My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Manufacturer

Part Number

AP4-397
Sale Price

$24.98

2 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The APW Warehouse Supplies AP4-397 is a direct-fit oxygen sensor designed to monitor exhaust gas oxygen content and provide critical feedback to your vehicle's engine control module. This sensor plays a vital role in maintaining optimal air-fuel mixture ratios, ensuring efficient combustion, reducing emissions, and maximizing fuel economy.

Key Features:

  • Direct replacement for OE oxygen sensor applications
  • Precision-engineered sensing element for accurate oxygen measurement
  • Heat-resistant construction designed for high-temperature exhaust environments
  • Pre-wired connector for simplified installation
  • Helps maintain proper engine performance and emissions compliance

Regular oxygen sensor maintenance is essential for preventing check engine lights, poor fuel economy, and failed emissions tests. The AP4-397 provides reliable performance to keep your vehicle running efficiently and meeting emissions standards.

Placed order for a cortex programmer for my 2004 duramax. Best price with fast free shipping. I couldn't ask for a better company to do business with.

very easy sight

Best price I've found for this part.

Great prices and service. Quality parts for the best price online. Will be my first choice form now on.

This was the first time I'd shopped at autolicity. The site was easy to use and you guys had the best price by more than 20%. I'll be back the next time I need parts. Keep up the good work

ordered fuel cans, marked as shipped next day! quick shipping great prices! cant go wrong, will be ordering from them again!

There was no description with my item but the part number is correct so I'm optimistic.

fast

Easy to order...Excited to see the new part and hoping the shipping is quick.

Everything was good

Great quality and prices, no guessing what you're going to get.

Vehicle Specific part look up was a bit off on the bilstein products. Hard to find the rears required for my truck.

Good price, fast shipping. Will buy again

I received my Corsa exhaust for my Sequoia today; I had issues with Autoplicity with regard to the order/availability which once brought to their attention was rectified; in the end I had to wait a little longer than expected to receive my order but it was resolved and hopefully the management learned something from this experience.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy