of fixing points: 9 pcs
CHF 7.90
Union pedals plastic standard
Drive: Hexagon socket · Drive: Outer edge · Width across flats SW: 15 mm · Thread type: FG14.3 (9/16" 20G) · Manufacturer: Union · Material: Plastic · Material: Steel · Surface: rubberized · Color: black · Total length: 129 mm · Width: 77 mm · Height: 29 mm · Reflectors: Yes
CHF 12.90
Meteor piston 38.6 mm oversize | Sachs 50/2 & 503
Nominal diameter: 38 mm · Manufacturer: Meteor · Ø outside piston (A): 38.55 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) · Ø piston pin (B): 12 mm · Piston ring height: 2 mm · Piston weight: 84 g · Pony OEM number: A2774 · Pony OEM number: A4359 · Sachs OEM no.: 0286 377 012 · Sachs OEM no.: 0286 378 006
CHF 49.90
Collection only possible with online purchase and appointment.
