【PRECISION FIT & COMPATIBILITY】 This kit is engineered for Yamaha Large V6 200-300HP motors (1996-2018), including HPDI, OX66, 2-Stroke, and 4-Stroke models. PLEASE NOTE: It is not compatible with Showa style units or Yamaha V8 engines. Always verify the product images and dimensions for final confirmation.
【DIRECT OEM REPLACEMENT】 This cylinder cap kit matches the exact specifications and performance of OEM numbers 61A-43821-00-00 and FSM040, ensuring perfect form, fit, and function.
【MILITARY-GRADE DURABILITY & LEAK-PROOF】 Machined from premium aircraft-grade aluminum and hardened with a Type 3 Mil-Spec anodized coating. Integrated Viton & Urethane seals resist saltwater corrosion, impacts, and extreme pressure, guaranteeing a leak-proof seal.
【EASY 10-MINUTE INSTALLATION】 Our kit includes everything you need for a quick fix. Simply use a standard cap removal tool to swap the old, leaking cap with this new one. No special skills or tools are required, saving you time and expensive mechanic fees.
【LIFETIME RELIABILITY & SUPPORT】 Your purchase is protected by our 30-day no-hassle refund guarantee and a lifetime technical support promise. If you have any questions during installation, our expert team is here to help.