Hardware: 3 Studs, 3 Nuts, 3 Springs; Gaskets: 1 Flange More like a complete kit than a single part, many of our Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience. Tech Tips Alternate/OEM Part Number(s): 10045321 DORMAN Warranty Information Limited lifetime. Manifold with Catalytic Converter 5 years/50,000 miles. Mirror glass 12 months.