Get it right the first time. MERCURY OEM part 43035A4 ensures factory engineering designed for your exact engine — exactly what your engine was designed around. Don’t let aftermarket parts ruin your boating season. Aftermarket parts often fail when you need them most. MERCURY OEM components are purpose-built for marine use with materials that resist saltwater corrosion, withstand constant vibration, and survive UV exposure. Factory engineering ensures reliable performance — not just initial fit, but long-term reliability. With MERCURY OEM part 43035A4, you get reliability you can trust and factory-backed quality. More time cruising, less time troubleshooting. Four decades serving the marine industry has taught us: genuine parts simply work better and last longer. FITS: Mercury/Mariner Outboards: HP Range: 30, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 115, and 125 HP. Key Years: 1987-current (2-stroke), 50-150HP (4-stroke). Serial Numbers: Fits USA 0B209468 and newer, and Belgium 9523034 and newer STAY OUT ON THE WATER LONGER WITH GENUINE OEM PARTS FROM US BOATWORKS. Over 2 million parts in stock including NLA and hard-to-find parts. Can’t find what you’re looking for? Call or text us: 913-342-0011