Having issues with the primer or fuel system on your Johnson or Evinrude outboard? This JLM MARINE Service Valve Kit is your all-in-one fix. It's designed to replace the common failing primer solenoid service valve on most Johnson and Evinrude models that have a primer system (just not the 1993 9.9 & 15 HP models). The kit includes everything you need: the main service valve with O-ring, and the cover with its gasket. It directly replaces OEM part numbers 175158, 437228, 341297, 341071, and 331365, as well as the Sierra aftermarket equivalents 18-7044, 18-0871-1, and 18-0993. This is a complete kit, so you don't have to hunt down individual pieces. Installation is straightforward for anyone familiar with basic outboard maintenance, letting you replace worn components efficiently and get back on the water. Keep your engine's fuel primer system in top shape with this reliable repair kit.