39.0 mm piston with a rectangular piston ring with internal fuse (IS) suitable for Zündapp Belmondo mopeds, Zündapp Bergsteiger M25/M50 mopeds, as well as Alpa Spezial 3000 or Alpa Black River small motorcycles which have a Zündapp type 247 engine installed.
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.
| Ø outside piston (A) | 38.95 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 26.3 mm |
| Curvature (D) | 1.3 mm |
| Total piston height (E) | 51.65 mm |
| Number of piston rings (F) | 1 pcs |
| Nominal diameter | 39 mm |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Tolerance group | B |
| Weight piston kit | 82 g |
| Zündapp | Belmondo (Type 247-71) Moped 25 (M 25) / Moped M 50 Bergsteiger (Type 247-434) |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Number of components: 7 pcs · Material: Steel · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · Area of application: (Dis)assembly tool · Width across flats: 10 mm · Width across flats: 17 mm
23,20 EUR
Meteor piston pin Ø 12 mm (length: 31 - 40 mm)
Manufacturer: Meteor · Material: Steel · Surface: Hardened · Ø piston pin (B): 12 mm · Total length: 31 mm · Total length: 31.5 mm · Total length: 33 mm · Total length: 35.5 mm · Total length: 37 mm · Total length: 38 mm · Total length: 40 mm · Pony OEM number: A1112 · Sachs OEM no.: 0216 003 105
8,05 EUR
Explore categories from Piston
Moped fans also bought
Nos
Hot 
BERU Spark Plug Connector, 1 kΩ, Noise-Suppressed, NOS
Manufacturer: BERU · Material: Sheet metal (steel) · Color: silver · Spark plug socket: M4 · Cable available: No · Suppressed: Yes · Resistance: 1000 Ω · Subcategory: Spark plug connector · Ø cable: 5 mm · Ø cable: 7 mm · Pony OEM number: A2099 · Sachs OEM no.: 0265 100 00
11,60 EUR
Hot
BOSCH breaker with cable | Bosch / Ducati
Manufacturer: BOSCH · Area of application: Original · Area of application: Standard · Material: Steel · Cable available: Yes · Ø axle: 4 mm · Ø Internal flywheel: 90 mm · Number of fixing points: 1 pcs · Cable length: 100 mm · Ø mounting hole: 4.5 mm · Alternative version of the Pony OEM number: A4606 · Alternative version of the Pony OEM number: A4606A · Pony OEM number: A4607 · BOSCH OEM number: 1 217 013 025 · Sachs OEM no.: 0283 116 102 · Alternative version of the Sachs OEM number: 0983 106 000 · Alternative version of the Sachs OEM number: 2783 039 001 · BERU OEM number: 0 340 100 710
23,20 EUR
Heidenau 2.25 x 17" tires M4 Allround
Inventory-managed: No · Manufacturer: Heidenau · Tire width: 2.25 " · Width: 2 1/4 " · Color: black · Old designation: 21 x 2.25 " · Speed index: B = 50 km/h · Load capacity index: 28 = 100 kg · Profile type: M4 · Tire type: Allround · White wall: No · Wheel size: 17 " · Tubeless (yes/no): Tubetype TT (requires hose)
55,90 EUR
Hot
swiing® revival clamp body reinforced | Sachs 503 AB, AC, ADV, ABL (A1196)
Manufacturer: swiing® revival parts · Material: Steel · Ø inside: 19 mm · Number of teeth: 24 pcs · Ø outside: 26.8 mm · Height: 10.9 mm · Surface: Hardened · Pony OEM number: A1196 · Sachs OEM no.: 0232 186 100
75,70 EUR
Hot
DUCATI ignition coil (1A quality)
Place of use: Internal (in the ignition) · Manufacturer: DUCATI · Ø cable holder: 5.9 mm · Color: black · Mounting type: Screws · Ø Internal flywheel: 90 mm · Number of fixing points: 2 pcs · Ø mounting hole: 4.6 mm · Hole spacing: 54 mm · Total length: 76.5 mm · Cable length: 37 mm · Height: 17 mm · Area of application: Original · Area of application: Standard · Pony OEM number: A2114 · Alternative version of the Pony OEM number: A2116 · Alternative version of the Pony OEM number: A2118 · Pony OEM number: A5524 · Alternative version of the Sachs OEM number: 0265 142 002 · Alternative version of the Sachs OEM number: 0265 142 004 · Sachs OEM no.: 0265 132 100 · Sachs OEM no.: 0265 203 001
116,60 EUR
Not in stock
DUCATI Capacitor (Screw-On) NOS | Bosch / Ducati
Manufacturer: DUCATI · Capacity: 0.2 µF · Thread type: M3x0.5 (standard thread) · Mounting type: Plug connection clamped · Ø outside: 18 mm · Connection type: Thread for screwing · Total height: 30.5 mm · Height: 23.5 mm · Area of application: Original · Area of application: Standard · Alternative version of the Pony OEM number: A2090 · Alternative version of the Pony OEM number: A2092 · Alternative version of the Pony OEM number: A5520 · Alternative version of the Sachs OEM number: 0265 052 003 · Alternative version of the Sachs OEM number: 0265 052 007 · Alternative version of the Sachs OEM number: 0265 202 000
46,60 EUR
Working late? Evening hours on Thursday until 20:00
