- Home Page /
- Automotive /
- Motorcycle & Powersports /
- Parts /
- Engine /
- Cylinder Heads /
- 57.4mm Cylinder Head Assembly Valve with GY6 ...
0 ratings
Item #:
115918032
57.4mm Cylinder Head Assembly Valve with GY6 150cc Chinese 152QMI 157QMJ ATV Quad Installed Scooter Moped Parts
Item #:
115918032
XCD 127
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Sunday, August 02
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fit for various 4-stroke GY6 150cc scooters and ATVs.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Precision Engineering
Crafted with meticulous attention to detail, ensuring optimal air and fuel flow for improved performance in GY6 150cc engines, enhancing acceleration and overall power output.
Versatile Compatibility
Designed to seamlessly fit various models, including ATVs and scooters, providing a reliable upgrade for diverse vehicles equipped with the 152QMI and 157QMJ engines.
Durable Materials
Manufactured using high-quality materials that withstand extreme conditions, ensuring long-lasting durability and consistent performance, reducing maintenance frequency and increasing rider confidence.
Product Details
| Item Weight | 5 lbs (2.27 kg) |
Who Should Buy?
-
ATV Enthusiasts
Ideal for ATV owners looking to enhance performance with a reliable cylinder head assembly.
-
Scooter Mechanics
Perfect for mechanics needing a high-quality replacement part for GY6 150cc scooters and mopeds.
-
Revamped Engine Projects
Great choice for DIY enthusiasts upgrading or rebuilding their 152QMI and 157QMJ engines.
-
Non-GY6 Users
Not suitable for vehicles with engines other than GY6 150cc specifications.
-
Budget Consumers
May not appeal to users seeking low-cost alternatives while maintaining quality specifications.
-
Racing Applications
Not ideal for racing enthusiasts requiring specialized high-performance cylinder head assemblies.
Product Description
57.4mm Cylinder Head Assembly Valve with GY6 150cc Chinese 152QMI 157QMJ ATV Quad Installed Scooter Moped Parts
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is a 57.4mm Cylinder Head Assembly Valve?
Answer: The 57.4mm Cylinder Head Assembly Valve is a critical component of the engine for GY6 150cc vehicles, including ATVs and scooters. It regulates airflow and exhaust gas, enabling efficient engine performance. When the cylinder head assembly is properly maintained, it ensures optimal combustion, which leads to increased power and better fuel efficiency. If you are experiencing performance issues or excess smoke from your exhaust, replacing the cylinder head assembly may resolve these problems. -
Question:
Which vehicles are compatible with the 57.4mm Cylinder Head Assembly Valve?
Answer: This cylinder head assembly is compatible with GY6 150cc engines, which are commonly found in Chinese-made ATVs, quads, scooters, and mopeds. Specifically, models using the 152QMI and 157QMJ engine configurations can utilize this assembly. It’s crucial to check your vehicle’s specifications before purchasing to ensure compatibility, as using an incompatible part can lead to performance issues or engine damage. -
Question:
How do I know if I need to replace my cylinder head assembly?
Answer: Signs that you may need to replace your cylinder head assembly include noticeable engine knocking, reduced power, overheating, or oil leaks. In some cases, you might also observe a decrease in fuel efficiency or an increase in exhaust emissions. If you note these symptoms, it’s prudent to inspect the assembly or consult a professional mechanic. Regular maintenance and inspections can help prevent severe engine issues down the line. -
Question:
What are the steps for installing the cylinder head assembly?
Answer: To install the cylinder head assembly, you should first ensure that the engine is completely cooled. Disconnect the battery, remove the old cylinder head, and clean the mounting surface. After positioning the new assembly, torque the bolts as per the manufacturer’s specifications to ensure a proper seal. Following this, you can reconnect the battery and perform a test run to check for leaks or unusual noises. It’s advisable to have a service manual on hand for detailed instructions specific to your vehicle. -
Question:
Can I use aftermarket parts for the cylinder head assembly?
Answer: Yes, aftermarket parts can often be used for the cylinder head assembly, but it’s essential to ensure they match the dimensions and specifications of your original equipment. Quality aftermarket parts can provide better performance and durability, but it’s advisable to purchase from reputable manufacturers. Researching customer reviews and ratings can also help in making an informed choice, minimizing the risk of compatibility issues. -
Question:
Why is a 57.4mm size significant for cylinder head assemblies?
Answer: The 57.4mm size is significant as it directly influences the performance characteristics of the engine. Larger cylinder heads can provide increased airflow, which enhances engine breathing, leading to improved horsepower and torque. However, it’s critical to balance size with engine design parameters; thus, this specific size is optimized for the GY6 150cc platform to ensure no negative impacts on engine reliability or efficiency. -
Question:
What maintenance should I perform on my cylinder head assembly?
Answer: Regularly checking for signs of leaks, cracks, or wear helps maintain your cylinder head assembly. Cleaning the area around the assembly to prevent dirt accumulation is also recommended. Additionally, periodic checks of the torque settings on the assembly bolts can help prevent loosening over time. Keeping an eye on engine performance and conducting routine oil changes will also facilitate longer lifespans for the cylinder head assembly and engine overall. -
Question:
Are there specific brands known for quality cylinder head assemblies?
Answer: Several brands are known for producing high-quality cylinder head assemblies for GY6 engines, including performance-oriented companies. It's recommended to choose brands with a solid reputation in the motorcycle and ATV communities, and those that offer detailed specifications. Checking user feedback and product reviews can help you identify reputable brands that deliver reliability and performance for your particular model. -
Question:
What tools do I need for installation?
Answer: For installing the cylinder head assembly, you will need a set of standard hand tools including wrenches, sockets, and screwdrivers. A torque wrench is crucial for ensuring that bolts are tightened to the manufacturer’s specifications, which helps avoid leaks or damage. Additionally, having a gasket scraper and engine oil for lubricating bolts can make the installation smoother and more efficient. -
Question:
Where can I buy the 57.4mm Cylinder Head Assembly Valve with GY6 150cc?
Answer: You can purchase the 57.4mm Cylinder Head Assembly Valve with GY6 150cc from Ubuy. They offer a selection of parts for Chinese scooters, mopeds, and ATVs, ensuring you find the right components for your vehicle. Ubuy is known for its reliable service and quality products, making it a trusted source for your necessary parts in Saint Lucia.
FixRightPro Cylinder Heads Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
XCD 127
Order now and get it around Sunday, August 02
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Compatible with multiple 150cc GY6 scooters and ATVs.
- Includes popular models like Kymco, Taotao, and Lance.
- Cylinder head size measured at 57.4mm for optimal performance.
- Designed specifically for 4-stroke engines.
- Easy installation for hassle-free upgrades.
- Solid construction ensures long-lasting durability.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.