Model: #P3410

4.9 | 77 Reviews
  • Maximum pressure of 10,000 PSI powers through most clogged grease fittings
  • Max flow rate of 7.5 oz/min increases work efficiency
  • Plunger rod markings allow users to gauge how much grease is left in the tube

Greased Up & Ready to Go


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This product is covered by a 3-year limited warranty.

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7.1 lbs
Grease Capacity
16 oz. bulk or 14.5 oz. cartridge


Flow Rate
7.5 oz/minute



18V ONE+™ GREASE GUN is rated 4.9 out of 5 by 77.
Rated 5 out of 5 by from Great Bought this for the farm, my bean planter alone has over 90 zerks so tools like this are nice. I own 2 Lincoln 12v guns as well, although it’s hard to measure power on a tool like this I will say the ryobi has double the output volume of grease which speeds things up dramatically, the light is a nice touch as well and it also goes way further on a battery. That said I did have to repair mine, it blew the hose right off the gun pulling the threads in the aluminum housing with it, I tapped it larger and put a steel insert in and haven’t had a problem since, the Lincoln’s have this already with a pressure relief valve-just stronger vs the hose going directly into the aluminum housing
Date published: 2020-04-30
Rated 5 out of 5 by from Great grease gun for the farm After using manual grease guns for over 20 years for personal and professional work I finally bought the 18v a couple months ago. Looking back at all of the time I spent with the manual one I wish I would have bought it when it first came out. Temps have been down in single digits and it has not skipped a beat when I need to get the job done. When greasing it is so nice to be able to hold the fitting and pull a trigger especially when the fitting is in an awkward or hard to reach spot. I would recommend anyone who is still using a manual grease gun spend the money and see the difference.
Date published: 2021-02-13
Rated 5 out of 5 by from Waited too long for this Great Tool I saw this tool while shopping the internet and since I have made RYOBI cordless tools my of choice for many years I knew I wanted to add this one to my already extensive tool selection. I have farm equipment that requires greasing for every use. Lately manual great guns have let me down on quality. So far this grease gun base performed flawlessly I did enhance its already great package by adding a clip on extension. Looking forward to many good years of use. Great value.
Date published: 2020-01-27
Rated 5 out of 5 by from Works Great! I'm 74 years old and I do my own maintenance on our motorhome to include lubing the chassis. It was very difficult to hold the manual grease gun fitting on the Zerk then try to hold the grease gun and pump at the same time. Frustrating! Behold the Ryobi power grease gun! All I have to do now is hold the fitting on the Zerk with one hand the hit the switch on the 18V Power Gun and I can carefully measure the proper amount of grease that flows into the item to be lubed.
Date published: 2020-04-01
Rated 5 out of 5 by from Great grease gun I use the grease gun around the farm. It's great with plenty of pressure makes fast work of greasing equipment.
Date published: 2019-09-04
Rated 5 out of 5 by from No Mo Pumpin'!! I had seen a few other contractors using different brands of 18V grease guns but wanted to wait and see if Ryobi would make one since 95% of my battery tools are Ryobi. Walaaahh! Purchased this and it makes greasing my tractors much easier! Not nearly the chore it once was. Load and go!
Date published: 2019-09-18
Rated 5 out of 5 by from No more need for a "third" hand! I have long waited this tool to be available, and it is exactly what I hoped it would be! It is always a challenge to use a hand grease gun, hoping the hose stays attached while using both hands to pump the grease in. Of course it seldom does, and grease ends up everywhere. Also, a recent shoulder replacement makes it painful to pump that old manual grease gun. Now it is effortless and cleaner to grease equipment than ever! One hand holds the hose on the fitting while you simply pull a trigger with the other. The grease comes out at a quick, steady pace so it takes no time at all to finish multiple zerk fittings. And with that LED light, you can always find those hard to find zerk fittings! Very happy with and I highly recommend this grease gun!
Date published: 2021-01-27
Rated 5 out of 5 by from The same batterys for all my power tools! It works very nice. I was supprised at how fast it pumps. Its easy to load and the built in light comes in handy. I am pleased that it is easy on batterys so I often use a smaller battery to keep it light weight.
Date published: 2019-10-14
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