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NTK 24658 Air / Fuel Ratio Sensor - Upstream Front or Upstream Rear
| Brand | NTK 24658 |
|---|---|
| Position | Upstream Rear and Upstream Front |
| Wiring Harness Length | 17.8 |
| Sensor Type | Heated |
| Thread Length | 0.38 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Bracket Included | No |
| Product line | Direct Fit 4-Wire A/F Sensor |
| Fits | Lexus and Toyota · 10 vehicles |
Direct-fit design. Specific replacement for supported emission control applications.
Heated 4-wire sensor. Built for stable signal response and OE-style operation.
OE-focused testing. Manufactured to meet or exceed OE specifications.
Cross-references BBB Industries 13526, BBB Industries 13540 and BBB Industries 13995 for the same application. See all 21.
Direct Fit Air/Fuel Ratio Sensor
NTK 24658 is a direct-fit heated air/fuel ratio sensor built for specific import applications. It uses a 4-wire design with a 17.8-inch harness and 18 mm thread diameter for a precise replacement on supported vehicles.
- Direct-fit replacement for specific emission control applications
- Heated 4-wire sensor design for stable signal response
- 17.8-inch wiring harness length
- 18 mm thread diameter with 0.38 thread length
- Specific-fit design for cleaner installation and correct sensor placement
Fitment and Application Details
Compatible with Toyota Avalon and Toyota Sienna upstream front applications, plus Lexus ES300 upstream rear applications. Fits 2000-2004 Toyota Avalon, upstream front; fits 2001-2003 Toyota Sienna, upstream front; fits 2000-2001 Lexus ES300, upstream rear. This part cross-references DENSO Auto Parts 234-9021 and Delphi ES10931 for the same application.
NTK 24658 is part of the Direct Fit 4-Wire A/F Sensor line, which focuses on application-specific oxygen and air/fuel ratio coverage. That product line is built to streamline replacement selection while maintaining OE-style fit, form, and function.
Common Replacement Issues
- Fault codes related to air/fuel ratio sensor performance
- Rough idle or inconsistent fuel control from a worn sensor
- Slow sensor response affecting emissions system operation
- Incorrect upstream sensor readings on supported Toyota and Lexus applications
Installation Notes and Quality
Use the confirmed fitment and sensor position before installation to verify the correct application. The sensor is a specific-fit unit, so matching the thread size, harness length, and position is important for proper installation.
NTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand also draws on OE-supplier experience and ceramic technology used in sensor production.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Toyota | Avalon | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Toyota | Avalon | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Toyota | Sienna | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Toyota | Avalon | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Toyota | Sienna | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2001 | Lexus | ES300 | 3.0L | V6 | Upstream Rear | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2001 | Toyota | Avalon | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2001 | Toyota | Sienna | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2000 | Lexus | ES300 | 3.0L | V6 | Upstream Rear | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2000 | Toyota | Avalon | 3.0L | V6 | Upstream Front | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
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