Denso 234-4243 Oxygen Sensor - Downstream or Downstream Right

Reliable Oxygen Sensor for Chevrolet, GMC, Hummer, and Saab Vehicles

The Denso OE Style Oxygen Sensor 234-4243 is designed to provide precise emissions control for specific Chevrolet, GMC, Hummer, and Saab models. This heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and reduce harmful emissions.

• Heated sensor type for faster response times
• Specific fit for Chevrolet, GMC, Hummer, and Saab models
• 14.84-inch wiring harness length for proper installation
• Four-wire configuration with female connector
• Threaded mounting type with 0.708-inch thread diameter

About the Denso OE Style Product Line

The Denso OE Style line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed parts. The 234-4243 oxygen sensor from this line offers reliable performance and fitment, ensuring compatibility with the targeted vehicle models without modification.

Product Details and Specifications

This oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor accuracy and reducing emissions during cold starts. The 14.84-inch wiring harness length and four-wire setup with a female connector ensure proper electrical connections and ease of installation. The sensor mounts securely with a threaded design and a 0.708-inch thread diameter, matching factory mounting points on compatible vehicles.

Compatible Vehicles and Applications

• Chevrolet Silverado 1500
• Chevrolet Colorado
• Chevrolet Trailblazer
• GMC Canyon
• GMC Envoy
• GMC Savana 1500, 2500, 3500
• Hummer H3, H3T
• Saab 9-7x
• Chevrolet Express 1500, 2500, 3500

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine hesitation or rough idling
• Reduced engine performance and drivability issues

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Use the correct tools to remove the old sensor and install the Denso 234-4243 oxygen sensor, threading it securely without over-tightening. Verify the wiring harness length and connector type match the vehicle’s factory setup for a proper fit.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Denso parts typically come with a limited warranty covering defects in materials and workmanship to provide confidence in product reliability.