K2 Industries
98-01 Nissan Altima / 94-98 240SX Front Sensor
Description
Description
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.
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