One New Aftermarket Replacement Exhaust Manifold Center Section Fits International Harvester (Fits Case IH) TractorsThis aftermarket replacement exhaust manifold center section Fits International Harvester (IH) diesel tractors and industrial/construction models equipped with naturally aspirated diesel engines. The center section is one of three pieces that make up the full exhaust manifold assembly on these tractors. It channels exhaust gases from the engine's cylinder head to the exhaust stack, helping maintain engine performance and reducing harmful emissions from the exhaust system.Compatible ModelsFits International Harvester (IH) / Fits Case IH Agricultural Tractors: 806 (naturally aspirated diesel), 856 (naturally aspirated diesel)Fits International Harvester (IH) / Fits Case IH Industrial/Construction Tractors: 2806, 2856Replaces Part Number(s):326699R1, 326699R2New aftermarket replacement part - not remanufactured, not used.