HomeEmission Control > SensorsDenso 234-4546 Oxygen Sensor - Downstream Right
Part #: 234-4546

Denso 234-4546 Oxygen Sensor - Downstream Right

OE Style, Downstream Right
⚙️ 2 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Downstream Right
🚗Fitment: Ram, 2500 and 3500
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Overview of Denso OE Style Oxygen Sensor 234-4546

The Denso OE Style Oxygen Sensor 234-4546 is designed specifically for Ram 2500 and 3500 models. This heated oxygen sensor features a 13.98-inch wiring harness and a threaded mounting type, ensuring precise fitment and reliable performance in emission control systems.

  • Heated sensor type for faster response times
  • Specific fitment for Ram 2500 and 3500 models
  • 13.98-inch wiring harness length for optimal installation
  • Threaded mounting with 0.708-inch thread diameter
  • Four-wire configuration with female connector

Detailed Product Description

The Denso OE Style 234-4546 oxygen sensor is engineered to meet the exact specifications of your Ram 2500 or 3500. Its heated sensor design allows for quicker activation and more accurate readings of exhaust gases, which is critical for maintaining proper air-fuel mixture and reducing emissions. The 13.98-inch wiring harness length provides sufficient reach for straightforward installation without excess slack. Featuring a female connector and four wires, this sensor integrates seamlessly with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter ensures a secure and leak-free fit in the exhaust system.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that closely replicate original equipment specifications. This oxygen sensor is part of that line, offering a direct replacement solution that matches the fit, form, and function of the factory-installed sensor. Using OE Style parts helps maintain vehicle performance and emission standards without modification.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper engine management
  • Helps resolve rough idling caused by faulty sensor readings
  • Reduces increased emissions due to sensor failure
  • Prevents poor fuel economy linked to incorrect air-fuel ratios
  • Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

  • Ensure vehicle compatibility with Ram 2500 or 3500 models before installation
  • Use proper tools to avoid damaging the threaded sensor mount
  • Check wiring harness length and connector type for compatibility
  • Follow torque specifications to secure the sensor without over-tightening
  • Inspect surrounding exhaust components for leaks or damage during replacement

Quality Assurance and Warranty

Denso manufactures the OE Style 234-4546 oxygen sensor to meet stringent quality standards, ensuring reliable operation within emission control systems. While specific warranty details may vary, Denso parts typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.

BrandDenso
Part Number234-4546
PositionOE Style, Downstream Right
Connector GenderFemale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length13.98

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2011Ram2500Downstream RightOE Style
2011Ram3500Downstream RightOE 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:

15511

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