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NTK 22504 Oxygen Sensor - Downstream
| Brand | NTK 22504 |
|---|---|
| Position | Downstream |
| Wiring Harness Length | 19.7500 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | Mazda · 4 vehicles |
Direct-fit design. Specific-fit replacement for streamlined installation and OE-style application coverage.
Heated sensor. Built for faster operating response and stable exhaust feedback.
OE-tested quality. Manufactured and tested to meet or exceed OE specifications.
Cross-references BBB Industries 13553, BBB Industries 13857 and Delphi ES20066 for the same application. See all 16.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct-Fit Oxygen Sensor
NTK 22504 is a specific-fit heated oxygen sensor built for direct replacement applications. It uses a threaded mounting design and a 4-wire configuration with a 19.7500 wiring harness length for a precise installation profile.
Key Features
- Heated oxygen sensor for faster operating response.
- Specific-fit design for direct replacement use.
- Threaded mounting type for secure installation.
- 4-wire construction for signal and heater circuit operation.
- 19.7500 wiring harness length.
Detailed Description
NTK 22504 is a direct-fit oxygen sensor engineered for emission control service where accurate exhaust feedback is required. It is listed for 1996-1997 Mazda Miata downstream applications and 1999-2000 Mazda Miata downstream applications, including Federal Emissions coverage and OE equivalent design references. The threaded sensor body and heated design support consistent installation and operation in the specified Mazda Miata fitments. Part number 22504 is also cross-referenced to Delphi ES20066 and DENSO Auto Parts 234-4145 for the same application.
What It Is Used For
- Replacing a worn or slow-responding oxygen sensor.
- Addressing oxygen sensor fault codes.
- Restoring exhaust mixture feedback to the engine control system.
- Correcting emissions-related drivability concerns tied to sensor output.
Installation Notes and Tips
Verify the downstream position and match the threaded mounting style, wire count, and harness length before installation. Confirm the vehicle year and emissions configuration against the listed Mazda Miata fitments. Use the OE-equivalent direct-fit layout to simplify replacement on the specified applications.
Quality Assurance
NTK is part of the NGK family of products and is a major original equipment oxygen sensor supplier. NTK states that these sensors are extensively tested during manufacturing to meet or exceed OE specifications for fit, form, and function.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2000 | Mazda | Miata | 1.8L | L4 | Downstream | B1S2, Federal Emissions, OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1999 | Mazda | Miata | 1.8L | L4 | Downstream | B1S2, Federal Emissions, OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1997 | Mazda | Miata | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1996 | Mazda | Miata | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
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