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NTK 24351 Air / Fuel Ratio Sensor - Upstream Left
| Brand | NTK 24351 |
|---|---|
| Position | Upstream Left |
| Wiring Harness Length | 39.3 |
| Sensor Type | Heated |
| Thread Length | 0.38 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Thread Diameter | 18.000 |
| Mounting Bracket Included | No |
| Product line | Direct Fit 5-Wire A/F Sensor |
| Fits | Volkswagen · 1 vehicle |
Direct-fit design. Built for specific application coverage and OE-style replacement.
Heated sensor. Supports faster operating response for stable exhaust monitoring.
OE-focused engineering. NTK applies original equipment sensor manufacturing expertise.
Cross-references DENSO Auto Parts 234-5115, Remy 17005 and 07Z906262A for the same application. See all 5.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Overview
NTK 24351 is a direct-fit air/fuel ratio sensor for specific Volkswagen applications. It is a heated, 5-wire sensor built for precise exhaust feedback and OE-style fitment.
Fits 2004 Volkswagen Touareg, upstream left. Part number 24351 is also referenced for the same application under cross numbers used by other brands.
Key Features
- Direct-fit design for specific application coverage
- Heated sensor construction for faster operating response
- 5-wire configuration for accurate signal delivery
- 18 mm thread diameter with 0.38 thread length
- 39.3 harness length for proper routing
- NTK OE-focused sensor engineering and manufacturing
Detailed Description
NTK 24351 is an air/fuel ratio sensor engineered for the 2004 Volkswagen Touareg, upstream left. As a direct-fit, specific-application sensor, it matches the OE equivalent design called out for this vehicle and uses a heated 5-wire layout to support stable exhaust monitoring. The 18 mm thread diameter and 39.3 harness length help ensure the sensor installs in the intended location without guesswork.
NTK is part of the NGK family and is known for oxygen sensor manufacturing with tight control over ceramic materials and production processes. That background supports consistent fit, form, and function across NTK sensor applications, including this NTK 24351 replacement.
This part cross-references DENSO Auto Parts (e.g., 234-5115) for the same application.
What It Helps Address
- Faulty air/fuel ratio sensor readings
- Check engine light concerns related to sensor performance
- Rough idle or drivability issues tied to exhaust feedback
- Incorrect fuel control caused by aging sensor response
Installation Notes and Tips
Verify the upstream left position and OE-equivalent design before installation. Confirm connector routing, thread size, and harness length against the original sensor to avoid fitment issues. Use the vehicle’s service procedure for removal and installation, and inspect the exhaust bung threads before threading in the new sensor.
Quality Assurance
NTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand also emphasizes OE application technology and original equipment sensor manufacturing expertise.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Volkswagen | Touareg | 4.9L | V10 | DIESEL | Upstream Left | B2S1; Equipped w/ 2 Sensors; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| No rows match your filter. | |||||||