QIJIAUTO O2 Oxygen Sensor Upstream & Downstream 2PCS - Fits for Toyota 4Runner 1999-2000 & Tacoma 2000 2.7L 3.4L V6, Replaces 234-9003 234-9001, SG1839 - Fix Check Engine Light, Improve Fuel Mileage

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

More features

• FUNCTION - Solves check engine light issues, lowers fuel usage, and smooths engine performance. Direct-fit design ensures stable operation and long-lasting use for better vehicle efficiency.
• ADVANTAGE - Protective layer helps avoid sensor damage. Made with silver alloy for easy installation. Matches original specs for Toyota 4Runner and Tacoma.
• FITMENT - Works with: for Toyota 4Runner 1999-2000 (2.7L & 3.4L engines). for Toyota Tacoma 2000 (2.7L & 3.4L engines). Check your engine size and connector before buying.
• PERFORMANCE - No coding needed—improves gas mileage and engine response. Meets factory standards for reliable operation.
• TIPS - Compare images and vehicle details to confirm fit. Includes 2 sensors (upstream + downstream).