Breather Hose One-Way Valve

【Available Colors】: Black, Silver

【Available Sizes】: 6mm / 8mm / 10mm / 12mm

After installing the crankcase breather one-way valve, revving becomes extremely smooth, and coasting off-throttle is extended. The engine is less prone to thermal degradation. Currently available in 8mm and 10mm specifications.
1. Function: After installation, acceleration is smoother, off-throttle jerk is reduced, and it helps reduce engine oil thermal degradation during summer.
2. Installation: Install the one-way valve on the cylinder head breather hose, as close to the air filter as possible for easy removal during oil changes, making oil filling smoother! If oil drainage is slow due to negative pressure in the crankcase, loosening the oil dipstick will allow for rapid drainage! Before installation, test the one-way valve for proper flow direction; the arrow should point toward the air filter.
3. Maintenance: It is recommended to clean and maintain the one-way valve every 5,000 km. After disassembly, clean with brake cleaner. Do not use carburetor cleaner, as it is too aggressive and will damage the valve components, causing air leaks.

※The vehicle model may have different specifications in different regions and may not be compatible for installation.

【Pre-order Notice】
Before placing an order, please carefully confirm the desired color, size, and other information.
Most products have lead times provided after the order is placed; therefore, some items may be discontinued or require a long waiting period for shipment.
If an order cannot be fulfilled due to manufacturer stock shortages or other factors, it will not be processed, and no charges will be incurred.
Please be aware that manufacturers may unilaterally change specifications or exterior designs, which may result in the packaging or the product itself differing from the images on the product page.
If a manufacturer's change in design or specifications prevents the product from performing as expected at the time of order, please contact our customer service for further assistance.
Products undergo multiple shipping processes from order to delivery, which may result in deformation or damage to the packaging, while the product itself remains intact and functional.
【Return Policy】
If you require a return, please apply via the returns section; ensure the product's appearance is maintained and it is sealed in its original packaging.
Upon receiving your return request, we will dispatch a logistics provider to collect the item as soon as possible.
For non-human-induced defects, please apply for a return within 7 days of receipt.
【Authenticity Guarantee】
For products with an authenticity guarantee, if any item is found to be a suspected counterfeit and is proven as such through legal proceedings and a final court judgment, the customer will be compensated 10 times the original purchase price.