Upgrade your 1973-1974 Oldsmobile Cutlass/442/F-85 with our Transmission Controlled Spark Switch Harness, designed specifically for 6-cylinder manual transmission models. This high-quality engine harness delivers reliable performance and enhances your vehicle's ignition system efficiency. Unlike generic alternatives, our harness ensures a perfect fit and superior functionality, making it an essential upgrade for any Cutlass enthusiast looking to maintain their classic ride's authenticity and performance.