The Pioneer Automotive 839036 In-Tank Fuel Pump Resistor Push Rod is a precision-engineered component designed to ensure optimal fuel delivery in various Chevrolet, Oldsmobile, and Pontiac models from 1957 to 1997. This push rod plays a critical role in the fuel system by maintaining the correct resistance levels, thereby facilitating accurate fuel pump operation and consistent engine performance. Constructed with rugged materials, the 839036 push rod is built to withstand the demanding conditions of the automotive environment, ensuring long-term reliability and durability. Its dimensions—4.2 inches in length, 2.9 inches in width, and 2.8 inches in height—make it a direct fit for the specified vehicle applications, simplifying the replacement process and reducing downtime. By choosing the Pioneer Automotive 839036 In-Tank Fuel Pump Resistor Push Rod, fleet operators can enhance fuel system efficiency, leading to improved vehicle performance and reduced maintenance costs over time.