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66784 Stud Mount Engine Valve Spring Compressor Tool for Remove & Install fit for All 3/8 Inch and 7/16 Inch Rocker Studs Valve Springs and Retainers

4.7 (4) Write Review
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$23.39

$ 11 .99 $11.99

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  • Application: 66784 valve spring compression tool is generally fits for removing and installing the valve coil springs of all 3/8 inch and 7/16 inch rocker studs, specially designed to compress the valve spring with the cylinder head on
  • Function: Valve spring compressor is a tool used to compress the springs on the valves of internal combustion engines. It can easily and quickly remove and replace the springs on the engine valves, ensuring that you complete the work faster
  • Easy to use: Rotate the handle 360 degrees to compress and lock the spring to the desired height, press down to compress the coil spring, then remove the valve retainer and slowly release the removed valve spring
  • Leverage Compression: Stud mount valve spring compression tool consists of a steel lever head and a metal rod with a smooth rubber handle, which are detachable. Based on the lever principle, the handle provides sufficient force to compress the spring and save manpower
  • Premium materials: Constructed with heavy-duty steel structure to ensure high strength and durability, strong bearing capacity, not easily deformed, and extended service life
  • After Sales Service: When you have any other questions about our products, or if the product you purchased does not meet your expectations, we are always ready to solve your doubts. We wish you a pleasant shopping experience


Product Description

rocker studs Valve Spring Compressor

A valve spring compressor is a tool that is used to compress the springs on valves in an internal combustion engine. This is necessary when removing the valves from the engine for maintenance or repairs. Once the spring is compressed, the valves can be removed. Once the repairs or maintenance are completed, the valve springs are reinstalled and the compressor is used to decompress them

66784 engine valve spring tool
valve spring remove tool

Installation steps for 6784 valve spring Compressor tool:

  1. Thread the valve spring compressor right onto the stud
  2. Get your fork to line up with the spring and install the handle
  3. Press it down onto the spring to the right locking position so you can get the valve keeper out
  4. Slowly decompress it and remove the spring out easily

66784 stud mount valve spring compressor

360° Rotating Thread Head

3/8 inch Valve Spring Compressor

Heavy Duty Steel

Not Easily Deformed

7/16 inch Valve Spring Compressor

12 Inch

Handle with Rubber Grip


Dana Heselton
2025-04-19 16:34:38
Replaced valve seals on my old hot rod.
Mark dolin
2025-03-25 17:23:11
Works like it should
Letmetellu
2025-03-16 19:12:23
Fit both sizes. 3/8 and 7/16. Keep the valve up with air and changed out my springs.
Aliviana York 2.0
2025-02-20 13:06:33
It works.A bit difficult to use on a cylinder head that is not bolted down.To switch from 3/8 over to 7/16 you have to take the tool apart and flip the center shaft over.The lever handle is a sloppy fit, but it works.I have only tried it out on a small block chevrolet but can't see why it wouldn't work on other engines that have pushrod and stud type rockers. Probably no good for chrysler rail type rockers.I Hope My Review And Pictures Were Helpful To You !!