If you're unsure please message us with your full serial / model number and we will be happy to help you pick the right part. For any other parts Mercury, Yamaha, Evinrude, Johnson, Suzuki, Honda or Mercruiser, please don't hesitate to ask as we have a huge range of new and second-hand. We do not cover contributing damages.We recommend with all our fuel system parts a full clean and adjustment before installing. Injectors and electronic fuel pumps have been electronically tested but not flow tested before sale. Power heads & engine blocks. We will cover any broken or damaged internal mechanical parts only before installation.