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Why This Tire?
Specifications
| Brand | Ngk |
|---|---|
| Category | Electrical |
| Manufacturer Part # | 21539 |
| UPC | 087295215395 |
|---|---|
| Subcategory | Sensors |
| Weight | 0.5 lbs |
Vehicle Compatibility
| Year | Make | Model | Trim |
|---|
Product Description
The NGK 21539 Oxygen Sensor is a critical part of your vehicle's emission control system, providing real-time data on exhaust gas oxygen levels. This information allows the engine's computer to make precise adjustments to fuel injection and ignition timing, optimizing performance and reducing pollutants. NGK oxygen sensors are engineered for durability and accuracy, making them a reliable choice for replacement.
Shipping & Returns
Fast Shipping
Standard delivery in 3-7 business days. Expedited options available.
30-Day Returns
Return unused items in original packaging for a full refund.
Questions & Answers
Check your vehicle owner's manual or the tire placard on the driver's side door jamb for the recommended tire size. You can also use our vehicle fitment tool at the top of the page to confirm compatibility. If you're unsure, our support team is happy to help you find the right fit.
We offer a 30-day return policy on unused, unmounted products in their original packaging. Simply contact our support team and we'll provide a prepaid return label. Refunds are processed within 5-7 business days of receiving the returned item. Mounted or used tires are not eligible for return.
We ship directly to your door or to your preferred local tire shop for installation. Most local tire shops offer mounting and balancing for $15-$25 per tire. Just provide your installer's address at checkout and we'll ship right to them.
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