Amazon.com: Poppet Valve Kit for Mercury 135-200hp 2.0L 2.5L V6 Part Number: 803062T1 fits Mariner XR4 XR6 Magnum II Magnum III V175 V200 series : Automotive
Sierra 18-3563 Poppet Relief Valve | Wholesale Marine
Poppet Valve Kit Mercury / Mariner 3.0L
Poppet Valve ? - The Hull Truth - Boating and Fishing Forum
Amazon.com: 803062T1 Poppet Valve Kit Fit for Mercury 135-200hp 2.0L 2.5L V6, for Magnum II Magnum III XR4 XR6 V135 V150 V175 V200 Replace OEM 8030-1 803062T1 : Automotive