
48 mm replacement piston with a 2 mm L-piston ring with internal circlip (IS) for mopeds / mopeds with the original Sachs 503 AB / AC / ADV wide-wall 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 dimensions and locking types on the legend in the images.
Tolerance type: A
The piston kit contains piston pins, piston clips and piston rings.
You will find the corresponding assembly tools, piston pin locks and, if necessary, the corresponding cylinder in the accessories section.
Quality product from the Italian manufacturer Athena.
| Nominal diameter | 48 mm |
| Manufacturer | Athena |
| Ø outside piston (A) | 47.92 mm |
| Compression height (C) | 29.3 mm |
| Curvature (D) | 2.1 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 1 pcs |
| Piston ring mold | L-ring |
| Piston ring impact | Internal fuse (IS) |
| Ø piston pin (B) | 12 mm |
| Piston ring height | 2 mm |
| Tolerance group | A |
| Weight piston kit | 114 g |
| Sachs | 503 - AB, AC, ADV |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Surface: burnished · Area of application: (Dis)assembly tool · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Number of components: 7 pcs · Total length: 130 mm · Width across flats: 10 mm · Width across flats: 17 mm
EUR 24.40
Athena 48 mm cylinder kit | Sachs 503 AB, AC, ADV
Nominal diameter: 48 mm · Manufacturer: Athena · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Displacement: 80 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Ø Outlet outside: 26 mm · Number of fixing points: 4 pcs · Thread inlet: M6x1 (standard thread) · Area of application: Tuning · Outlet type: clamped · Outlet type: slanted · Thread outlet: M6x1 (standard thread)
EUR 428.30
Athena piston 48 mm #B | Sachs 503 AB, AC, ADV
Nominal diameter: 48 mm · Manufacturer: Athena · Ø outside piston (A): 47.93 mm · Compression height (C): 29.1 mm · Curvature (D): 2.1 mm · Total piston height (E): 52 mm · Number of piston rings (F): 1 pcs · Piston ring mold: L-ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 2 mm · Tolerance group: B · Weight piston kit: 113 g
EUR 97.80
Moped fans also bought
GPO flywheel trigger M26x1.5 / M22x1.5 | Puch, Sachs, Tomos, Beta 521
Width across flats trigger: 27 mm · Width across flats Screw: 19 mm · Manufacturer: GPO · Clamping depth: 10 mm · Material: Steel · Surface: blackened · Area of application: (Dis)assembly tool · Thread type: MF22x1.5 (fine pitch thread) · Thread type: MF26x1.5 (fine pitch thread) · Total length: 55 mm · Total length: 75 mm · Number of components: 1 pcs · Strength class: 8.8
EUR 12.10
Magura gas cable clamp / deco cable clamp Ø 5 x 6 mm
Manufacturer: Magura · Material: Brass · Material: Steel · Surface: nickel-plated · Ø outside: 5 mm · Thread type: M4x0.7 (standard thread) · Total length: 6 mm · Ø Cable bushing: 1.6 mm · Drive: Slot · Screw head: Lens head · Number of components: 2 pcs · Thread length: 4 mm
EUR 2.45
Fortune / Merrick 2.00-2.50 x 16/17" inner tube
Manufacturer: Fortune · Tire width: 2 - 2.5 " · Tire width: 2.25 - 2.5 " · Tire width: 2.5 " · Tire width [mm]: 50.8 - 63.5 · Width: 2 " · Width: 2 1/4 " · Width: 2 1/2 " · Tire height [%]: 100 · Old designation: 20 x 2 " · Old designation: 20 x 2.25 " · Old designation: 20 x 2.5 " · Old designation: 21 x 2 " · Old designation: 21 x 2.25 " · Old designation: 21 x 2.5 " · Valve type: TR4 Auto valve · Wheel size: 16 - 17 " · Wheel size: 17 "
EUR 12.10
GUIA light switch chrome (3 switch positions)
Manufacturer: GUIA · Material: Plastic · Housing material: Steel · Surface: chrome-plated · Color: Chrome · Substructure material: Steel · Ø Handlebars: 22 mm · Total length: 55 mm · Functions: High beam (headlights) · Functions: Horn · Functions: Light off · Functions: Low beam · Functions: Motor stop · Number of positions: 3 pcs · Width: 30 mm · Height: 30 mm
EUR 17.00
Fortune 2.25 x 17" tires 2 P.R. Allround
Manufacturer: Fortune · Tire width: 2.25 " · Tire width [mm]: 57.15 · Color: black · Width: 2 1/4 " · Old designation: 21 x 2.25 " · Speed index: N = 140 km/h · Load capacity index: 35 = 121 kg · Profile type: 2 P.R. · Tire type: Allround · White wall: No · Wheel size: 17 " · Tubeless (yes/no): Tubetype TT (requires hose)
EUR 34.90
Handlebar stem 30 cm curved with chrome strut
Manufacturer: Made in Germany · Material: Steel · Surface: chrome-plated · Color: Chrome · Ø outside: 22 mm · Clamping diameter: 25 mm · Width: 680 mm · Mounting type: Front boom mounting · Height: 270 mm · Length handlebar ends: 150 mm · Crossbar: Yes · Ø Strut: 14 mm · Strut length: 230 mm
EUR 40.30
ESJOT drive chain 415H (reinforced) 114L (1A quality)
Chain pitch: 1/2" x 3/16" · Chain type: 415H · Manufacturer: ESJOT · Material: Steel · Surface: blank / oiled · Color: gray · Number of chain links: 114 pcs · Rolling circumference: 1448 mm · Chain lock type: Spring lock · Ø bore: 4.05 mm · Ø Pin: 4 mm
EUR 23.10












