Don’t compromise on reliability. Genuine MERCURY OEM part 864591T02 delivers factory engineering designed for your exact engine — exactly what your engine was designed around. Every marine engine needs factory-quality parts to perform reliably. Aftermarket parts often fail when you need them most. That’s why MERCURY engineers their components to strict specifications using proven marine-grade materials. Aftermarket parts compromise on quality to lower costs, leading to premature failure. OEM parts are built to last. Make the smart choice with MERCURY factory part 864591T02. Reliability you can trust. Genuine OEM quality means dependable performance and peace of mind, season after season. Over 40 years in the marine industry confirms: you can’t beat factory parts for reliability. FITS: This replacement exhaust elbow features a 4″ outer diameter with 14° down angle. Application Info: Fits 2004 & newer MerCruiser V6/V8 305, 350, & 377 CID 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