The Cummins ISB 6.7 Engine 2008 To 2017 Fuel Injector O-Ring Kit is an ideal replacement for your specified engine. This kit includes 6 black rubber O-rings and 6 washers, with dimensions of 0.826 inch inside diameter, 1.062 inch outside diameter, and 0.118 inch thickness. Made from quality materials, it is designed to resist damage from fuel, oil, and extreme temperatures. This cost-effective solution offers original equipment quality at a competitive price. Quality tested and fitting most makes and models from 2008 to 2017 with Cummins ISB 6.7 engines, it is a durable and reliable choice. Direct OE replacement numbers are Cummins 3976371 and 3977393.