Product Details
Description
NCY Gasket Kit (50mm); Dio/DD50 Big Bore Kit
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Fitment Notes: Big Bore
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 4 × 3.5 × 1 in |
| Condition | New |
|---|
The NCY 50mm Gasket Kit provides all the top-end sealing gaskets needed for a complete big bore installation or cylinder rebuild on the Honda Dio, Elite 50 (AF16E), and compatible SYM DD50 platforms running a 50mm bore. Proper gasket replacement is essential any time the cylinder head or jug is removed — reusing old gaskets risks compression leaks, coolant intrusion, and oil seepage that can quickly undo the work of a fresh top-end build. This kit is sized specifically for the 50mm bore diameter to ensure correct sealing surface coverage and crush thickness.
- Fits Honda Dio, Elite 50 (AF16E), and compatible SYM DD50 platforms with 50mm big bore cylinders
- Includes head gasket and base gasket for a complete top-end seal
- Essential replacement at every top-end rebuild or big bore installation
- Pairs directly with the NCY 50mm Piston Ring Set for a complete top-end rebuild kit
- Sold as a set
California Residents: This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.





