About this item
- 🚗【Fitment】: OE# 234-9002 234-4261 O2 Sensor Oxygen Sensor Upstream and Downstream Fit For 2001 2002 Toyota 4Runner V6 3.4L 02 Sensor
- 🚗【Cautions】: Please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Please check your part pictures with our pictures, especially the plug, it must be completely same.Or it will not fit your car.
- 🚗【Quality】: Durability matters, that is why our o2 sensor is crafted from high temperature resistant material for quicker response times. Double laser-welded stainless steel body is totally submersible to seal tight for long life.
- 🚗【Easy Installation】: Manufactured to OE specification, function like the original part or even better.
- 🚗【Warranty】: 1-Year Warranty.If for any reason at all, you are not fully satisfied with the upstream downstream oxygen sensor, simply contact us through Amazon message to apply the service of carefree REPLACEMENT or REFUND.
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Product description
Attention!
- Bank 1 Sensor 1 means Upstream Right/Rear;
- Bank 2 Sensor 1 means Upstream Left/Front;
- Bank 1 Sensor 2 means Downstream Right/Rear;
- Bank 2 Sensor 2 means Downstream Left/Front.
- Many buyers brought the wrong Oxygen Sensor because they donot pay attention to the plug and the length of the sensor. Please check these 2 features before purchase.
Why you choose CAROCK?
CAROCK O2 sensors are manufactured to exacting standards,utilizing the most up-to-date production technology to bring you an O2 sensor that keeps your engine running at its good, for longer
Double laser-welded body for durabilit
Fast-acting heater for optimal sensor operation
Premium sensor tube for accurate data
Coated threads for easy installation
The sensor achieves optimal engine performance by monitoring the oxygen content in a vehicle’s dosage and regulating the air/fuel mixture to the ideal ratio of 14.7 parts air to 1 part fuel
A correctly operating oxygen sensor ensures efficient engine operation by making sure the engine is receiving the correct air/fuel mixture and thereby preventing the engine running lean or rich
A defective or sluggish oxygen sensor can cause a variety of issues, like decreased engine performance. Replacing a defective O2 sensor helps ensure your engine is constantly monitored and operating efficiently, while maximizing performance.
A defective oxygen sensor can cause your catalytic converter to fail prematurely. Replacing a catalytic converter can cost thousands of dollars, significantly more than most standard oxygen sensor replacements.
If complete combustion is not maintained, other chemical compounds can form in large amounts. These include greenhouse gases, carbon monoxide and excess hydrocarbons. Replacing a defective oxygen sensor is the most effective way to control the combustion process and reduce