LS Engine Oil Cooler Bypass Cover Block Off Plate Kit Compatible with Gen III IV LS Engine, CNC Machined 6061-T6 Aluminum, Black Anodized, Replace GM 12577903, Includes Gaskets and Hardware

Features: Fits most GM Gen III and IV LS-series small block oil pans with oil cooler ports located above the oil filter.Upgraded replacement for (OE GM part # 12577903) Specifications: Adapter Material: 6061-T6 Aluminum According to the original factory specifications,perfect match for the original car. Aftermarket product with premium quality. Stable performance, high reliability,suitable for replacing your broken one.

• High Compatibility: Fits most GM Gen III and IV LS-series small block oil pans with oil cooler ports located above the oil filter. Upgraded replacement for OE GM part number 12577903
• Premium Construction: CNC-machined from billet 6061-T6 aluminum with black anodized finish. Features a large ported internal cavity with smooth flow characteristics for improved performance over factory diecast bypass covers
• Complete Kit Included: Package contains 2 bypass covers, 4 zinc-plated steel flanged hex head mounting screws, 4 plugs, and 2 upgraded gaskets made from high-temp FKM rubber bonded to aluminum for reliable, leak-free sealing
• Easy Installation: All necessary hardware and accessories included for straightforward installation. Simply place the block off plate and gasket in the corresponding position on the oil pan and tighten the screws