Exelent

These make removing a fan clutch a whole lot easier than trying to get a punch bit & air hammer in the limited space you have to work with.

I asked the question above about a very stuck fan clutch. To be honest I was hesitant about buying this tool, for one I am not a mechanic who would use this tool regularly. Secondly, although you will not find this for less money than if purchased from Amazon unless you buy it used it is expensive and a single use tool meaning it is used to remove fan clutches and that is it.

However this is the only way to go! My fan clutch was stuck, I tried every trick in the book including heating up the nut and pounding on a regular fan clutch wrench with a 3 lb hammer. When the UPS driver dropped it off I was like a kid at Christmas, I ripped it open and slapped it on my short stroke air hammer. To my dismay it didn't work. Heated up the nut, nothing. I kept at for several minutes hoping but nothing.

After I quit swearing I realized that I needed a medium or long stroke hammer, those small short stroke hammers would work with this tool on the normal fan clutch but this baby was stuck like nothing I've ever ran across. So I went out and purchased a new air hammer from the big orange store which indecently is going back, not because I am in the habit of purchasing tools, using them and then taking back but because their website listed this hammer as long stroke and it is not, plastered across the booklet it says it is medium stroke. If I wanted a medium I would have bought the Ingersoll Rand Air Hammer 114GQC which is available locally, but it is less here on Amazon so I will purchase it from here since I don't need it immediately now. The big orange model is partially made of plastic and falsely advertised, the Ingersoll model is all metal exterior and has a quick release for the chisels.
(EDIT - the big orange box store air hammer is not plastic in any way that effects the quality of the tool that I can honestly see, it has a rubber'ish' coating on the handle and underside of the barrel. I mistakenly said it was plastic, that is not true. I may end up just keeping it, it did work in the end, still have time on the return policy.)

In any event I hit the nut with a little heat and then the Lisle and after about 10 seconds I saw movement, kept it going and voila it was loose.

I've seen the websites of people bragging this tool up and let me tell you they are not lying, this tool works as advertised. I've been buying more tools and auto parts lately and always do at least a cursory search for prices, I've found that Amazon is at least competitive for most tools and auto parts (if they carry it) and usually less. I bought Gates hoses for my Jeep from Amazon and saved about $40.

For the Lisle LI43300 Pneumatic Fan Clutch Wrench Amazon has the best price period. I saw this listed for as much as $200, if you can find it locally (I couldn't) I'd imagine that you'd pay close to that.
It's made in the USA, I saw a video on youtube that there is a model similar to this one that isn't made here, it didn't come with all the wrenches this one does and the guy wasn't as happy with is as the Lisle, which apparently he had used in the past.

If your thinking about it you probably need it and if you can afford it you won't be sorry but check and make sure the size wrench you need is listed, I saw one reviewer gave it low marks because it didn't come with the size he needed.

My 7.3 diesel wasn't coming up to temp. After some poking around, I found that the fan clutch had seized. It's supposed to cycle somewhere between around 25% and 80% of the water pump speed. With it seized, it was spinning at 100% of the water pump speed 100% of the time. Time for a new one.

I tried every trick in the book to get that fan clutch broke loose. I used ratchet straps, duct tape, pipe wrenches, you name it. I even rented a tool from the parts house. I wound up buying it, not because it worked but because I broke it. That fan clutch was stuck on but good.

I found a video of a fella using this tool set and I figured why not? I'm a suborn old coot and I flat out refuse to take my truck into the shop just for a stupid fan clutch. So I ordered this and bought a decent air hammer from a store in town.

In the video, the fella just gives it a little BURP and the fan clutch is loose and spins right off. I had to jam a screw driver into the bolts, stand on it with one foot and BUUURRRP. It turned but was still tight. Got a fresh bite and BUUURRRP. And one more time. BUUURRRP. I had to turn it a full 180 before it came loose.

This is the only tool that could get the job done. If yours is on just regularly tight. then this thing will get the job done in three minutes instead of an hour. But if yours is super stuck on like mine was, this is the only way of getting it off without damaging the water pump. Best hundred plus bucks I've spent in more than a year. And it saved me the embarrassment of having to take the truck to the shop. Small town. I'd never live it down.

sometimes the right tool can make a "scary" job easy. sure- you can tap the fan with a hammer (breaking the water pump in the process) , you can use screws and what not - but this simple tool made swapping my 2006 liberty fan clutch a 10 minute job.