A 20-volt grease gun from a trusted brand. Offers 10,000 psi and adjustable flow and speed. Comes with a 42-inch flex hose and has an LED light. Features a filter to prevent clogs and stands upright on flat surfaces.
On the expensive end of the price range.
A 8,000-psi grease gun with a die-cast iron head and fortified seals. One-handed operation with a rubber grip. Features a lock for lubricating and comes with a flex hose, couplers, pipes, and pointed nozzle. Minimizes air pockets.
May be prone to leaking.
Pistol-grip grease gun with one-handed use. Includes an 18-inch flex hose and has a cast-alloy head and strengthened design. Reaches 7,000 psi and can be filled with suction, bulk fill, or standard cartridge.
May be difficult to install and remove the hose.
A grease gun with cast aluminum heads and a pivot angle. Designed to minimize jams and can be loaded with suction, cartridge, or bulk. Comes with an 18-inch whip hose and a coupler. Reaches 7,500 psi.
May be challenging to set up.
Durable, pistol-grip grease gun with a 27-inch flex hose, coupler, sharp nozzle, and extension tube. Can be filled with a cartridge, bulk suction, or dispenser pump. High-pressure piston has an O-ring to stop leaks.
The nozzle may be difficult to remove.
We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.
Do you own a grease gun? If so, performing your own maintenance on that lawnmower may be easier than you think. The main purpose of a grease gun is to help you keep your vehicles and equipment running smoothly. Using a grease gun, you can deliver grease to any mechanical area where moving parts need to operate smoothly, without too much friction and heat.
Perhaps you’re experienced at making repairs and ready to upgrade to an automatic grease gun. Or perhaps you’re looking to buy your first manual grease gun in an effort to lubricate your equipment. In either case, we're here to help.
There are two basic grease gun types: manual pump grease guns and automatic pump grease guns.
A manual pump grease releases grease when you squeeze it with your hand. It has a spring-loaded piston pump that, in most cases, pushes the grease from a pre-loaded cartridge through the nozzle.
The manual pump sometimes has an extension hose to help you get into smaller spaces. Some manual pump grease guns can be refilled from bulk grease rather than cartridges.
Under the automatic pump grease gun umbrella, you’ll find both electric and pneumatic grease guns. These guns work by pulling a finger trigger. They’re quicker for applications in which you have a lot of points to grease.
The size of the grease gun you need depends on what you are trying to grease. Smaller equipment, such as a lawnmower or tiller, will require very little grease compared to larger vehicles such as tractors, trailers, and trucks.
Grease guns are sized according to what cartridge size you will need to buy for the gun. There are two standard sizes that cover most uses: grease guns with three-ounce cartridges and grease guns with 14-ounce cartridges.
Smaller grease guns have three-ounce cartridges. Designed to apply small amounts of grease at a time, these guns provide ample lubrication for lawn and boating equipment. Because they’re so small, you can easily store a three-ounce grease gun in a toolbox or the glove compartment of your car.
Grease guns generally come with some kind of extension that attaches to the body of the grease gun. The extension is either a pipe or a hose.
A grease gun will be easier to use if you have a longer extension hose or extension pipe, and that’s typically what you’ll get with a grease gun. However, if you have a tractor trailer, a farm tractor, or an RV fifth wheel, you may need an extended hose for tight places that are hard to reach.
Automatic grease guns have much longer extensions than their manual counterparts. They will give you a couple of feet extension with the hose.
Grease guns come with different types of pump action. Check the packaging to determine how much grease is delivered with each pump.
Long-handle manual grease guns can be more difficult to operate, requiring more arm action. However, they do allow you to push more grease per squirt.
Hand grip grease guns are easier to operate, but they tend to deliver less grease per pump. Your hand may get tired more quickly using a hand grip grease gun.
If you decide to purchase a battery-powered grease gun, consider a package deal that comes with a charger and a carrying case. For some people, this is a real money-saver.
Evaluate your storage options before you buy a new grease gun. Cheaper grease guns have a tendency to leak, which can make storage difficult.
The built-in LED lights on some automatic grease guns are very handy for helping locate your grease zerk in tight spots.
Q. How do you know where you need to grease?
A. The piece of equipment you own should have grease points explained in the maintenance manual. You may not need to grease all moving parts, as some come pre-greased and sealed.
Q. What is a grease zerk?
A. A grease zerk is a fitting that works like a valve. It screws on to the end of a joint on your vehicle or piece of equipment and allows you to hook your gun to the joint and pump grease into the right place. There is a ball in the middle of it that allows the grease to go in, but it does not allow the grease to come out through the same fitting.
Q. How do you know when you’ve applied the right about of grease with your grease gun?
A. There are two ways to know, and it depends on the joint you are greasing. Some maintenance manuals specify how many pumps you need to apply. If you do not have that information handy, you can also visually see if you have put enough grease into the joint, because the grease will start to come out of the joint when it is full.