Improve your diesel engine's performance with the Cummins 3902343 cylinder head alignment dowel - a top choice for 89-18 models. Made for perfection, this dowel ensures ideal alignment, laying the foundation for peak engine performance. With the Cummins dowel, installation is made easier and more precise, indicating a substantial leap in construction. This quality part can help bridge the gap between everyday machinery usage and exceptional performance, thus aligning with the objectives of both professional mechanics and amateur motor enthusiasts. Choosing the Cummins 3902343 cylinder head alignment dowel is not just replacing a part, it's about investing in your engine's power and longevity.