?Manufacturer Part Number?ES72798, GS33412, ES71328, 3L3Z 6065-AA, 3L3Z6065AA, 9R3Z-6065-A, 9R3Z6065A, 5R3Z 6065-AA, F1AZ 6065-A, F3AZ 6065-A, F5AZ 6065-A, F6AZ 6065-BA ?Broad Vehicle Fitment?This cylinder head bolt kit is designed to fit various Ford, Lincoln, and Mercury models equipped with 4.6L or 5.4L V8 engines, including but not limited to Ford Crown Victoria, F-150, Mustang, E-Series, Expedition; Lincoln Town Car, Navigator; Mercury Grand Marquis. Please verify your vehicle's specific year, model, and engine details against our list before ordering. ?Precise Replacement Part?Includes 20 pieces of head bolts matching specification ES72798. These bolts are intended to serve as a replacement for worn or damaged OEM bolts during engine repair and maintenance. ?Durable Construction?Manufactured to meet performance specifications, these bolts are made from materials aiming to provide required clamping force and durability for cylinder head reinstallation. ?Support & Warranty?Backed by a 1-year limited warranty and customer service support. We recommend consulting a professional mechanic or service manual for proper installation procedures and torque specifications.