NTK 21549 Direct Fit Oxygen Sensor - Chevrolet Silverado 1500 / Camaro / GMC Sierra 1500 2003-2017

Is this an NGK or an NTK sensor?

• NTK is the oxygen and air fuel ratio sensor line of NGK Spark Plugs; the sensor and box carry the NTK name.

Which position does this sensor fit?

• It fits the upstream position on some vehicles and the downstream position on others; check the bank and sensor location for your vehicle before ordering.

Do I need to splice wires to install it?

• No. It is a direct fit sensor that plugs into the factory connector.

How many sensors does my vehicle need?

• It is sold individually. Vehicles with more than one sensor position need one sensor for each position being replaced.

Shipping

• In stock orders typically ship within 1 to 3 business days.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Special order items follow a lead time we confirm with you individually before the order is committed.
• Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
• Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
• Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
• Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
• Product images may be representative. The SKU and specifications in the listing are what ships.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty