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Grease Guns

G.Gun Grease Gun - 10,000 PSI Foot Operated

SKU: GG80004

57 reviews
  • Develop over 10,000 PSI without batteries
  • Patented pressure return valve easily clears pressure from the hose and returns it to the canister with no mess.
  • Includes the LockNLube Grease Coupler, 10 ft. hose, and the G.Scoop to easily and cleanly refill with bulk grease
  • Industrial strength. Built and tested for the toughest environments.
  • Cut grease costs in half by using bulk grease. Includes the G.Scoop - the fastest and cleanest way to move bulk grease




    The unique two stage pump creates a wave action that smooths out those annoying airlocks.

    This grease gun is industrial strength. Able to pump at 10,000 PSI (690 Bar). It will put grease in stubborn fittings that don’t take grease with a hand pump grease gun. This also makes tensioning excavator (crawler) tracks, in the field, a simple job.

    The canister holds over two gallons of grease. That’s 20 standard size grease tube cartridges you need to replace for every one G.Gun refill. You spend a lot less time refilling or replacing grease tube cartridges and more time getting your equipment greased.

    You can maneuver to get at all of your grease fittings by moving the included 10-foot hose and attaching the LockNLube® Grease Coupler that comes with every G.Gun. No need to pick up and move the G.Gun, simply pump with your foot.


    The G.Scoop makes it easy to load your G.Gun with bulk grease. Quickly and cleanly scoop grease from a bucket into your G.Gun. Move pounds of grease with each scoop and cleanly stores the scoop and paddle in the included case.



    LockNLube provides a full 30-day money-back guarantee on all products purchased from its website. If you are dissatisfied with your purchase, you can return it to us by shipping the item back within 30 days of purchase. Once we receive your return, we will refund you the full purchase price of the item.

    Please ensure that the item you are returning is repackaged securely, with all its component parts included. Please also include any documentation that came with your original order, such as a packing slip or order confirmation.


    Return items to us by shipping to:

    Lock and Lube
    21 Technology Drive Suite #2
    West Lebanon, NH 03784

    For more information, please call 603.795.2298. We’re a small business and we’ll pick up the phone in New Hampshire when you call.


    • All moving parts submerged and lubricated by the grease, lasts a lifetime.
    • Large canister allows regular greasing without endless refilling.
    • Pressure return valve and standard LockNLube grease coupler prevents grease wastage at the grease fitting and easily returns residual grease to the canister, saving you on grease costs and cleanup.
    • No external power required. No flat batteries or costly replacement batteries required.
    • Moving parts create wave action in grease, eliminating air locks and the need for a messy follower plate.
    • No troublesome seals to replace – any bypass which may develop, simply returns to the canister.
    • Clip-on lid keeps rain and dust out.
    • Carry handle hinges away for easy filling.
    • Balanced and easily portable.

    For instructions on priming your G.Gun before using it, see our article and video here.


    Description Specification
    Delivery Rate 0.09 oz (2.7 ml) per stroke (~11 strokes per oz.)
    Delivery Pressure 10,000 PSI (690 Bar)
    Grease Canister Capacity 282 oz (8 Kg) grease
    Delivery Hose 10 ft (3 m) x ¼” (6.35 mm), 2 wire hydraulic hose. Burst rated @ 23,206 psi (1,600 Bar)
    Grease Coupler LockNLube® Grease Coupler. Max. pressure rated at 10,000 psi (690 Bar). Trigger activated lock-on for max seal to Zerk nipple.
    Coupler Thread ⅛” NPT female
    Pump Activation Foot operated
    Pump Mechanism 2-stage self-priming pump with pressure return valve.
    Dimensions & Weight L: 18½ x W: 10¼ x H: 16½ In (L: 470 x W: 260 x H: 420 mm). Dry weight: 22 lbs. (10 kg).
    Patent US Patent #9,097,385
    Customer Reviews
    5.0 Based on 57 Reviews
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    Galina T.
    United States United States
    greasing the tractor

    just exactly what I needed

    BRUCE E.
    United States United States
    Works great , but can’t get it in some spots

    Great slick and easy

    Clay S.
    United States United States

    I love it I have an electric grease gun I was using and having to change three to four cartridges every morning one this really gets out you’ll be able to buy that yacht you’ve never thought about buying if I could change anything I wouldn’t but when the new models come out add 10ft more to the hose so you could pull your truck right beside your equipment without having to lug it around and make it electric with rechargeable batteries with a wireless remote that way you can grease by yourself you’ve already got the top of the line grease system by far so please don’t go with cheap batteries it would be cool to pair up with dewalt on this but keep the foot pump in case the battery died I would gladly pay $500 for a system like this but that’s my opinion I love my g gun

    Paul G.
    United States United States

    Saves a lot of time and Mess Would definitely recommend to Daily greasers

    Buzz L.
    United States United States
    The best and easiest grease gun I have ever used

    The reason I purchased the G-Gun was the brand new tractor I bought came with dried grease and every fitting was clogged, the built up pressure prevented me from removing the Harbor Freight grease gun fitting from the Zerk. I went to the local auto store and every mechanic coming into the store recommended that I purchase the Lock N Lube products, I went to the LNL website and I came across the G-Gun, it was pricey but I was paying $7.00 for a 14 oz tube of grease and I was using 50% of the tube to fight greasing the tractor, front loader and backhoe, more grease came out of the zerk then went into the grease points. I looked online and found the proper NLGI grease in a 5 gallon tub (35 pounds) for $75.00, shipped with no tax added! So I purchased the G-gun and the 5 gallon tub as a money saving investment. The G-Gun came by FedEx, I was expecting a Home Depot type plastic container with a plastic pump on the bottom. WHAT I RECEIVED was a heavy duty steel canister built like a tank with a very sturdy handle on top, very well made and not easily dented, a heavy duty all metal pump with a built in pressure release that I later found out pumps grease very easely by foot, did you ever put the tip of the grease gun on a fitting and found out that you had no room to fully extend the pump handle on the grease gun to pump? After I removed the G-Gun from the box and before I started to fill the G-Gun with grease, I looked at the Lock N Lube YouTube setup procedure video, the video was easy to follow, the setup of my G-Gun was trouble free; I filled it with grease using the handy scoop that comes with the G-Gun and after a few foot pumps, grease stated to pump; pumping the grease into the tractor fittings was quick and trouble free, no extra grease over flowed from any zerks and as soon as I saw grease come out of the seams I released the pressure to stop the flow of grease. I don’t know what else I can say; I am thrilled with my purchase I no longer pay $7.00 for 14oz tube of grease; greasing is now neat and clean and I never have to think about running out of grease when I lubricate the tractor, the side X side or the motorcycle.

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