Remanufactured Mercury & Mariner 4-Cylinder Outboard Powerheads & Short Blocks

No time for a lengthy Marina repair downtime on a blown-up outboard? Let OBParts help you get back on the water quickly with our Mercury & Mariner remanufactured 4-cylinder outboard powerheads and Short Blocks. Completely assembled and ready to install. By combining high-quality parts and professional technicians to build our powerheads, OBParts has become the internet's leading seller of remanufactured powerheads and short blocks. Whether you’re a DIY enthusiast working on your own outboard or a repair shop handling multiple engines, our powerheads are a quick solution to get back to fishing!