This brand new OEM spark plug kit is a must-have for any boat owner with a Volvo Penta engine. The kit includes all necessary components for optimal ignition and starting performance. The manufacturer part number is 3851857, ensuring a perfect fit for your engine. Whether you're looking to upgrade your ignition system or simply replace worn out spark plugs, this kit has you covered. Don't let a faulty ignition system keep you from enjoying your time on the water. Trust in the quality of Volvo Penta and order your spark plug kit today.