The package includes: 2 piece. Part – Designed to replace part number 12311-Z8B-000, with select Honda HRR216, HRS216, HRX217 lawn mower models and GCV160 series engines. Wide Engine Compatibility – Fits Honda GC135, GC160, GC190, GCV135, GCV160, GCV190, GS160 and GS190 small engines used in lawn mowers and outdoor power equipment. Premium Sealing Material – Made from high-quality composite gasket material that resists oil, fuel, heat and pressure for reliable long-term sealing performance. Effective Leak Prevention – Creates a tight seal between the valve cover and cylinder head to prevent oil leaks while keeping dust and debris out of the engine. Easy Installation Fit – Precision-cut for proper alignment and direct installation during routine maintenance or valve cover gasket .