NTK Oxygen Sensor Post-Catalytic Converter LEFT OZA554-N10 - Nissan 350Z HR / 370Z
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$198.00
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OZA554-N10 · NTK Post-Cat Oxygen Sensor (Left) OEM Manufacturer
NTK Oxygen Sensor – Post Catalytic Converter LEFT – Nissan 350Z HR / 370Z
OZA554-N10
Post-catalytic oxygen sensors monitor exhaust gas after the catalytic converter to ensure emissions system efficiency. The NTK OZA554-N10 is a direct replacement sensor designed to provide accurate feedback to the ECU for proper emissions control and system monitoring.
When diagnosing check engine lights, catalyst efficiency codes or emissions-related faults, post-catalytic oxygen sensors are commonly inspected components within the system.
Post-cat sensors primarily monitor catalytic converter performance rather than controlling fuel mixtures, making them critical for emissions system validation and fault detection.
Common symptoms associated with faulty post-cat oxygen sensors:
• Check engine light (P0420 / P0430)
• Emissions-related fault codes
• Poor fuel economy (in some cases)
• Failed emissions testing
Product specifications
| Specification | Detail |
|---|---|
| Part number | OZA554-N10 |
| Brand | NTK |
| Type | 4-wire oxygen sensor |
| Position | Post catalytic converter – Left |
| Cable length | Approx. 371mm |
| Sold as | Each |
Why NTK
- OEM manufacturer for many Japanese vehicles
- Direct fit with correct connector and wiring length
- Accurate signal output for ECU monitoring
- Reliable long-term performance
Fitment
Nissan 350Z Z33 HR · 3.5L VQ35HR
Nissan 370Z Z34 · 3.7L VQ37VHR
Left-hand side (bank dependent). Confirm before ordering.
Recommendation: Post-catalytic oxygen sensors are typically replaced in pairs to maintain consistent readings across both banks.
