O2 Oxygen Sensor 15717 Downstream Upstream Compatible with 1990-2014 Ford F150 F250 F350 Ranger Escape Explorer Lincoln Mazda Mercury Replaces 15716 15718 Set of 4

Product worked well and solved my problem. Best advice I can give is spray the old O2 with PB blaster and then figure out how you’re going to disconnect the clip. On my car the engineers decided let’s place the clip in a place so hard to reach the guy will give up and buy a new car. The best way to unhook this clip is get a narrow flathead screwdriver and push it into the latch, you can’t squeeze these to unhook them. I had to get a 2 ft Harbor Freight screw driver, grind it narrower and push it up into it while pulling on the wire, I used painters tape to attach the wire to the screw driver to push it back in. It took me 3 hours to unhook the clip and 30 seconds to remove the O2 from the pipe.

Perfect fit on my vehicle the first time I ordered. On some of the top online auto parts I've been given wrong parts often. Plus the value of parts are well worth purchasing.

All of the items fit my car perfect and the arrival time was precise.

THES ARE VERY NICE ITEMS WELL MADE WORK WELL AND GREAT PRICE EASY INSTALL AND COMPUTER ACCEPTS THEM .CHECK ENGINE LIGHT WENT OUT

Exact match and have had no part failure issues BUT relying on knowing the exact bank location or if it's upstream or downstream based on cord length or sensor appearance is almost impossible so yeah if they arrived with either detailed information or each cord tagged it would dramatically cut the amount of frustration & time when installing

Fits and works as new oem

These are not both compatible with upstream and downstream. They're only compatible with downstream in some cases. Had to spend an additional 120 in sensors on top of this because they couldn't get them to fit correctly at a speed shop

It seems that some car's will only use OEM products.My grand marquis 4.6, is one of those car's. 2002All OEM PRODUCTS cost more, but work great!