Naraku 39.7 mm cylinder kit 137-88 for air-cooled Piaggio 50cc two-stroke engines, showing finned cylinder, piston, rings, pin and gaskets Naraku 39.7 mm cylinder kit 137-88 for air-cooled Piaggio 50cc two-stroke engines, showing finned cylinder, piston, rings, pin and gaskets
Underside of Naraku air-cooled Piaggio 50cc two-stroke cylinder 137-88 showing cylinder bore and port openings Underside of Naraku air-cooled Piaggio 50cc two-stroke cylinder 137-88 showing cylinder bore and port openings
Naraku 39.7 mm cylinder kit 137-88 for air-cooled Piaggio 50cc two-stroke engines, showing finned cylinder, piston, rings, pin and gaskets
Underside of Naraku air-cooled Piaggio 50cc two-stroke cylinder 137-88 showing cylinder bore and port openings

Naraku

Naraku 50cc Cylinder Kit for AC Piaggio 2-Stroke

SKU 137-88
$115.00
Shipping calculated at checkout.
Description

Naraku replacement 50cc cylinder kit for Piaggio powered air cooled 2-stroke scooters. Kit includes cylinder, molybdenum coated piston, rings, piston pin, cir clips, head gasket, base gasket, and exhaust gasket.



Fits the following 2-stroke models:

  • Aprilia Scarabeo 50
  • Aprilia Mojito/Habana 50
  • Piaggio Zip
  • Piaggio Liberty 50
  • Piaggio Fly 50
  • Vespa ET2
  • Vespa LX50
  • Vespa S50
  • Vespa Primavera


  • Cylinder Bore: 39.7mm
  • Cylinder Sleeve Outer Diameter: 50.55mm
  • Wrist Pin Diameter: 12mm
  • Total Piston Height: 54mm
Aprilia, Piaggio, Vespa

This product is not intended for use on public roads or land.
Product Diagrams
Features
  • Air-cooled Piaggio 50cc two-stroke replacement top-end kit
  • Includes cylinder, piston, rings, pin, circlips and listed gaskets
  • Finned cylinder with two-stroke ports
Specifications

Store SKU 137-88; listed manufacturer number NK101.01.2; bore 39.7 mm; sleeve outer diameter 50.55 mm; wrist pin 12 mm; total piston height 54 mm; air-cooled Piaggio 50cc two-stroke application.
Model Fitments

Aprilia Scarabeo 50, Mojito/Habana 50; Piaggio Zip, Liberty 50, Fly 50; Vespa ET2, LX50, S50, Primavera. Only applicable air-cooled Piaggio 50cc two-stroke engine versions; verify engine code and 12 mm wrist pin.
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
Since 1989

Supplying parts and accessories for vintage and modern scooters since 1989 – Over Half a Million Served and Counting!

Comprehensive Resource

From wear-and-tear items like tires and oil filters to aftermarket parts from industry-leading brands.

Dealer Focused

With a committed team of dealer-focused sales reps and streamlined pricing and shipping processes, we are dedicated to supporting your business.

Innovative

Our team constantly strives to develop and source the best new products for your scooter.