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NTK 24301 Air / Fuel Ratio Sensor - Upstream
| Brand | NTK 24301 |
|---|---|
| Position | Upstream |
| Mounting Bracket Included | No |
| Sensor Type | Heated |
| Thread Diameter | 18.000 |
| Thread Length | 0.38 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Wiring Harness Length | 8.3 |
| Product line | Direct Fit 5-Wire A/F Sensor |
| Fits | Honda · 2 vehicles |
Direct fit replacement. Specific-fit sensor for straightforward installation.
Heated sensor. Helps the system reach operating temperature quickly.
OE-spec tested. Manufactured to meet or exceed original equipment standards.
Cross-references Carlson 15393, DENSO Auto Parts 234-5050 and Four Seasons 15906 for the same application. See all 7.
NTK Direct Fit Air/Fuel Ratio Sensor
NTK 24301 is a direct fit heated air/fuel ratio sensor built for precise upstream monitoring on select Honda applications. It is engineered for the 2000-2001 Honda Insight, Bank 1 Sensor 1, with OE-style fit, form, and function.
Key Features
- Direct fit replacement for specific Honda Insight upstream applications
- Heated sensor design for faster operating temperature
- 5-wire configuration for air/fuel ratio signal control
- 18.000 mm thread diameter with 0.38 thread length
- 8.3 wiring harness length for application-specific routing
- Specific fit sensor with no mounting bracket included
Product Details
NTK 24301 is part of the Direct Fit 5-Wire A/F Sensor line, a product line focused on application-specific replacement sensors for import and domestic vehicles. NTK uses ceramic sensor technology and OE-level manufacturing controls to produce sensors with consistent fit and signal performance. This part cross-references DENSO Auto Parts 234-5050 for the same application.
Fits 2000-2001 Honda Insight, upstream. Fits 2000-2001 Honda Insight, Bank 1 Sensor 1 oxygen sensor location. If you are searching for an NTK 24301 oxygen sensor for Honda Insight upstream replacement, this part matches the listed vehicle application.
Common Issues This Sensor Can Address
- Check engine light related to upstream air/fuel ratio sensor faults
- Incorrect fuel trim readings from a failing sensor
- Rough idle or drivability concerns tied to sensor signal degradation
- Slow sensor response after warm-up
- Emissions test failure caused by a worn oxygen sensor
Installation Notes
Verify the connector, wire count, thread diameter, and upstream Bank 1 Sensor 1 location before installation. Use the vehicle-specific harness routing and confirm the sensor seats correctly in the exhaust bung. For best results, inspect the connector and wiring for heat damage or corrosion before replacing the sensor.
Quality Assurance
NTK manufactures oxygen and air/fuel ratio sensors with extensive testing during production to help meet or exceed OE specifications. As part of the NGK family of products and a major OE sensor supplier, NTK focuses on application coverage, consistent signal output, and reliable replacement performance.
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2001 | Honda | Insight | Manual | 1.0L | L3 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor |
| 2000 | Honda | Insight | — | 1.0L | L3 | Upstream | Bank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor |
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