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Availability:
In Stock.
Arrives
Sunday, Oct 18
Features
- Installs alternator and power steering pulleys including Quad 4
- Blow molded case keeps the tools organized and easy to transport
- Case dimensions 9" long x 7 1/4" wide x 2" high
- Case Dimensions: (L)9 x(W)7-1/4 x(H)2
- Weight 2 lbs.
Description
Astro Pneumatic's pulley and installer kit removes pressed-on alternator and power steering pulleys on late model GM, Ford and Chrysler engines.
Manufacturer: AP Astro
Brand: AP
Model: Pulley Puller and Installer Kit
Item Weight: 8 ounces
Product Dimensions: 7.5 x 9.2 x 2.4 inches
Item model number: AST7874
Manufacturer Part Number: 7874
Date First Available: May 10, 2006
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 18
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Needed just the bearing for my old kit so decided to buy this. Worked fine but the adapter for my 5.4 3v broke while using. Contacted Astro and they warranty the part fast. Lucky I had a back up from my other brand kit. Nice case so far good for the price. Worked perfect for my 5.4 3v Triton.
Reviewed in the United States on January 3, 2026 by J Endo
Item is easy to use and made the task over and done quickly.
Reviewed in the United States on December 20, 2025 by David B.
The instructions are mostly useless. I was able to get the pulley off my old power steering pump and installed onto my new pump, but it was not easy. Since the instructions are so ppor, I was worried that the resistance I was getting might be due to not using the tool set correctly and not just normal behavior. Astro has an excellent reputation for their tools (and I know this is a fairly cheap tool set) but they should really consider having someone review and write a more comprehensive set of operating instructions for 7874.
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Reviewed in the United States on June 21, 2021 by Jimbeaux
Excellent, wonderful tool. I was replacing the power steering on my 86 chev. A frame p/s unit, pain in the neck to replace. The p/s pulley is attached by pressure, not a screw - and there are bolts for the bracket mount behind the pulley. The pulley must come off - and then go back on. This tool worked perfectly! I was puzzled by the directiions, but then I let the engineering speak to me, and off came the pulley. The pulley was 350k miles old. I used a little penetrating oil, let it rest overnight - and off it came. Takes muscle. Do it slow. I used a couple of big wrenches. Then I used another part of the tool to put it back on. You pull it off and you screw-grab it back on. The center spinle of the p/s is hollow and has screw threads which the grabbers take, and pull the pulley forward onto the shaft. Amazing!!! Took me 25 minutes to figure out the tool and take the pulley off. I could now do it in 5 minutes. Took me 7 minutes to put the pulley back on. Requires muscle and slow movement, little at a time.
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Reviewed in the United States on March 5, 2016 by an open mind
Without a pulley tool, most pulleys metal can be muscled off with time and effort, however plastic pulleys tend to break rather than give in to prying or pounding. This kit, effortlessly pulled the power steering pulley from my pump, and made installing the new pulley, a breeze. The cost of this tool, even if only used once, is worth the headache and frustration of not having the right tool and possibly damaging your parts. Use it more than once and it has easily paid for itself frustration avoided, or hiring someone to remove your pulley. Highly recommended!
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Reviewed in the United States on January 21, 2021 by J F
Ok, I have mixed feeling about this product. I needed to remove and install a pulley on a GM power steering pump. Removal is simple and this worked perfectly. Installing the pully was another issue. The bearing and pusher washer were the problem. I could go into a lot of detail on what I think is the issue, but the solution I found was pretty simple. Installing the pulley incorporates a ton of pressure on all parts of the kit. What I found is that during installation is that the friction caused by the pusher nut would always overcome the ability of the bearing. After hours of some redneck engineering, I found the simplest solution was to add some additional "friction". During pully installation on my power steering pump, the inner part wouldn't rotate properly. Causing the bearing and pusher nut to rotate together. this would cause the entire assembly and process to fail. Since the power steering pump pully had to be installed while attached to the motor, the final soution I sound was to put a ratchet strat around the pully. It did not wrap around anything else, but the end result was the friction was just enough to overcome the opposing friction caused by the pully installation. I fought installing the pully for 3 days about an hour each day. After putting the ratchet strap in place, the pulley installation was done in under 5 minutes. Sorry this was long but up until I figured out this solution, I would've given this product a 0 star rating before I came up with the solution. Oh, and I also rented a professional pulley installer from my local parts store and their kit was almost 100% identical to this product.
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Reviewed in the United States on April 30, 2016 by Dawn VanAlstine
DON'T BUY THIS IT IS JUNK!!! Did not even get one use out of it! I am a Master Technician, I know very well how to use tools so trust me when I tell you this is junk. The puller should have one narrow side of the clam shell and one wide side, it does not both are wide. The tip that should slide into the screw shaft does not fit properly I could not get it in at all. I used the tip from my old set similar to this but it was Matco which was pretty good and lasted several years. I thought I would save some money and get this only bc I do not have a Matco guy in my area now. Also the pulley installer does not work either the bearing does not work properly. The bearing is what I needed the most it is what broke on my Matco set. You can get the pulley on after fighting it and when you do there is not stop so its very easy to install the pulley to far and then you have to pull it back to the proper spot. I was able to use it ONLY because of the extra parts from my Matco set otherwise it would have been useless and still the pulley installer is no good . I had to buy a pulley installer from Snap-on for about 4 times as much but I'm sure it will last. I am able to still piece my two sets together to use as a puller.
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Reviewed in the United States on December 24, 2014 by Jonathon K.
I had an annoying power steering leak from the rear plate seal, the pump would also whine pretty loudly in cold weather due to air ingestion. It was time to rebuild the pump. I ordered this tool for the pulley removal and installation as well as a seal kit. I had absolutely no problems at all. The tool smoothly removed the pulley and installed it when I was done. My pump/shaft had little to no corrosion so no extra effort was needed except for the tool. If your pump shaft is rusty you'll need to clean it up best you can before using this or any pulley remover. If the pulley binds, it could break this or any other type of tool so be diligent. I don't think this tool is prone to failure but I do believe some situations are worse than others and if you're not careful, things can strip or snap.
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Reviewed in the United States on October 14, 2017 by GPR