Cylinder Kit + Head 50cc 39mm long 69.5mm valves no SLS Citomerx 4-stroke GY6 Kymco 139QMB 139QMA Euro 4/5
Prices plus VAT plus shipping costs
Unfortunately, this item is already sold out due to high demand.
Further variants / accessories
- Item no: 107540
- EAN: 4060861231803
- Manufacturer: Citomerx
- Manufacturer no.: 107540
This Citomerx cylinder kit with head is the perfect choice to restore or upgrade your 4-stroke China GY6 or Kymco engine. Featuring a 50cc displacement, 39mm bore, and long 69.5mm valves, it provides a durable and reliable alternative to the original part. The SLS-free design simplifies installation and ensures clean power delivery. Whether for a rebuild or replacement during engine repair – this kit impresses with precise manufacturing and an ideal fit for Euro 4/5 models.
Product Advantages:
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Precise fit for GY6 4-stroke engines with 139QMB/139QMA
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SLS-free design for easier installation and fewer failures
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Durable construction for long service life
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Improved cooling thanks to refined head design
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Ideal replacement for Euro 4/5 models
Scope of Delivery:
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1x 50cc cylinder
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1x cylinder head with 69.5mm valves
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1x piston
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1x piston rings
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1x pin
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2x circlips
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1x gasket set
| Product type: | Cylinder set |
| Cylinder head dimensions (LxWxH): | 135 x 125 x 60 mm |
| Piston pin diameter: | 13 mm |
| Displacement: | 50 cc |
| Can the original cylinder head be used?: | Yes |
| Cylinder head stud bolt spacing: | 50 x 50 mm |
| Tuning & Styling Part: | No |
| Piston ring profile: | Rectangular ring |
| Vintage part: | No |
| Cylinder head stud diameter: | 8 mm |
| Piston special feature: | mit Abstreifring |
| Surface finish: | Matt |
| Cylinder special feature: | Kettenspanner Lochabstand: 40mm / M6 |
| GTIN: | 4060861231803 |
| Note: | Ohne SLS / lange Ventile 69,5mm |
| Cylinder dimensions (LxWxH): | 115 x 110 x 70 mm |
| Scope of delivery: | Gasket set, Cylinder, Cylinder head, Kolben Set |
| Cylinder stud distance: | 50 x 50 mm |
| Cylinder stud bore: | 8 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: | 107540 |
| 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 / Kymco 139QMB 139QMA |
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.
