SSP-G 50mm Piston Kit – QMB139 50cc 4-Stroke – 169-203

SSP-G 50mm Piston Kit (169-203) is a premium replacement and performance upgrade for QMB139 50cc 4-stroke scooter engines. Crafted with precision to meet OEM specifications, this piston kit increases engine displacement and provides stronger compression, smoother throttle response, and enhanced reliability.

Perfect for riders upgrading to a 50mm big-bore setup or replacing a worn piston, SSP-G ensures dependable quality at an affordable price.

Features:

• Genuine SSP-G replacement piston kit

• Fits QMB139 50cc 4-stroke engines

• 50mm bore size – ideal for big bore or rebuild applications
  

• Delivers improved performance and engine longevity

• Includes piston, rings, wrist pin, and circlips
  

Specifications:

• Brand: SSP-G

• Part Number: 169-203

• Bore Size: 50mm

• Engine Type: QMB139 / GY6 50 4T (139QMB)

• Material: Forged Aluminum
  

Compatibility:
Designed for scooters with QMB139 4-stroke engines.