BestPrice cylinder head 50 ccm complete with secondary air system (SLS) for GY6 4-stroke Chinese import scooters

The cylinder head closes the combustion chamber of the GY6 engine at the top and controls the gas exchange via the valves. This component is fully assembled and contains the secondary air system (SLS), which serves for exhaust gas aftertreatment in vehicles compliant with emission standards. It fits 50 ccm four-stroke engines of the GY6 type, which are installed in a variety of Chinese import scooters.

Important Note:

• For vehicles of this engine series, manufacturers have frequently made component-side changes - therefore, the image should be compared with the existing original part before purchase.

Product Features:

• Complete cylinder head for the GY6 50 ccm 4-stroke engine
• With integrated secondary air system (SLS) - suitable for vehicles with SLS connection
• Two valves installed including valve springs
• External cooling fins for heat dissipation to the ambient air (air-cooled)
• Direct replacement for vehicles equipped with SLS from the factory

Since the GY6 engine is manufactured in numerous variants with partially different attachments, the manufacturer expressly recommends comparison with the original part before installation.

Technical Details:

• Product category cylinder head complete with SLS
• Engine type GY6 50 ccm 4-stroke
• Head height 60 mm
• Valve length 64 mm
• Bore 39 mm
• Manufacturer BestPrice

Vehicle and Model Compatibility:

• The cylinder head fits 50 ccm four-stroke scooters with GY6 engines from a variety of manufacturers, including Baotian, Benzhou, Flex Tech, Huatian, Jonway, Kymco, Kreidler, Nova Motors, Qingqi, REX, Xinling, Xintian, Znen, Zongshen as well as numerous other import brands. Since the GY6 engine is built in various versions, it must be checked before installation whether the vehicle is equipped with a secondary air system from the factory.

Assembly and Application Instructions:

• Completely disassemble the old cylinder head and clean the sealing surface on the cylinder. Place the new cylinder head with the appropriate cylinder head gasket and tighten the fastening screws to the prescribed tightening torque in the sequence specified by the manufacturer. After installation, check and if necessary adjust the valve clearance and check the SLS connection for leaks.

Note on Inspection Before Purchase:

• Before purchase, compare the vehicle model, the engine variant (with or without SLS), and the image against the existing original part, as deviations in component geometry can occur with GY6 engines on the manufacturer's side.