Cylinder Kit + Head 150cc 57.4mm (incl. valves, without SLS) for 4-stroke China GY6 157QMJ / Tuning for GY6 152QMI Citomerx part no. 107544
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IN STOCK - Delivery time 1-3 working days
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- Item no: 107544
- EAN: 4060861231841
- Manufacturer: Citomerx
- Manufacturer no.: 107544
This Citomerx cylinder kit with head offers a noticeable performance boost for your 4-stroke China GY6 157QMJ or GY6 152QMI engine. With its precisely manufactured 150cc cylinder (57.4mm) and optimized cylinder head with pre-installed valves, you'll experience better acceleration and a higher top speed. Perfect for riders wanting a sporty upgrade for their scooter or moped. The SLS-free design makes installation easier and is ideal for tuning purposes. Citomerx ensures reliable, long-lasting performance.
Product Benefits:
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Powerful 150cc tuning kit for noticeable power increase
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Cylinder head with pre-installed valves for easy installation
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Precision fit for GY6 157QMJ and 152QMI engines
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No SLS – perfect for tuning and simplified assembly
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Durable, robust Citomerx quality
Scope of Delivery:
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150cc 57.4mm cylinder
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Cylinder head with pre-installed valves
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Piston
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Piston rings
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Piston pin
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Circlips
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Gasket set
Product type: | Cylinder set |
Cylinder head dimensions (LxWxH): | 140 x 140 x 60 mm |
Piston pin diameter: | 15 mm |
Displacement: | 150 ccm |
Can the original cylinder head be used?: | Yes |
Cylinder head stud bolt spacing: | 54 x 54 mm |
Tuning & Styling Part: | No |
Piston ring profile: | Rectangular ring |
Vintage part: | No |
Cylinder head stud diameter: | 9 mm |
Piston special feature: | mit Abstreifring |
Surface finish: | Matt |
Cylinder special feature: | Kettenspanner Lochabstand: 42mm / M6 |
GTIN: | 4060861231841 |
Note: | Ohne SLS |
Cylinder dimensions (LxWxH): | 130 x 130 x 90 mm |
Scope of delivery: | Kolben Set, Gasket set, Cylinder, Cylinder head |
Cylinder stud distance: | 54 x 54 mm |
Cylinder stud bore: | 9 mm |
Color: | Grey |
Spark plug thread: | M10 x 1 |
Number of piston rings: | 4 |
Features: | Durable, Corrosion resistant |
Engine type: | 4-stroke |
Scope of delivery: | 1x cylinder set |
Manufacturer number: | 107544 |
Country and region of manufacture: | China |
Type of motorcycle: | Scooter |
Offer package: | Yes |
Units quantity: | 1 |
Description of the package content: | Cylinder head cylinder set |
Manufacturer warranty: | 2 years |
Material: | Several materials |
Type: | Standard |
suitable for: | 4-stroke China GY6 157QMJ / Tuning for GY6 152QMI |
ZS 2Radteile GmbH
Unterbibracherstr. 3
95519 Vorbach
Web page https://www.citomerx.de
Email: info@zweiradteile.net

Citomerx stands for quality, precision, and performance for motorcycles, scooters, mopeds, and quads. As a renowned manufacturer, Citomerx offers a broad range of parts and accessories designed for both DIY enthusiasts and professional workshops. With cutting-edge manufacturing technology, strict quality controls, and innovative design, Citomerx sets new standards for durability and performance.
From cylinder kits and variator weights to exhaust systems and brake components, Citomerx reliably delivers solutions that meet the highest demands. Known for precise fit and excellent value for money, Citomerx parts are the first choice for maintaining and enhancing two-wheelers.
Citomerx understands the needs of riders and offers products engineered for maximum durability and efficiency. Constantly evolving to keep pace with market trends and technological advances, Citomerx is a trusted name for those who value performance, safety, and modern design.
Choose Citomerx – for uncompromised riding pleasure and reliable technology.