Oil Cooler Bypass Cover (No Sensor Ports) For Gen III & IV LS Engine Feature: 1: According to the original factory specifications,perfect match for the original car. 2: Own different test machines to design exact accurate parameter for our products.All items were tested for performance. 3: Made by high quality material, lightweight, anti-rust, colorfast and durable. 4: Aftermarket product with premium quality. 5: Stable performance, high reliability,suitable for replacing your broken one. 6:Used to cover the factory oil cooler ports on vehicles not equipped with an oil cooler. 7:Large ported internal cavity for better flow than the OE diecast bypass cover. 8:Fits most GM Gen III and IV LS-series small block oil pans with oil cooler ports located above the oil filter. Includes aluminum bonded high-temp FKM rubber gasket for a leak-free seal and class 10.9 mounting screws. Specifics: Condition: New Material: Metal Color:show as pictures Manufacturer Part Number: 12577903 Interchange Part Number: 12577903 Other Part Number: EGM-109 Type: Bypass Cover Note： No Sensor Ports Fitment Type: Direct Replacement Spec：Improved Racing's oil cooler bypass cover is an upgraded replacement for the factory bypass cover (OE GM part # 12577903) found on vehicles not equipped with an oil cooler from the factory. Also available with two 1/8" NPT ports for oil temperature sensors, or for supplying oil to a turbocharger (See part number EGM-109). Fitment: Fits most GM Gen III and IV LS-series small block oil pans with oil cooler ports located above the oil filter. Package Include: 1 x Oil Cooler Bypass Cover