HomeEmission Control > SensorsNTK 24649 Oxygen Sensor - Downstream Left or Downstream Right
Part #: 24649

NTK 24649 Oxygen Sensor - Downstream Left or Downstream Right

Direct Fit Oxygen Sensor, Downstream Left
20 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Direct Fit Oxygen Sensor, Downstream Left
Fitment: Lexus, LS430 and SC430
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 24649

The NTK Direct Fit Oxygen Sensor 24649 is engineered specifically for Lexus LS430 and SC430 models. This heated oxygen sensor features a threaded mounting type and a 30-inch wiring harness, designed to provide precise emissions control and optimal engine performance.

  • Heated sensor type for faster response times
  • Specific fit for Lexus LS430 and SC430
  • Threaded mounting with 18mm thread diameter
  • Four-wire configuration for reliable connectivity
  • 30-inch wiring harness length for flexible installation

Detailed Product Description

This NTK oxygen sensor is part of the Direct Fit Oxygen Sensor product line, which focuses on providing exact replacement sensors tailored to specific vehicle applications. The Direct Fit Oxygen Sensor 24649 ensures compatibility with the Lexus LS430 and SC430, eliminating the need for modifications during installation. Its heated sensor design allows the sensor to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The four-wire setup supports both the sensor signal and heater circuit, while the 18mm threaded mounting ensures a secure and leak-free fit.

Applications and Problem Solving

  • Restores accurate air-fuel mixture readings for engine control
  • Helps resolve check engine light issues related to oxygen sensors
  • Improves fuel economy by providing precise emissions data
  • Reduces harmful exhaust emissions for compliance with regulations
  • Prevents rough idling and engine performance problems caused by faulty sensors

Installation Notes and Tips

When installing the NTK 24649 oxygen sensor, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the wiring harness length of 30 inches is sufficient for your vehicle’s routing. Thread the sensor into the exhaust manifold or pipe by hand initially to avoid cross-threading, then tighten to manufacturer torque specifications. Confirm electrical connections are secure to maintain sensor functionality.

Quality Assurance and Warranty

NTK oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. The Direct Fit Oxygen Sensor line is designed to provide reliable operation under normal driving conditions. While specific warranty details for part number 24649 may vary, NTK typically offers coverage against defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.

BrandNTK
Part Number24649
PositionDirect Fit Oxygen Sensor, Downstream Left
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter18.000
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length30.0000

This part fits 20 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006LexusLS4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2006LexusLS4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2005LexusLS4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2005LexusLS4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2005LexusSC4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2005LexusSC4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2004LexusLS4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2004LexusLS4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2004LexusSC4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2004LexusSC4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2003LexusLS4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2003LexusLS4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2003LexusSC4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2003LexusSC4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2002LexusLS4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2002LexusLS4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2002LexusSC4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2002LexusSC4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2001LexusLS4304.3LV8Downstream RightOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2001LexusLS4304.3LV8Downstream LeftDownstream oxygen sensor with original equipment equivalent design; 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:

13911151271527215568213-3108213-4292234-4167234-4305234-450675-242775-252775-305175-3680894652421089465501408946550160ES20372OS1768OS2100SG1014SG1267

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