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NTK 23021 Oxygen Sensor - Upstream
| Brand | NTK 23021 |
|---|---|
| Position | Upstream |
| Wiring Harness Length | 19.7500 |
| Sensor Type | Non heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 2 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | American Motors and Jeep · 11 vehicles |
Direct-fit design. Built for specific applications with OE-style fit, form, and function.
Non-heated sensor. Uses a 2-wire layout for the listed emission control application.
NTK 23021. Catalog-matched part number for streamlined application lookup.
Cross-references Delphi ES10003, DENSO Auto Parts 234-2007 and Remy 12007 for the same application. See all 10.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct-Fit Oxygen Sensor for 1980 Applications
The NTK 23021 is a direct-fit oxygen sensor built for specific 1980 upstream applications. It uses a threaded mounting design and a non-heated, 2-wire configuration for a straightforward replacement on supported vehicles.
Key Features
- Direct-fit oxygen sensor for specific applications
- Non-heated sensor design
- 2-wire configuration with 19.75-inch harness length
- Threaded mounting type with 18 mm thread diameter
- NTK 23021 part number for catalog matching
Detailed Description
NTK 23021 is part of the Direct Fit Oxygen Sensor line, engineered for specific upstream fitment. NTK is known for oxygen sensor manufacturing across import and domestic coverage, and this sensor reflects that focus with OE-style fit, form, and function. For buyers searching for an oxygen sensor for American Motors AMX, Concord, Eagle, Pacer, or Spirit, as well as Jeep Cherokee, CJ5, CJ7, DJ5, J10, and Wagoneer, this part number 23021 matches the listed 1980 upstream applications.
The sensor uses a threaded mount and a non-heated design, making it a direct replacement for the specified emission control application. This NTK oxygen sensor is also cross-referenced to Delphi ES10003 and DENSO Auto Parts 234-2007 for the same application.
What It Is Used For
- Replacing a worn or failed upstream oxygen sensor
- Restoring proper air-fuel feedback to the engine control system
- Addressing sensor-related drivability or emissions concerns
- Replacing a damaged threaded sensor with the correct direct-fit design
Installation Notes and Tips
Verify the upstream position and confirm the 18 mm thread diameter before installation. Match the harness length and wire count to the original sensor connector layout. Use the part number 23021 to confirm catalog fitment for the listed 1980 American Motors and Jeep applications.
Quality Assurance
NTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand also draws on original equipment sensor manufacturing experience and ceramic technology used from raw material through finished product.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1980 | American Motors | AMX | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | American Motors | Concord | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | American Motors | Eagle | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | American Motors | Pacer | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | American Motors | Spirit | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | Jeep | Cherokee | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | Jeep | CJ5 | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | Jeep | CJ7 | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | Jeep | DJ5 | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | Jeep | J10 | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1980 | Jeep | Wagoneer | 4.2L | L6 | Upstream | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
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