This aftermarket exhaust manifold gasket is a direct OE replacement for Yamaha factory part numbers 66V-14613-00-00 and 66V-14613-01-00, designed for Yamaha watercraft in the 1200/1300 family—including GP1200, GP1200R, GP1300R, GP1300NPV, XL1200, XL1200 LTD, XLT1200, and XR1800—produced roughly between 1999 and 2008. It seals the exhaust manifold to the cylinder head surface to prevent leaks in the exhaust path, helping maintain proper exhaust flow and preventing gas leakage. As an aftermarket replacement, it provides a like-for-like alternative that matches OEM form and function. Replaces OEM 66V-14613-00-00 and 66V-14613-01-00.
