HomeEmission Control > SensorsDenso 234-4245 Oxygen Sensor - Downstream
Part #: 234-4245

Denso 234-4245 Oxygen Sensor - Downstream

OE Style, Downstream
13 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
OE Style, Downstream
Fitment: Chevrolet, Saturn, and Pontiac, Cobalt, HHR, Sky, and Solstice
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Overview of the Denso OE Style Oxygen Sensor 234-4245

The Denso OE Style Oxygen Sensor 234-4245 is designed specifically for select Chevrolet, Pontiac, and Saturn models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance for vehicles like the Chevrolet Cobalt, Pontiac G5, Saturn Sky, and Chevrolet HHR.

  • Heated sensor type for faster response times
  • Specific fit for Chevrolet, Pontiac, and Saturn models
  • Threaded mounting type with 0.708-inch thread diameter
  • Four-wire design with female connector
  • Wiring harness length of 25.87 inches for proper installation

Detailed Features and Specifications

The Denso 234-4245 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring reliable operation. The sensor is designed with a female connector and a threaded mounting type with a 0.708-inch thread diameter, providing a secure and precise fit. The wiring harness length of 25.87 inches offers sufficient reach for installation in the engine bay without excess slack.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor is engineered to match the fit, form, and function of the factory-installed sensor, making it a suitable replacement for maintaining vehicle emissions compliance and engine performance. The OE Style line emphasizes compatibility and reliability for specific vehicle applications.

Compatible Vehicles and Common Applications

  • Chevrolet Cobalt oxygen sensor replacement
  • Pontiac G5 emissions sensor upgrade
  • Saturn Sky oxygen sensor repair
  • Chevrolet HHR sensor replacement for emissions control
  • Addressing engine performance and fuel efficiency issues

Installation Notes and Tips

When installing the Denso 234-4245 oxygen sensor, ensure the engine is cool to avoid burns. Use appropriate tools to avoid damaging the sensor or threads. Verify the connector gender matches the vehicle harness for a secure connection. Proper torque should be applied to the threaded mounting to prevent leaks or sensor damage. It is recommended to inspect the wiring harness for any damage before installation.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The OE Style 234-4245 sensor is designed to provide consistent emissions readings and long service life. Warranty coverage details should be confirmed with the parts provider or manufacturer documentation.

BrandDenso
Part Number234-4245
PositionOE Style, Downstream
Connector GenderFemale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length25.87

This part fits 13 vehicles. Search below:

YearMakeModelPositionNotes
2010ChevroletCobaltDownstreamOE Style
2010ChevroletHHRDownstreamOE Style
2010SaturnSkyDownstreamOE Style
2009ChevroletCobaltDownstreamOE Style
2009ChevroletHHRDownstreamOE Style
2009PontiacSolsticeDownstreamOE Style
2009SaturnSkyDownstreamOE Style
2008ChevroletCobaltDownstreamOE Style
2008ChevroletHHRDownstreamOE Style
2008PontiacSolsticeDownstream2nd Design; w/ 26" Downstream Sensor; OE Style
2008SaturnSkyDownstream2nd Design; w/ 37" Downstream Sensor; OE Style
2007PontiacSolsticeDownstream2nd Design; w/ 26" Downstream Sensor; OE Style
2007SaturnSkyDownstream2nd Design; w/ 37" Downstream Sensor; OE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

213-4243213-4254

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.