- Designed to compress valve springs on overhead valve engines
- Includes two valve spring adapters, which fit valve spring retainers up to 1" (25mm) and 1-3/16" (30mm)
- Unique, direct action compressor lever gives better visibility of valve spring retainers located in difficult access areas
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Product Details
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Product Specifications
Product Information
BrandOTC
Manufacturer Part Number4572
Sizing and Specifications
Item Weight5.1 Pounds
Height1.25 inches
Length16.50 inches
Width8.25 inches
Product Description
Jaw opening of 1-3/8 inch to 5-5/8 inch (35mm to 142mm) and throat clearance of 5-7/8 inch (150mm).
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Customer Reviews
Most Helpful Customer Reviews
4 of 4 people found the following review helpful
Amazon Verified Purchase
This one works very well with all of my honda OHC heads. i been looking for this tool all this time, well, finally found the one! This one will go deep in the head to compress the spring, escpecially all those DOHcC vtec heads.
3 of 3 people found the following review helpful
Amazon Verified Purchase
After trying three different devices to compress the springs on a small Yamaha single cylinder motorcycle head, I bought the OTC 4572. I was a bit apprehensive that it would be too big, but when it arrived it did the job in five minutes. Huge range of adjustment made the large overall size not a problem, but the best feature is that it acts exactly in line with the valve and has enough reach to get into the narrow valve chambers of the Yamaha head. Easy access to the collets when the spring is compressed also helped make the job an easy no-brainer. The over-center lever just holds the tool in place on the valve head and spring retainer. Actual compression comes from tightening the lower screw, so the spring is compressed gently with no danger of the compressor jumping off and scattering the collets around the shop, never to be seen again. It would work as well on large car or truck cylinder heads as it did on my little motorcycle engine. The OTC 4572 is doubtless the best valve spring compressor I've ever used
3 of 3 people found the following review helpful
Amazon Verified Purchase
I bought this tool to service the valves on my classic Triumph overhead cam engines, namely the TR7, Stag and Dolomite Sprint. An OHC engine needs a tool that will reach well down into the tappet bore to compress the valve springs. This tool worked beautifully, and it would work just as well on pushrod engines also. Very sturdily made. This is the only valve spring compressor I'll need in the future.
Most Recent Customer Reviews
Very impressive!
I got this and opened the box and said wow. It's big and very well built. Bullet proof. I have no doubt at all that this will do a fantastic job and do it well for many years to... Read more
Published 2 days ago by Michael
perfect tool for the job
this valve spring compressor works great. it has the sizes i needed and does just what i bought it for. a great tool to go in my collection.
Published 1 month ago by nomdeplume
Perfect Tool for Valves
Tool is well made and will last a life time. Tool is excellent for installing and removing valves from engine head. Tool is also very easy to use. Read more
Published 1 month ago by REVITHI
OTC 4572
This thing works just great. Easy to set up and use over and over. A must for changing valve seals on todays ohc motors.
Published 1 month ago by Brian Lamprecht
My BMW head saver
I am doing my first engine re-build in over 30 years--making what is known to BMW folks as a " stroker I"--although the "I" head appeared to be in good condition, I thought it wise... Read more
Published 2 months ago by Robert O. Fouts
Mercedes M112 engine
I used the compressor for the replace of valve stem seals of a Mercedes Benz M112 engine (V6, 3.2 liter engine). Read more
Published 2 months ago by Alejandro Fernandez
Works as advertised.heavy duty construction.
Received as advertised works great.working on cb900f 1982.,easy putting springs back on head.tool is constructed well does not feel cheap.highly recommend . Read more
Published 3 months ago by George mustang 65
Great for EJ20/255/257 and 4g63
Just got this today. Took 1 min to set it up for a sti head. Took 30sec to get the valve out. Easy to use. Seems really sturdy. Read more
Published 5 months ago by Wrxtacy2003
Works Great, as described in the hype.
The compressors works like a charm (on my 2.4 L 4 cyl neon). I would like to have seen better, clearer directions, but after a few minutes of playing with it, it wasn't hard to... Read more
Published 6 months ago by Geckosan
worked perfect, couldnt ask for more
worked perfect, couldnt ask for more. I was able to get the valve job done without any issues, If you need to change out valve stem seals this thing works great. Read more
Published 6 months ago by Jake
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