Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines
HomeStore

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines

$49.99
Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines—
$49.99

The Story

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 engines.

PAIR is an acronym for Pulsed Secondary Air Injection System. It is an emissions control system used to lower HC and CO emissions. It works by allowing air into the exhaust flow.

  • Intake Port Diameter: 17mm
  • Exhaust Port Diameter: 17mm
  • Valve Length: 69mm 
  • Emission Control System: Pulsed Secondary Air Injection System (PAIR)
Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines - Image 2

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines - Image 3

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines - Image 4

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 Engines - Image 5

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Description

Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 engines.

PAIR is an acronym for Pulsed Secondary Air Injection System. It is an emissions control system used to lower HC and CO emissions. It works by allowing air into the exhaust flow.

  • Intake Port Diameter: 17mm
  • Exhaust Port Diameter: 17mm
  • Valve Length: 69mm 
  • Emission Control System: Pulsed Secondary Air Injection System (PAIR)