This genuine 2004 Ford Mustang Air & Fuel Delivery harness is the perfect solution for restoring your classic pony car's performance and reliability. Designed specifically for the '04 model year, this OEM-quality wiring harness ensures proper electrical connections between your fuel injection system and engine management components, eliminating voltage drops and connection issues that can cause rough idling, poor acceleration, or check engine lights. Whether you're dealing with cracked insulation from heat exposure, corroded connectors, or simply want to upgrade during an engine rebuild, this harness delivers the factory-spec reliability your Mustang deserves. With precise fitment and durable construction built to withstand under-hood temperatures and vibrations, you'll restore smooth fuel delivery and optimal engine performance while maintaining the authenticity that keeps your 2004 Mustang running strong for years to come.