NTK 24641 Oxygen Sensor - Downstream or Downstream Front
OE Quality 60-Day Returns
NTK
 Direct Fit Oxygen Sensor

NTK 24641 Oxygen Sensor - Downstream or Downstream Front

Brand NTK 24641
Position Downstream and Downstream Front
Wiring Harness Length 14.2500
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 INFINITI and Nissan · 5 vehicles

Direct-fit design. Specific application coverage for straightforward oxygen sensor replacement.

Heated 4-wire sensor. Supports stable exhaust monitoring with threaded mounting.

OE-spec testing. Manufactured and checked to meet or exceed original equipment standards.

Cross-references BBB Industries 13675, BBB Industries 13969 and Bosch 15949 for the same application. See all 21.

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Free returns within 60 days if it doesn't fit when fitment is verified.
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Direct-Fit Heated Oxygen Sensor

The NTK 24641 is a direct-fit heated oxygen sensor built for specific applications with threaded mounting and a 4-wire design. It is engineered for accurate exhaust monitoring and OE-style fitment in select Nissan and INFINITI applications.

  • Heated oxygen sensor with specific-fit application coverage
  • 4-wire configuration for stable signal performance
  • Threaded mounting type for direct replacement installation
  • 14.25-inch wiring harness length
  • 18 mm thread diameter

Fitment and Application Details

Compatible with select Nissan Altima and INFINITI G20 applications. Fits 2004 Nissan Altima, Downstream Front; Fits 2002-2003 Nissan Altima, Downstream Front; Fits 2002 INFINITI G20, Downstream; Fits 2001 Nissan Altima, Downstream. This part cross-references Bosch 15949 and DENSO Auto Parts 234-4302 for the same application.

What It Helps Address

  • Fault codes related to oxygen sensor performance
  • Incorrect exhaust oxygen readings
  • Rough idle or drivability issues tied to sensor output
  • Emissions test failures caused by a worn sensor

Installation Notes and Quality

Use the vehicle’s original sensor location and connector routing as a guide during installation. Verify thread size, harness length, and sensor position before replacement. NTK states these oxygen sensors are extensively tested during manufacturing and built to meet or exceed OE specifications.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2004NissanAltima3.5LV6Downstream FrontB2S2; To 1/04; OE Equivalent Design; Direct Fit Oxygen Sensor
2003NissanAltima3.5LV6Downstream FrontOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2002INFINITIG202.0LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2002NissanAltima3.5LV6Downstream FrontOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2001NissanAltima2.4LL4DownstreamB1S2; From 12/00; OE Equivalent Design; Direct Fit Oxygen Sensor
Directly replaces or cross-references 21 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13675BBB Industries — 13969Bosch — 15949Delphi — ES20218DENSO Auto Parts — 234-4302DENSO Auto Parts — 234-4775Dorman - HELP — 1593975-228375-269475-2696226A04J903226A09E801226A18J100OS1700OS1707OS2124OS2142SG946SG953SG1291SG1309