Set of 2 Intake Air Temperature (IAT) Sensors — Part Number 13621739510 Overview A pair of intake air temperature sensors (IAT) supplied as two identical units with part number 13621739510. Each sensor measures the temperature of incoming air and provides that information to the engine control unit (ECU) to help optimize fuel delivery, ignition timing, and engine performance. Key benefits Accurate airtemperature input improves combustion control and helps maintain proper air/fuel mixture. Twopiece set provides a direct replacement plus a spare or allows simultaneous replacement of both sensors for consistent system performance. Quick swap reduces diagnostic time and downtime when the IAT sensor triggers drivability issues or a checkengine code. Helps reduce rough idle, poor acceleration, and fuel economy loss caused by incorrect intakeair readings. What it does (functionality) Measures intakeair temperature and sends a voltage/resistance signal to the ECU. Enables the vehicle's engine management system to adjust fuel and timing based on incoming air conditions. Supports reliable coldstart behavior and steady running as ambient and intake temperatures change. Key attributes Part number: 13621739510 (matches applications that require this specific replacement part). Quantity: 2 pieces per package. Form factor: compact sensor designed for installation in the intake tract or sensor port specified by the vehicle manufacturer. Durability: engineered for underhood operating conditions to resist heat and vibration. Interface: designed to connect with the vehicle's OEMstyle electrical connector and wiring harness where this part number is specified. Compatibility Intended as a replacement for vehicles and systems that list part number 13621739510. Confirm fitment by checking your vehicle's parts catalog or existing sensor part number before . Easy installation Typically a direct replacement — remove the old sensor and install the unit using basic hand tools. Simple electrical connector mating and straightforward mechanical mounting reduce installation time. Follow vehicle manufacturer instructions and safety precautions. Use cases / applications a failed IAT sensor that is causing a checkengine light, poor idle, or reduced fuel economy. Install both sensors during intake or intakemanifold service to ensure matched performance and reduce future troubleshooting. Keep a spare sensor on hand for fleet maintenance or longdistance travel to quickly resolve intaketemperature related drivability issues. Package contents Two (2) intake air temperature sensors, part number 13621739510. Notes Verify the part number against your vehicle's service information or the original sensor before installation. If symptoms persist after replacement, further diagnostic testing of wiring, connectors, and ECU inputs may be required.