This Yamaha oil check valve is a genuine OEM part number 8CH-1316A-00, made in Japan. It is designed for use on SRX V-Max Venture 600 and 700 ATVs, and is colored silver. The part number for this item is 8CH-1316A-00, and it is a superseded part number. This valve is an essential component for ensuring proper engine function, and is a replacement for a damaged or worn out valve. It is compatible with Yamaha brand ATVs, and is an excellent choice for anyone looking to maintain their ATV's performance.