38.945 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 engine bikes which have a Zündapp type 247 engine installed.
The detailed dimensioning of the piston according to the technical drawing can be found in the details. In addition, you can find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
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.
Details
| Nominal diameter | 39 mm |
| Ø outside piston (A) | 38.945 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 |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Ø piston pin (B) | 12 mm |
| Tolerance group | A |
| Weight | 84 g |
Suitable for the following models
| Zündapp Belmondo | |
| Zündapp | 247 Motor |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Area of application: (Dis)assembly tool · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · Width across flats SW: 10 mm · Width across flats SW: 17 mm · Number of components: 7 pcs
CHF 19.90
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 spare part no.: A1112 · Sachs spare part no.: 0216 003 105
CHF 6.90
Moped fans like you also bought:
BERU spark plug connector / 1 kΩ interference suppressed
Ø cable: 5 mm · Ø cable: 7 mm · Manufacturer: BERU · Material: Sheet metal (steel) · Spark plug socket: M4 · Cable available: No · Color: silver · Resistance: 1000 Ω · Suppressed: Yes · Pony spare part no.: A2099 · Sachs spare part no.: 0265 100 00
CHF 8.75
Motorex Automatic Motor Oil (ATF) 450 ml
Temperature resistance (min.): -45 - 200 °C · Manufacturer: Motorex · Contents [ml]: 450 ml · Gearbox type: Automatic machine · Area of application: Gearbox lubrication with clutch · Pony spare part no.: A2080 · Sachs spare part no.: 0263 014 002
CHF 9.90
CHF 22.00/l
BOSCH Breaker with cable | Bosch / Ducati
Manufacturer: BOSCH · Ø axle: 4 mm · Number of fixing points: 1 pcs · Ø mounting hole: 4.5 mm · Material: Steel · Area of application: Original · Area of application: Standard · Cable available: Yes · Ø Internal flywheel: 90 mm · Cable length: 100 mm · Alternative version of the Pony Spare part no.: A4606 · Alternative version of the Pony Spare part no.: A4606A · Pony spare part no.: A4607 · BOSCH spare part no.: 1 217 013 025 · Sachs spare part no.: 0283 116 102 · Alternative version of Sachs spare part no.: 0983 106 000 · Alternative version of Sachs spare part no.: 2783 039 001 · BERU spare part no.: 0 340 100 710
CHF 19.80
GPO bearing puller set inside
Total length: 140 mm · Span: 8 mm · Span: 25 mm · Manufacturer: GPO · Clamping depth: 10 mm · Clamping depth: 20 mm · Width across flats Screw: 14 mm · Material: Steel · Surface: burnished · Number of components: 11 pcs · Area of application: (Dis)assembly tool
CHF 169.90
NSK 16005 Ball bearing 25/47/8 Gearbox | Zündapp Belmondo (Type 247)
Bearing cage: "-" Sheet steel cage ball-guided · Ø inside: 25 mm · Stock number: 16005 · Inner ring width: 8 mm · Manufacturer: NSK · Bearing clearance: CM (special/noise-reduced) · Area of application: Standard · Material: Steel · Surface: blank · Bearing type: Deep groove ball bearing · Width: 8 mm · Ø outside: 47 mm · Ball bearing closed: No
CHF 14.90
Collection only possible with online purchase and appointment.
