NTK
Direct Fit Oxygen Sensor

NTK 23544 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Brand NTK 23544
Position Downstream Left, Downstream Right, and Downstream
Wiring Harness Length 12.0000
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Thread Diameter 18.000
Mounting Type Threaded
Product line Direct Fit Oxygen Sensor
Fits Dodge · 9 vehicles

Direct-fit design. Specific application replacement with OE-style fit, form, and function.

Heated 4-wire sensor. Built for responsive exhaust oxygen monitoring in emissions systems.

OE-tested quality. Manufactured and tested to meet or exceed OE specifications.

Cross-references BBB Industries 13937, Delphi ES20105 and DENSO Auto Parts 234-4764 for the same application. See all 11.

$90.26Free shipping
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Order total $90.26
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Free returns within 60 days if it doesn't fit when fitment is verified.

Direct-Fit Oxygen Sensor

NTK Oxygen Sensor 23544 is a direct-fit, threaded heated sensor built for specific applications with OE-style form and function. It uses a 4-wire design and a 12-inch harness for a clean replacement on supported Dodge emissions systems.

Key Features

  • Direct-fit design for specific applications
  • Heated oxygen sensor with 4-wire construction
  • Threaded mounting type with 18 mm thread diameter
  • 12-inch wiring harness length
  • NTK part number 23544

Detailed Description

NTK 23544 is part of the Direct Fit Oxygen Sensor line, created to streamline coverage while maintaining OE-style fit, form, and function. NTK draws on its ceramics and sensor manufacturing background to produce oxygen sensors that are extensively tested during production for quality and reliability. This sensor is a specific-fit replacement for select Dodge Dakota, Dodge Durango, and Dodge Ram 1500 applications, including downstream positions and emissions configurations listed in the fitment data. The part number 23544 is also referenced by several cross-brand equivalents for the same application.

Compatible With 2001-2002 Dodge Dakota, downstream left and downstream right; 2001-2002 Dodge Durango, downstream right and downstream; and 2002 Dodge Ram 1500, downstream right. Use the exact fitment listing to confirm emissions setup before ordering NTK 23544.

What It Is Used For

  • Replacing a worn or slow-responding oxygen sensor
  • Restoring accurate exhaust oxygen feedback to the engine control system
  • Addressing sensor faults that trigger emissions-related warning lights
  • Correcting drivability issues tied to improper air-fuel monitoring
  • Servicing downstream sensor positions on supported Dodge applications

Installation Notes and Tips

Confirm the vehicle year, model, position, and emissions notes before installation. This sensor uses a threaded mount and a specific harness length, so routing and connector placement should match the original configuration. Verify the application details for downstream left, downstream right, or downstream placement as listed in the fitment table.

Quality Assurance

NTK tests these oxygen sensors during manufacturing to help ensure quality and reliability that meet or exceed OE specifications.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2002DodgeDakotaManual4.7LV8Downstream LeftEquivalent OE design oxygen sensor; Direct Fit Oxygen Sensor
2002DodgeDakota—4.7LV8Downstream RightEquivalent OE design oxygen sensor; Direct Fit Oxygen Sensor
2002DodgeDurango—4.7LV8Downstream RightCalif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor
2002DodgeDurango—4.7LV8DownstreamB1S2, Federal Emissions, OE Equivalent Design; Direct Fit Oxygen Sensor
2002DodgeRam 1500—4.7LV8Downstream RightEquivalent OE design oxygen sensor; Direct Fit Oxygen Sensor
2001DodgeDakotaManual4.7LV8Downstream LeftEquivalent OE design oxygen sensor; Direct Fit Oxygen Sensor
2001DodgeDakota—4.7LV8Downstream RightEquivalent OE design oxygen sensor; Direct Fit Oxygen Sensor
2001DodgeDurango—4.7LV8Downstream RightCalif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor
2001DodgeDurango—4.7LV8DownstreamB1S2, Federal Emissions, OE Equivalent Design; Direct Fit Oxygen Sensor
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13937Delphi — ES20105DENSO Auto Parts — 234-4764Four Seasons — 13712Spectra Premium — OS526075-231275-3822213-296756028586AAOS1435SG682