HomeEmission Control > SensorsNTK 23142 Oxygen Sensor - Downstream or Downstream Right
Part #: 23142

NTK 23142 Oxygen Sensor - Downstream or Downstream Right

Direct Fit Oxygen Sensor, Downstream Right
⚙️ 8 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$42.68Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct Fit Oxygen Sensor, Downstream Right
🚗Fitment: Jeep, Liberty, TJ, and Wrangler
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of NTK Direct Fit Oxygen Sensor 23142

The NTK Direct Fit Oxygen Sensor 23142 is designed specifically for Jeep Liberty, TJ, and Wrangler models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

  • Heated oxygen sensor for faster response times
  • Specific fit for Jeep Liberty, TJ, and Wrangler
  • Threaded mounting type with 18mm thread diameter
  • Four-wire design for reliable electrical connections
  • 13.5-inch wiring harness length for easy installation

About the NTK Direct Fit Oxygen Sensor Line

The Direct Fit Oxygen Sensor line by NTK is engineered to provide exact replacement sensors that match OEM specifications. These sensors are designed to fit specific vehicle makes and models, ensuring proper fitment and function without modification. The 23142 part number belongs to this line, offering a direct replacement solution for Jeep vehicles requiring a heated oxygen sensor with a threaded mounting style.

Detailed Product Description

This NTK oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response and reducing emissions during cold starts. The sensor’s four-wire configuration supports both the heating element and signal transmission, ensuring accurate data delivery to the engine control unit. With a 13.5-inch wiring harness, the sensor provides sufficient length for straightforward installation in the engine bay. The 18mm threaded mounting type secures the sensor firmly in place, maintaining a proper seal and sensor positioning.

Common Applications and Issues Addressed

  • Replacement for faulty or failing oxygen sensors in Jeep Liberty, TJ, and Wrangler
  • Helps resolve engine performance issues related to incorrect air-fuel mixture
  • Reduces emissions by providing accurate oxygen level readings
  • Prevents check engine light triggers caused by sensor malfunctions
  • Improves fuel efficiency by enabling precise engine adjustments

Installation Notes and Tips

  • Ensure vehicle compatibility with Jeep Liberty, TJ, or Wrangler models before installation
  • Use proper tools to remove the old sensor and install the new 18mm threaded sensor
  • Handle the sensor carefully to avoid damaging the wiring harness or sensor tip
  • Verify electrical connections of the four wires for secure fitment
  • Allow the engine to cool before sensor replacement to prevent burns

Quality Assurance and Warranty

NTK oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit Oxygen Sensor 23142 undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, NTK typically offers coverage against defects in materials and workmanship to support long-term use.

BrandNTK
Part Number23142
PositionDirect Fit Oxygen Sensor, Downstream Right
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter18.000
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length13.5000

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003JeepLiberty3.7LV6Downstream RightReplacement oxygen sensor for B2S2 location.; Direct Fit Oxygen Sensor
2003JeepTJ4.0LL6DownstreamCyls. 1-3; B1S2; OE MFR: NTK; Direct Fit Oxygen Sensor
2003JeepWrangler4.0LL6DownstreamCyls. 1-3; B1S2; OE MFR: NTK; Direct Fit Oxygen Sensor
2002JeepLiberty3.7LV6Downstream RightReplacement oxygen sensor for B2S2 location.; Direct Fit Oxygen Sensor
2002JeepTJ4.0LL6DownstreamCyls. 1-3; B1S2; OE MFR: NTK; Direct Fit Oxygen Sensor
2002JeepWrangler4.0LL6DownstreamCyls. 1-3; B1S2; OE MFR: NTK; Direct Fit Oxygen Sensor
2001JeepTJ4.0LL6DownstreamCyls. 1-3; B1S2; OE MFR: NTK; Direct Fit Oxygen Sensor
2001JeepWrangler4.0LL6DownstreamCyls. 1-3; B1S2; OE MFR: NTK; Direct Fit Oxygen Sensor

* 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:

1367213718213-2988234-4029234-422956041847AA56041953AA75-228175-2318ES20089OS1471OS1482OS5246SG718SG729

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