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Cylinder -OEM QUALITY 125 cc 3 port- Vespa PV125, ET3 125, PK125 S, PK125 XL2, PK125 ETS
Part no.:
3330557
Description
This is a very successful replica of the original cylinder of the performance Vespa Primavera, the ET3 (as well as the later PK125 models). The designation ET3 stands for electronicignition and 3 overflow channels(Travasi 3). Which is already the most important improvement over the two-channel cylinder. The third overflow channel (also called boost port) helps to a significantly better performance.
Last installed in the PK ETS Piaggio gives a whopping 97kmh for this model as top speed. All this with 20mm carburetor and normal crankshaft.
- Bore: Ø55mm
- Stroke: 51mm (std.)
- Displacement: 121ccm
- Stud bolt exhaust: M8x1.25
- Stud distance exhaust: 56mm (like original PK125)
This well-made and solid cylinder is recommended as a powerful replacement for the original cylinder of the Primavera models or as a stable and sovereign tuning for the 50cc models. These then of course require other components of the 125cc variant: crankshaft, cylinder cover, studs, cylinder head, carburetor, transmission, exhaust.
Conclusion: The ET3 cylinder is the perfect way to build a stable and fast engine that does not have to hide with its performance. Also this cylinder comes with piston, piston pin, piston rings , and the piston pin clips. Piston rings 2x1,5mm.
Exhaust studs (not included).
NOTE: The cylinder already has the modern hole pattern for the Vespa PK exhaust systems (8mm studs with 56mm spacing). Original PV/ET3 exhaust systems still use a spacing of 52mm here. The manifold should be adjusted accordingly (when using original ET3 exhaust systems) or a matching aluminum manifold should be used (when using orig. PV125 exhaust systems). Modern exhaust systems usually already have a matching manifold.
€129.00 *
€156.00 *
(17.31% off)
incl. VAT plus shipping costs
Available immediately (delivery time 1-3 working days*)
P
For this item you get
fidelity point/s
| General | |
|---|---|
| performance class: | standard |
| Gudgeon pins | |
| diameter: | 15 mm |
| Cylinders | |
| displacement: | 121 cm³ |
| bore: | 55 mm |
| engine type: | 2-stroke |
| type of cooling: | air cooled |
| material: | cast iron |
| material piston cylinder surface: | cast iron |
| cylinder head inclusive: | |
| cylinder gasket set inclusive: | |
| number of transfers (incl.boost ports): | 3 |
| number of boost ports: | 1 |
| shape exhaust port: | single port (oval) |
| exhaust mounting: | flange |
| flange type: | 2 studs |
| exhaust bolt pitch: | 56 mm |
| thread exhaust studs: | M8 |
| Crankshafts | |
| stroke: | 51 mm |
| Pistons | |
| number of piston rings: | 2 |
| production method piston: | cast |
| Piston rings | |
| piston ring type: | common ring |
| thickness rings: | 1,5mm |
| Circlips | |
| circlip type: | Seeger-type |
| OEM numbers (for comparison purposes only) | |
| Piaggio | 151981, 243473, 197592, E.3950, E.8319, E8319 |
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