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Mess Stopper™ Hydraulic Oil Service Plugs, 2 Large, 4 Medium, 8 Small Sizes, Round

Free shipping on orders over $29.99

$18.99

$ 8 .99 $8.99

In Stock

1.Size:8 Medium


About this item

  • Simply push and twist to insert. For unpressurized systems only. No need to keep or search for the right size plug or cap – Mess Stopper fits a wide range of sizes. Operating temperature: -10⁰F to 200⁰F or -23⁰C to 93⁰C.
  • Prevents oil leaks and waste. Keeps equipment and oil clean during servicing. High visibility "Hi-Viz" green/yellow color helps to remind you of the unconnected hoses, ports, and fittings during reassembly. Fits hoses, tubing, pipes, ports, and many types of fittings including JIC 37⁰ flare, 45⁰ flare, push-on, and SAE O-ring. May be cut to desired length with a utility knife or scissors. For industrial, commercial, and DIY use.
  • This service plug kit includes 2 large, 4 medium, and 8 small size plugs. Small size fits hole size range: 3/64” to 1/2” or 1mm to 13mm in diameter. Medium size fits hole size range: 5/16” to 1” or 8mm to 26mm in diameter. Large size fits hole size range: 1/2” to 1-1/2” or 12mm to 38mm in diameter. Includes a slider zip bag to keep your Mess Stopper clean during storage.
  • Mess Stopper is made of oil-resistant NBR rubber and silicone-free. It is resistant to most fluids such as conventional and synthetic lubricating and hydraulic oils, transmission fluids, pure gasoline, diesel fuel, ethylene glycol coolants, and water. It has short-term resistance to ethanol blended fuel and brake fluids. To ensure compatibility, always test the Mess Stopper for fluid resistance by immersing it in the fluid and observing for degradation.
  • U.S. Patent D941,882. Mess Stopper is a U.S. registered trademark of Vibrant Yard Company LLC.


Mess Stopper Hydraulic Oil Service Plugs are most commonly used to prevent oil leaks when servicing equipment and machinery. The plugs also keep your equipment and oil clean during servicing. Its gradual taper allows it to fit a variety of hole sizes so it eliminates the need to keep and store the right size plugs and caps.


Nolan
2025-08-31 13:15:42
Very handy to have for hydraulic lines, fuel lines, etc. they will hold up to a lot of use. The way to go for plugging hydraulic lines unless you need to hold pressure.
rodney
2025-08-11 15:36:28
I wish I found these sooner. These have saved me from making a mess so many times. Also worked great for blocking off vacuum lines when using a diagnostic smoke machine on engines. Strong and flexible.
Nicholas D.
2025-08-07 10:16:58
I work on cars here and there so once in a while I need to plug transmission lines or something similar and these were a great deal for what they are. I'm using these as an alternative to cap-plugs and since these are cone shape, they have a much wider range of uses and applications.
Joseph Harrison
2025-07-28 13:05:11
Works as advertised, no complaints
Dewayne
2025-06-18 11:42:39
Not sure how I did without these for so long. Actually I used bolts, pins, pens, and anything else for normal hoses. When it came to hydraulic lines with metal connections I would use vacuum plugs and other odd and ends.First of all, the color! These are easy to see and even if they get soaked in hydraulic oil they stay bright. I have used these 1/2 dozen times from tractors to small engine repair, they work great.Second and most important, they work. You may have to swap to different sizes but all in all they seal good. I have no problem leaving these in for days while waiting on parts. I have yet to have one cone out when it wasn't suppose to.And last, professional. They just look good, with makeshift stoppers there is always a chance for contaminates or damage. With these they wipe clean and I haven't had any damage to them.
Tierra Myers
2025-04-18 13:57:46
Plugs hydraulic lines appropriately.
Brandon
2025-01-28 18:38:01
I use this all the time. Good quality and every size that I'll ever need.
Ps
2024-11-28 15:40:52
Great buy work well.
Kurt
2024-11-22 17:59:40
Works great for stopping hydraulics leak leaves in for few weeks kept it sealed