ACDelco 2134253 GM Genuine Parts Heated Oxygen Sensor - Downstream

The ACDelco 2134253 Heated Oxygen Sensor is a GM Genuine Parts original equipment replacement component designed to maintain optimal engine performance and fuel efficiency. This downstream oxygen sensor serves as a critical feedback sensor in your vehicle's exhaust system, accurately measuring the proportion of oxygen in exhaust gases and transmitting this data to the engine control module (ECM).

Key Features:

• GM Genuine Parts original equipment quality - manufactured to meet rigorous General Motors standards
• Heated sensor design for faster response times and improved accuracy
• Measures oxygen levels to help the ECM adjust air/fuel ratio to the optimal 14.7:1 ratio
• Downstream position sensor for post-catalytic converter monitoring
• Designed for direct fit installation on compatible GM vehicles
• Optimizes engine performance, fuel economy, and reduces harmful emissions
• Manufactured to provide the same durability and service life as the original factory component

This oxygen sensor plays a vital role in your vehicle's emissions control system and overall engine management. When functioning properly, it helps maximize fuel efficiency while minimizing exhaust emissions. The heated design allows the sensor to reach operating temperature quickly, ensuring accurate readings under various driving conditions.

Warranty: Backed by ACDelco's 12-month/12,000-mile limited warranty against defects in materials and workmanship.