New
Arrivals/Restock
Universal GY6 100cc 50mm 4 Stroke 139QMB 139QMA Motorcycle Engine Big Bore Cylinder Rebuild Kit Cylinder Assembly 64mm Valve
4.0 (19 items)
Limited Time SaleUntil the end
18
05
17
US$66.46 cheaper than the new price!!
Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Free cash-on-delivery fees for purchases over $99
See all stores
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
Used US$44.31
Product details
| Management number | 239294196 | Release Date | 2026/07/14 | List Price | US$44.31 | Model Number | 239294196 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
Valve length -64 mmInlet valve diameter-18.5mm.Exhaust valve diameter-16mmCombustion chamber diameter -50 mmInner diameter of cylinder: 50 mmOutside diameter of piston pin: 13mm
- Compatibility; Suitable for GY6 100cc, 50mm 4-stroke engines, 139QMB, 139QMA and other models, designed for large displacement modification.
- Durability; Selected strong and can withstand the work and extend the service life of cylinders and cylinder heads.
- Performance improvement; 64mm valve design improves airflow efficiency, increases engine power output, and enhances acceleration performance.
- Stability; Provides smooth engine , reduces friction and heat , and ensures long-term .
- Easy installation; The rebuild kit includes the cylinder and related components, and the simple installation design allows users to quickly complete or replacements.
| ASIN | B0DY6H3Y96 |
|---|---|
| Department | Unisex Adult |
| Item Weight | 1.76 ounces |
| Manufacturer | Xzdfvwfu |
| Number of pieces | 1 |
| Assembly required | No |
| Item model number | Xzdfvwfu16378 |
| Package Dimensions | 1.18 x 0.79 x 0.39 inches |
Bestseller ranking
Cylinder Heads
![Cylinder Works 60003-K01HC Standard Bore Cylinder Kit, High compression Compatible With/Replacement For Polaris General 1000 EPS, RZR 1000 60 Inch 2016, RZR XP 1000 2014-2018, RZR XP 1000 [INTL] UTV](https://m.media-amazon.com/images/I/71jf-z+RISL._AC_SL1500_.jpg)
Customers who viewed this product also viewed
Lew's Fishing Rod & Reel Combos
Correction of product information
If you notice any omissions or errors in the product information on this page, please use the correction request form below.
Correction Request Form