Powerbuilt 648691 Oxygen Sensor Offset Puller

A 7/8" sensor is used for my 02 sensor. I was able to use it quite freely on a perfect sensor when I first put it on. It just took a few turns of a regular 3/8 wrench (not a breaker bar) to get the socket to expand and round the corners of The result was that the job became 100 times more complicated instead of solving it. You should not, I repeat DO NOT buy this if you plan to remove the sensor at any point in the future.

Michelle Clay

| Jan 10, 2021

A project such as this can be a real challenge. The following two tools will come in handy to help you As you well know, there are a number of videos on youtube showing how to install new O2 sensors if the project proceeds the way mine did. It is impossible to predict what will happen at every step. The old harness is hard to disconnect from the new just by pulling it out. When it comes to removing the old sensor one, it can be quite a challenge. The offset socket (the one pictured above) will be useless for removal, but you will need it to hold the new one in place. Then break off the upper part of the sensor. Use a 22mm socket and long breaker bar (I had to use 2 1/2 feet to free mine up) and you should be able to remove the old one eventually. You will probably not be able to replace the old sensor given that the threads are likely to remain in the bung. As long as you have the 18mm thread chaser (item 2 above) it may even be possible to screw in the new one after clearing the threads. Let's not rush into anything Due to the fact that you will need an 18MM tap (item 3) and then re-drill You can tap the bung to release it. I managed to repair the thread with helicoil and have a new bung welded in, but you can see from the internet that there is always the possibility of repairing the thread with a helicoil or even welding The new one should be tightened to about 14 foot pounds of torque with the offset socket. It would be best to order all three tools so you will be prepared for the You'll enjoy it.

Zechariah Conway

| Dec 25, 2020

When I used it for the first time, the product broke. As soon as I tore apart the car at the wheel well to replace my O2 sensor, I plugged this tool into my 3/8" drive, applied torque to the tool to pull out the O2 sensor, and the puller broke. Steel like this isn't of good quality, and is not meant for serious tasks. If the O2 sensor has not been on the car for a long time, it might work with an older vehicle. My house was just a short walk from an Autozone, so I was glad to have one nearby!.

Aubrey Malone

| Sep 30, 2020

I have some advice that might be of use to In the case that the oxygen sensor cannot be taken off because of heat, rust, corrosion, or other problems. If this is the case, then I recommend lowering the pipes from the manifold and placing the o2 sensor upside-down in a vise so that you can I think it's a little awkward at first, but it works fine. In this case, if you're only doing one sensor, it might be worth it to fight it off while the pipe is still connected. You can then drop the pipes and use the vise technique if there is more than one O2 per pipe. With this tool, I could feel the tension put on the steel as I was fighting the o2 sensors off with it. Even if I gave it all I had, I would have snapped it or fallen on the bolt.

I was able to reinstall the o2 sensors firmly with this tool, but I could have used a wrench to accomplish the same task. In the case of newer vehicles, where there is less corrosion underneath, it is most likely to work well.

Novah Mays

| Mar 16, 2021

I used it to remove/loosen maybe 7 NOX sensors before it broke, so I'd recommend buying a good brand if you intend to use it more than once or twice. It's not worth the hassle to return or the shipping to send it back.

Kassidy Sawyer

| May 27, 2021

O2 sensors can be notoriously difficult to remove because they are corroded. This tool is designed for the purpose of removing them. To ensure a good fit, it's essential that the wrench is tight. In this case, the product is insufficient to meet that need. There is a difference between its supposed size of 22 mm and its actual size of 23 mm. There is a gap of 86 mm which will probably allow the sensor to slip and round off the corners. A further risk of damage is that the hex portion is too shallow to allow complete engagement with the sensor body. Previously, I used a product that was far superior to my current product. The recommendation is to avoid.

Zayd SHARPE

| Aug 26, 2021

Removable items are not useable. The tool looked like it was the right tool for the job at first glance. When you initially use the device, you discover that the sizing is in fact much larger than 22 mm and actually closer to 23 mm. Whenever I tried to remove the sensor from the hex ends, it kept slipping and sliding off. It was striping, so I realized that this tool would not be beneficial for removing the material. It was another reviewer who offered advice that led me to use his suggestions. The wiring for the sensor should be cut and a deep socket wrench should be used to remove it. The words just flew out of my mouth. Unfortunately, this sensor can no longer be installed with the tool. I'm assuming your torque specifications don't exceed the recommended range. Look for a different manufacturer if you're a prospective buyer. It's very likely you'll end up stripping the hex off from Powerbuilt because of its poor tolerances.

Juliette Gorman

| Nov 03, 2020

As a result of the offset, it is extremely difficult to apply a lot of torque, and the bolts fit a bit loose, almost stripping the O2 bolt heads. The mechanic had a Snap-On tool on hand when I took it to the shop The socket had a slot on one side of it which worked the way it was intended with a maximum torque. Here is a socket from Tekton that looked very similar to the one used by the mechanic There is also a kit that comes with many sockets, and it looks like one of the sockets has a bigger slot in it so that thicker cables can fit over it.

Carson Stokes

| Dec 26, 2020