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Crowd Pleaser 47mm Qmb139 Non Emissions Head - 69mm Valves Travel Size [sFAIY7DE]

$16.99 $54.99 -69%

High-Performance 47mm QMB139 Non Emissions Cylinder HeadIntroducing the ultimate upgrade for your 50cc QMB139 4-stroke engine with our 47mm Non Emissions Cylinder Head. This high-quality cylinder head is designed to enhance the performance of your en

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Crowd Pleaser 47mm Qmb139 Non Emissions Head - 69mm Valves Travel Size [sFAIY7DE]

High-Performance 47mm QMB139 Non Emissions Cylinder Head

Introducing the ultimate upgrade for your 50cc QMB139 4-stroke engine with our 47mm Non Emissions Cylinder Head. This high-quality cylinder head is designed to enhance the performance of your engine while ensuring compliance with emissions regulations. With its impressive 69mm valves, this cylinder head is the perfect choice for those looking to maximize power and efficiency.
  • Improved Performance: The 47mm bore and 69mm valves provide increased airflow, resulting in a more powerful and responsive engine.
  • Compliance with Regulations: This cylinder head meets non-emissions standards, making it an ideal choice for environmentally conscious riders.

Key Product Specifications

Crafted with precision, this cylinder head boasts several key specifications that set it apart from the competition. The 47mm bore diameter offers a significant increase in engine displacement, while the 69mm valves ensure optimal airflow and combustion efficiency. This cylinder head is designed to work seamlessly with a 72cc Big Bore Kit, providing an effortless upgrade path for your engine.
  • 47mm Bore Diameter: Significantly increases engine displacement for enhanced performance.
  • 69mm Valves: Maximizes airflow and combustion efficiency for better performance.

Practical Applications and Benefits

Whether you're a professional racer or an avid enthusiast, this 47mm QMB139 Non Emissions Cylinder Head offers numerous practical benefits. Its powerful performance and compliance with emissions regulations make it an ideal choice for a wide range of applications, including street racing, off-road riding, and daily commuting. By upgrading to this cylinder head, you'll experience improved acceleration, increased top speed, and a more enjoyable riding experience.
  • Enhanced Performance: Achieve better acceleration and top speed with the increased power output.
  • Compliance with Regulations: Ride with peace of mind, knowing that your engine meets emissions standards.

What Our Customers Say

January 22, 2026

Absolutely no complaints!

The product is simply superb in quality.

- Paxton S..

January 22, 2026

Absolutely no complaints!

It's a very stable system with a crash-free and smooth experience.

- Upsilon_Techie.

January 22, 2026

Absolutely no complaints!

I'm very pleased with the solid feel.

- Sloane M..

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