This aftermarket replacement connecting rod bearing set, part number 3070539R91, is specifically designed for Case IH agricultural tractors requiring a 0.25mm undersize for crankshaft repair. As a non-OEM alternative, this set provides a cost-effective solution for maintaining optimal engine performance and extending the lifespan of your machinery. Connecting rod bearings are crucial components within an engine, facilitating the smooth rotation of the crankshaft by reducing friction between the connecting rod and the crankshaft journal. Each set includes four high-quality bearings, precisely manufactured to meet the specifications required for a 0.25mm undersize application. This ensures a proper fit and reliable operation after crankshaft regrinding. When engine bearings wear out, they can lead to reduced oil pressure, increased engine noise, and ultimately, severe engine damage. Replacing them with a correctly sized undersize set is essential for a successful engine overhaul. This compatible connecting rod bearing set is suitable for a wide range of Case IH tractor models, including the 385, 485, 585, 685, 885, 395, 495, 595, 695, 895, 995 series, as well as the 3210, 3220, 3230, 4210, 4220, 4230, and 4240 series. Ensure proper engine diagnosis and crankshaft measurement before installing undersize bearings to guarantee compatibility and optimal engine function. This aftermarket part offers a dependable solution for your Case IH engine repair needs.