98-01 Nissan Altima / 94-98 240SX Front Sensor
K2 Industries
98-01 Nissan Altima / 94-98 240SX Front Sensor
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with tags and original packaging. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
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.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-10839-NIS-006-EC |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information