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OTC

OTC 4573 Universal Overhead Valve Spring Compressor

  • Based on 732 reviews
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Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 9
Order within 14 hours and 31 minutes
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Features

  • OTC's Universal Overhead Valve Spring Compressor is a great option for compressing valve springs - facilitating valve spring removal or valve stem seal replacement on many Cars, Vans, & Light Trucks
  • Ideal for use on installed cylinder heads, especially in vehicles with tight underhood clearances, but can be used for bench work as well
  • Spring loaded jaws easily grip and compress valve springs
  • Legs designed with a built-in offset to compensate for spring wind - keeping tool vertical and stable during use
  • Includes two spring adapters; fits valve spring retainers up to 1-13/16 inch diameter; 1-3/8 to 5-5/8 inch jaw opening; 5-7/8 inch throat clearance

Description

OTC's No. 4573 Universal Overhead Valve Spring Compressor is a great option for compressing valve springs - facilitating valve spring removal or valve stem seal replacement on many Cars, Vans, & Light Trucks. Ideal for use on installed cylinder heads, especially in vehicles with tight underhood clearances, but can be used for bench work as well. Spring loaded jaws easily grip and compress valve springs. Legs are designed with a built-in offset to compensate for spring wind - keeping tool vertical and stable during use. Includes two spring adapters. Fits valve spring retainers up to 1-13/16 inch diameter. 1-3/8 to 5-5/8 inch jaw opening. 5-7/8 inch throat clearance. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it’s a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians’ productivity and shop profits.

Manufacturer: ‎OTC


Brand: ‎OTC


Model: ‎OTC 4573 Universal Overhead Valve Spring Compressor


Item Weight: ‎0.035 ounces


Product Dimensions: ‎5.7 x 8.7 x 1.1 inches


Country of Origin: ‎Taiwan


Item model number: ‎4573


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎4573


OEM Part Number: ‎4573


Date First Available: March 1, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 9

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.

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Top Amazon Reviews

    • Worked great!
Review Image by Harvey Harvey
This worked great removing and replacing the valves on my 7.3 diesel. If it worked on this it should work on pretty much any engine, as these springs are around 300lb of pressure when compressed. Once you have the spring compressed, just give the top a good whack to free up the sticking valve keepers. I had the heads on my bench, so I stuck a rag underneath to keep the valves pressed against the seats so I could get the keepers out. ... show more
Reviewed in the United States on September 8, 2024 by Harvey Harvey
    • Simple to remove a valve spring on the vehicle
This tool is a good deal for it's low price. It gets the job done. The hooks are staggered just right and have enough of a bend to them to where they really grip the spring and turning the star wheel to compress the spring doesn't take that much force. You could spend twice as much on a valve spring puller but this low cost model works just fine. ... show more
Reviewed in the United States on May 22, 2024 by Early Xer1968
    • Good quality, but didn't fit onto the springs on smaller engines.
I was doing a valve job on a 1999 Chrysler Cirrus, 2.5L, 24 valve SOHC. Wouldn't work on the springs because the gripper feet were too thick. It's a quality tool and I'm sure it would work great with bigger springs, but I wouldn't recommend for smaller engines. NOTE - The 4 star rating is only because it didn't work for me and the listing didn't have any indications on the size - It's not a reflection of the quality of the tool. ... show more
Reviewed in the United States on August 5, 2024 by Book Lover
    • Works great, good quality
Changed the valve seals on my 350 Oldsmobile engine This tool worked like a champ No disappointments
Reviewed in the United States on December 20, 2023 by Michael D Cipriano
    • Well made & works great!
I just got the OTC 4573 delivered from amazon yesterday afternoon & have already used it to remove & install the valves in a 1999 Ford Ranger V6. It works great & I have had no clearance issues or any other problems. Once you attach the compressor to the top of the valve spring, the entire process takes approximately 1 minute to compress the spring, remove the keepers, and release the tension from the spring & remove the compressor. This tool is MUCH higher quality than I was expecting & I am once again happy with my choice to purchase an OTC brand tool via amazon. This is a much better quality tool than you will be able to purchase at your local "chain auto store". Unless you are seriously pressed for time, buy the OTC 4573 & wait a couple days for shipping. *** One tip I can give you for longevity of this tool: Make sure you "unscrew" the bolt completely, lube it up with thick grease (i.e. wheel bearing grease) & re-install. It only comes prepackaged with a thin coating of oil, and that will disappear overtime & the threads will wear out quickly once there is no longer lubrication on them. *** WoodstockVA ... show more
Reviewed in the United States on February 4, 2012 by RascalVA
    • Did the job.
Had to check intake and exhaust seals on one cylinder. This was hard to get enough clearance to remove the valve retainers but I did finally get the job done. Glad I didn't have to do all the valves.
Reviewed in the United States on May 30, 2024 by Dragon Rider
    • Worked but painful to use
Twelve valves later, even wearing welding gloves, my hands are wrecked. A T-handle type would be better. This one did get all 12 done, but I'll get something else if I ever do another valve job.
Reviewed in the United States on August 22, 2024 by L. Kleinow
    • Well constructed, works easily
As to the other reviewer's comment that it "tenderized his hand" I do not necessarily agree after using it myself. It was easy to use and did not hurt. That said, I think it really depends on how beefcake your springs are. If you're taking off 40 year old stock springs then it's easy. If you have springs that are holding down a radical hydraulic roller cam, then maybe you're going to struggle. I was trying to decide whether or not to buy this or the large clamp type OTC product. I decided to get this because it was less expensive. I heartily recommend this to anyone who is working on their own personal project. 5/23/2015 Update: I bought the Pro-Form lever action type spring compressor. It is much faster than this. If you're on a tight budget, this will do the job well, but if you can afford it, the Pro-Form lever action will save you a lot of time. ... show more
Reviewed in the United States on July 19, 2013 by Macho Man

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