Lisle 44180 Fan Clutch Spanner Wrench - Heavy Duty Cooling System Tool for Automotive Repair & Maintenance | Perfect for Mechanics & DIY Enthusiasts

“Just use an adjustable wrench and whack it with a big hammer”. And it might work. But it also might not. It might not work and and also bend a shaft, distort the water pump seal at the block, etc. This is how grownups take the fan clutch off. Also, the ones you rent or borrow at the parts store are usually so beat up they’re almost worse than the wrench-and-hammer method.Worked perfect for 2001 Silverado 5.3L. Without the wrench I wouldn't have been able to get fan off.I'm a mechanic full time and this is the best fan clutch removal tool I've ever used. Used it 3 times in the week after I bought it, and several times since. Pops them loose with little to no effort with your air hammer.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 Kit works as describedI ordered this set to remove a VERY stubborn fan clutch on a Jeep 4.0 engine. I was very impressed with how stout the tool was. It is always a bit intimidating to buy a tool online without being able to see it. You hope when the tool arrives, it's not a flimsy piece of junk. Not to worry with this tool! The part that fit my Jeep was very robust and held up to the pounding of the air hammer quite well! I did have to borrow a bigger air hammer, as mine was not strong enough, but once I got that in place, it zipped that stubborn nut right off. Two thumbs up!I recently changed the water pump on an 08 canyon, 3.7 engine. This tool made it easy to remove the fan. There is little clearance so a flat wrench like this is necessary... I don't know if I'll use this tool again anytime soon but it was worth itI tried other methods to break the fan loose and nothing worked for me. Ponied up the $ and bought this bad boy and it didn’t take any time to get the job done. Heavy duty just make sure to wear gloves for when it breaks loose.Breaks clutch fans loose easily. Just remember some are left hand thread.Used it for removing the fan clutch from an 01 duramax. Clutch came off in seconds. It also tightened the clutch in seconds. Great kit.Don't waste your money. i waited a week for this tool and broke it right away trying to remove clutch fan. the pegs bent.made short work of fan removalchinoiseries qui manque de précision mais apres modif c'est ok