98-01 Nissan Altima / 94-98 240SX Front Sensor
Front O2 Sensor — Nissan Altima / 240SX
Direct replacement oxygen sensor for precise fuel mixture monitoring. OEM-spec construction ensures factory performance and engine efficiency. Designed to restore accurate readings on aged or failing sensors.
Key Features
- Factory OEM Spec - Matches original equipment calibration for reliable air-fuel ratio feedback
- Direct Bolt-In Design - No modification or adapter required for seamless installation
- Heat Resistant Construction - Built to handle exhaust manifold temperatures without premature failure
Specs
- Front-mounted oxygen sensor assembly
- Direct replacement configuration
- New condition
What's Included
- Oxygen sensor
Frequently Asked Questions
Will this sensor work with my stock exhaust manifold?
Yes. This is a direct replacement sensor that mounts into the factory O2 sensor port with no modification needed.
Do I need special tools to install this?
An O2 sensor socket and basic wrench set are standard. The sensor unscrews from the exhaust manifold — straightforward job for DIY or shop install.
What happens if the check engine light comes back after installation?
A new sensor should clear a faulty O2 sensor code. If the light returns, have the system scanned for other issues — a bad sensor wire, exhaust leak, or engine problem elsewhere could be the root cause.
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
International Orders (Outside USA)
Please be aware your country may charge import fees of up to 20% in some cases. If delivery is refused, return shipping costs us 4x the original shipping fee, so we will charge a 50% restocking fee. By purchasing you agree to these terms.
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