NTK 24566 Oxygen Sensor - Downstream Left

Direct Fit Oxygen Sensor for Lexus Applications

NTK Oxygen Sensor 24566 is a direct fit, heated oxygen sensor built for specific downstream left applications. It is engineered to match OE-style fit, form, and function for select Lexus models, including Lexus GS350, IS250, IS350, RC300, and RC350.

As part of the NTK Direct Fit Oxygen Sensor line, this sensor reflects NTK’s focus on streamlined coverage and OE application support for import and domestic vehicles. The design uses a threaded mounting style and a 4-wire configuration for a precise replacement on the intended bank and sensor position.

Key Features

• Direct fit oxygen sensor for specific Lexus downstream left applications
• Heated sensor design for faster operating readiness
• 4-wire configuration
• Threaded mounting type with 18 mm thread diameter
• Wiring harness length: 35.75 in.
• OE-style fit, form, and function for targeted replacement

Detailed Product Overview

NTK part number 24566 is designed for downstream left placement, including B2S2 applications listed for Lexus GS350, IS250, IS350, RC300, and RC350. If you are searching for a direct fit oxygen sensor for Lexus GS350 downstream left or an NTK 24566 replacement for Lexus IS350 B2S2, this sensor is built to match the original sensor location and connection style. NTK manufactures oxygen sensors with ceramic technology control from raw material through finished product, and each unit is tested during production to meet or exceed OE specifications.

This part cross-references Bosch 15126 for the same application.

Common Problems This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn downstream sensor
• Slow sensor response after extended service life
• Fault codes tied to B2S2 or downstream left sensor location
• Emissions test failures caused by a degraded oxygen sensor

Installation Notes and Tips

Confirm the vehicle’s exact year, model, and downstream left sensor position before ordering. This NTK oxygen sensor uses a threaded mount and a specific-fit design, so it should be matched to the listed Lexus applications only. Inspect the connector routing and harness length against the original sensor before installation, and verify the sensor location as B2S2 where applicable.

Quality Assurance

NTK is a major original equipment oxygen sensor supplier and manufacturer, with manufacturing controls and testing designed to support OE-level reliability. The NTK Direct Fit Oxygen Sensor line is developed for precise application coverage and consistent replacement performance on the listed Lexus vehicles.