ACDelco 2131529 Heated Oxygen Sensor 4-Wire Square Connector

The ACDelco 2131529 is a GM Original Equipment heated oxygen sensor designed as a direct replacement for your vehicle's original component. This sensor is a critical feedback device on your exhaust system that measures the proportion of oxygen in exhaust gases, allowing the engine control module to adjust the air/fuel ratio to the optimal value of 14.7:1 for maximum engine performance, emissions control, and fuel economy.

Key Features:

• Heated 4-wire oxygen sensor with square connector design
• 13.38-inch overall length for proper fitment
• Position 2 mounting configuration
• Meets GM Original Equipment specifications for precise fit and function
• Manufactured to detect oxygen content and aid in emissions performance
• Validated sensor components for engine-specific applications

This GM-recommended replacement sensor has been engineered to provide the same performance, durability, and service life you expect from General Motors. Proper wire length is critical to prevent exposure to extreme heat and abrasions that can lead to premature failure. ACDelco oxygen sensors help optimize fuel efficiency while maintaining proper emissions control for your GM vehicle.