Keep your Duramax diesel engine running strong with this comprehensive re-ring kit designed for 2011-2016 LML 6.6L engines. This complete package includes everything needed for a professional engine rebuild: a full engine gasket set, eight precision connecting rod bearings, crankshaft main bearings, thrust washers, and piston rings. Compatible with Chevrolet Express 2500, 3500, and 4500 models, as well as Chevrolet Silverado 2500 HD and 3500HD trucks from 2011-2016. Also fits GMC Savana 2500 and 4500 vans. Assembly is required for installation. This 12-pound kit comes with all components neatly packaged for easy inventory and installation. The machined components are manufactured to meet OE specifications for reliable performance. Professional installation is recommended to ensure proper engine operation.