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DESCRIPTION PAYMENT SHIPPING RETURN POLICY CONTACT US
Feature
Position confirmation
An upstream sensor is before the catalytic (cat.) converter, and a downstream sensor is after the catalytic converter.
Upstream oxygen sensor is also known as sensor 1, or pre-cat, or upper oxygen sensor.
Downstream oxygen sensor is also known as sensor 2, or post-cat, or lower oxygen sensor.
KAX 234-4018 oxygen sensors feature
- Double laser-welded body for durability
- Fast-acting heater for optimal sensor operation
- Premium sensor tube for 100% accurate data
- Coated threads for easy installation
- 16.3 inch cable
Increased fuel efficiency
The sensor achieves optimal engine performance by monitoring the oxygen content in a vehicle’s exhaust and regulating the air/fuel mixture to the ideal ratio of 14.7 parts air to 1 part fuel.
Lower emissions
If the optimum fuel mixture is not maintained, the engine can emit harmful amounts of carbon monoxide and excessive levels of hydrocarbons.
Improved engine performance
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.
Prevents catalytic converter damage
As the catalytic converter is responsible for eliminating harmful gasses from the vehicle’s exhaust system, an incorrectly operating oxygen sensor can cause premature damage to your catalytic converter.
Payment Shipping Returns Contact Us
1) KAC accepts all major credit cards via PayPal: MasterCard, Visa, American Express and Discover.
2) We will only ship to the confirmed PayPal shipping address given with the payment.
3) If you want to ship to aother address, please change your PayPal shipping address before you make payment.
4) To avoid initiating an unpaid item claim, please pay within 7 days.
1) We will ship items locally for US buyers. Usually, for US buyers it will take about 5-7 business days to reach. If you don't get it, please contact us firstly, we'll try our best to support you.
2) For US customers, all items will be shipped out within 1-2 business days with cleared payment. Please include your phone number in the payment note for prompt and secure shipment.
3) Tracking numbers for all orders are added to once they have been dispatched; please log in to to find the tracking information for your order.
1) KAC offers 5 years warranty and a 60 days free return.
Disclaimer: KAC provides a 60-Day easy return satisfaction guarantee. Items to be returned must be in original factory condition.
2) We offer a free return & money-back guarantee. If you are not satisfied with the product for any reason, you can return the item for refund or replacement/exchange. All returns must include the original packaging. (Please refer to our return policy for details.) If you have any questions, please contact us via message.
3) Any items damaged because of incorrect installation will not be refunded.
4) Unauthorized reselling of KAC products is strictly prohibited and we can't honor the warranty if purchasing from an unauthorized reseller.
If you have ANY questions with shipping, product or service, please Contact Us first before leaving response/writing a review or filing a return case. We will solve the problem! We always put our customers first and your satisfaction is guaranteed.
Our KAC Tech are here to serve you. Email us and our expert team will swiftly diagnose the issue and offer the best solution within 12-24 business hours. All off-hours emails will be answered within 24-48 hours.
