This Sierra 5256 Ignition Tune Up Kit is the perfect addition for your OMC Cobra Stern Drive Mallory 8 CYL 172531. With a brand name you can trust and a manufacturer part number of 19-5256, this kit will provide you with everything you need to adjust your ignition for optimal performance. The kit includes all the necessary components and parts to tune up your engine, ensuring that it runs smoothly and efficiently. Whether you're a professional mechanic or a weekend DIY enthusiast, this kit is easy to install and will provide you with a reliable and high-performing ignition system. Don't miss out on this opportunity to improve your boat's engine performance. LOCATION 5-30.