NTK 24554 Oxygen Sensor - Downstream, Downstream Left, Downstream Right or Upstream

Direct Fit Oxygen Sensor for Toyota and Lexus

The NTK Direct Fit Oxygen Sensor 24554 is a heated, specific-fit replacement built for select Toyota and Lexus applications. It is engineered for OE-style placement and signal performance, making it a practical choice for downstream and upstream oxygen sensor service on vehicles such as the Toyota Tundra, Toyota Land Cruiser, and Lexus LX470.

NTK is known for oxygen sensor manufacturing across import and domestic applications, and this direct-fit line is designed to streamline replacement selection while maintaining original-equipment style fit, form, and function.

Key Features

• Specific-fit oxygen sensor for direct replacement on listed applications
• Heated sensor design for faster operating temperature
• 4-wire configuration for OE-style electrical connection
• 18 mm thread diameter with flange mounting type
• 16.25 in. wiring harness length for application-specific routing
• OE-equivalent design for select Toyota and Lexus emissions systems

Detailed Description

NTK part number 24554 is a direct fit oxygen sensor designed for emissions control service on a range of Toyota and Lexus vehicles. It is listed for downstream right, downstream left, downstream, and upstream positions depending on the application, including 1993-2005 Toyota Pickup, 1994-2004 Toyota T100, 1995-2004 Toyota Tacoma, 1996-2004 Toyota 4Runner, 2000-2004 Toyota Tundra, 2001-2004 Toyota Sequoia, 1998-2004 Toyota Land Cruiser, and 1998-2004 Lexus LX470. This part number 24554 is also listed for 2005 Toyota Land Cruiser and 2005 Lexus LX470 applications through 5/05.

NTK manufactures oxygen sensors with ceramic technology and extensive production testing to help maintain OE-level fit and reliability. This sensor is intended for buyers who need a direct replacement that matches the original mounting style and wiring layout without modifying the vehicle harness.

This part cross-references Bosch 13051 and DENSO Auto Parts 234-4153 for the same application.

Common Problems This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings on upstream applications
• Slow or inaccurate downstream sensor response
• Emissions test failure caused by a worn sensor
• Connector or fitment issues from a non-specific replacement

Installation Notes and Tips

Verify the sensor position before ordering, since NTK 24554 is used in both upstream and downstream locations across different Toyota and Lexus models. Confirm the thread diameter, 4-wire layout, and flange mounting style against the original sensor before installation. For best results, inspect the harness routing and connector condition during replacement, especially on higher-mileage Toyota Tundra, Toyota Land Cruiser, and Lexus LX470 vehicles.

Quality Assurance

NTK is a major original-equipment oxygen sensor supplier, and this direct-fit line is manufactured and tested to meet or exceed OE specifications for fit and reliability. The sensor is built using NTK’s ceramic manufacturing expertise and application-focused OE technology.