Cylinder Kit + Head 50cc 39mm (69.5mm long valves) (with SLS) for 4-stroke China GY6 Kymco 139QMB 139QMA Euro 4/5 Citomerx
- Manufacturer: Citomerx
- Item no: 107539
- Manufacturer no.: 107539
- EAN: 4060861231797
Item data
| 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: | 4060861231797 |
| Note: | Mit SLS / lange Ventile 69,5mm |
| Cylinder dimensions (LxWxH): | 115 x 110 x 70 mm |
| Scope of delivery: | Cylinder head, Cylinder, Gasket set, 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: | 107539 |
| 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 |
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This Citomerx Cylinder Kit + Head 50cc 39mm with 69.5mm long valves (incl. SLS) is the perfect choice to give your 4-stroke China GY6 or Kymco 139QMB / 139QMA engine (Euro 4/5) new power. Thanks to precise manufacturing and solid materials, this kit ensures reliable performance and long service life. Ideal for replacing worn or defective original parts, this complete kit allows quick and easy repair with perfect fit — no additional modifications needed.
Product advantages:
✔️ Perfect fit for China GY6, Kymco 139QMB/139QMA Euro 4/5
✔️ Complete set including cylinder head with SLS
✔️ Durable and solid design for high riding comfort
✔️ Easy installation without rework
✔️ Restores original engine performance
Scope of delivery:
-
1x cylinder 50cc 39mm
-
1x cylinder head with SLS
-
1x valves (69.5mm long, pre-assembled)
-
1x gasket set
ZS 2Radteile GmbH
Unterbibracherstr. 3
95519 Vorbach
Web page https://www.citomerx.de
Email: info@zweiradteile.net
| 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 | 4060861231797 |
| Note | Mit SLS / lange Ventile 69,5mm |
| Cylinder dimensions (LxWxH) | 115 x 110 x 70 mm |
| Scope of delivery | Cylinder head, Cylinder, Gasket set, 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 | 107539 |
| 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 |
Citomerx spare parts - precision, quality and top performance for your two-wheeler
Citomerx is an established brand in the field of spare parts and accessories for motorcycles, scooters, mopeds and quads. The company stands for precisely manufactured products, a wide range and excellent value for money. Riders and workshops who value reliable quality, a long service life and a high degree of fitting accuracy have been placing their trust in Citomerx for years.
Comprehensive range for all requirements
The Citomerx range includes far more than just standard spare parts: In addition to cylinder kits and variomatic weights, there are high-performance brake systems, robust clutches, electrical components such as alternators and starters as well as exhaust systems and carburetors. Many products are not only intended as replacements for original parts, but also offer a noticeable improvement in performance and durability thanks to technical optimizations. This allows drivers to keep their vehicle in top shape or optimize it in a targeted manner.
Precise fit and easy installation
Citomerx is particularly valued for the precise fit of its parts. Whether you are a hobby mechanic or a professional workshop - installation goes smoothly, as each component is precisely matched to the respective vehicle model. This saves time, ensures greater safety and reduces wear.
Suitable for everyday use and resilient
Another advantage of Citomerx is its consistent focus on suitability for everyday use. All products are designed for high loads and can withstand intensive use - whether in city traffic, on long tours or in sporty use. This makes Citomerx the right choice for all those who rely on technology that functions reliably and at the same time guarantees riding pleasure.
The advantages of Citomerx at a glance
- ✔️ Precise fit - easy installation without compromise
- ✔️ Wide range - from cylinder kits and brakes to electrics and exhaust systems
- ✔️ Optimized performance - many parts offer noticeable improvements over standard components
- ✔️ High load capacity - developed for everyday, touring and sporty use
- ✔️ Fair price-performance ratio - premium quality at attractive conditions
Conclusion: Citomerx impresses across the board
Whether for regular maintenance, necessary repairs or targeted tuning: Citomerx offers the right parts for almost every vehicle model. Drivers who value quality, reliability and durability consciously choose this brand.
With Citomerx, you are not only investing in spare parts, but also in the safety, value retention and performance of your two-wheeler. If you are looking for riding enjoyment without compromise, Citomerx is the right choice.
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