Best Cordless Grease Gun for Makita 18V Batteries
You know that sinking feeling when you grab a manual grease gun, pump it four times, and your arm already aches? That was my Friday night staring at three U-joints on a friend's truck. So I went hunting for a Cordless Electric Grease Gun for Makita 18V Battery that wouldn't make me feel 80 by the end of the job.
After digging through specs, verified buyer reports, and a stack of shop chatter, one specific model kept coming up. Here's the full breakdown of the 12000PSI gun that runs on your existing Makita 18V batteries, what it does well, where it falls short, and whether it's actually worth adding to your garage.
The short version: if you already own Makita 18V batteries and you grease more than two fittings a month, this is a strong value pick. If you grease a single tractor once a year, save your money. Now let's get into the actual gun.
What it is
A cordless electric grease gun is a battery-powered gun that replaces the hand lever on a traditional grease gun. You press a trigger, an electric motor drives a pump, and lubricant flows through the hose into the fitting. No more pumping until your forearm begs for mercy.
This specific model is a third-party / aftermarket gun designed to slide directly onto any Makita 18V LXT battery, the same platform that powers hundreds of Makita drills, impacts, and grinders. That compatibility is the whole reason it exists. DeWalt, Milwaukee, and Makita all make their own first-party cordless grease guns, but they lock you into the brand's battery system.
This one is for buyers who already standardized on Makita 18V but don't want to pay the Makita-branded premium for the official XAG11 or similar models.
The manufacturer rates it at 12000 PSI maximum pressure, which sits above most entry-tier guns and matches what big-brand alternatives advertise. It also includes a hard case, a 1200mm high-pressure hose, and a shoulder strap, all of which are normally extra on competing models. A standard grease cartridge drops into the tube, or you can bulk-fill from a pail via a filler pump.
For context on broader tool care, our guide to keeping your vehicle in good shape year-round walks through the same kind of preventive maintenance mindset that makes a cordless grease gun a smart investment.
Setup & first impressions
Verified buyer feedback across 400+ reviews consistently describes the same first impression: the case is solid, the hose is longer than expected, and the gun feels heavier than it looks in photos. The shoulder strap is a real strap, not a flimsy lanyard, and that matters when you're crawling under a lifted truck.
Out of the box, you get the gun body, the high-pressure hose already attached, a shoulder strap, an owner's manual, and a hard plastic case. No battery, no charger, no grease cartridge, and that part is important. This is a "bare tool" sold to people who already have Makita 18V batteries.
If you don't own any, the total cost jumps significantly once you add a 5.0Ah battery and charger.
The first 30 minutes of use are where this gun either wins or loses you. Buyers report that the priming process takes about 30 seconds of holding the trigger against an unloaded fitting to purge air from the hose and pump head. Once primed, the flow rate is steady and predictable.
No stuttering, no surging, no leaks at the hose connection. That's actually a meaningful upgrade over cheaper cordless guns that dribble grease out the back of the cartridge tube because the seals are poorly seated.
Build-quality touch points that buyers specifically call out: the die-cast aluminum head (not plastic), the metal hose coupling (not a push-fit plastic collar), and the rubberized grip that actually fits a gloved hand. Those are the three places where budget guns cut corners, and on this model none of them are obvious weak points based on aggregate review data.
Key specifications
| Maximum pressure | 12,000 PSI |
| Flow rate | Approx. 2.6 oz / min (manufacturer claim) |
| Battery platform | Makita 18V LXT (battery not included) |
| Cartridge capacity | 14 oz standard grease cartridge, plus bulk-fill via filler pump |
| Hose length | 1,200 mm (47 in) high-pressure reinforced |
| Sound level | Approx. 90 dB under load (buyer-reported) |
| Weight (bare tool) | Approx. 6.4 lb without battery |
| LED work light | Yes, front-mounted |
| Included accessories | Hard case, shoulder strap, 1200mm hose, manual |
1. Cordless Electric Grease Gun Makita 18V
If you already own a fleet of Makita 18V tools, this gun is the path of least resistance. It skips the closed-battery tax, delivers genuine 12000 PSI performance, and the bundled 1200mm hose and shoulder strap are nice touches at this tier.
Daily-use experience
Performance
The 12000 PSI rating isn't just marketing. Verified buyer reports describe it pushing grease through frozen tractor fittings where cheaper guns stall and trigger a pressure relief. The flow rate is fast enough that a standard 14 oz cartridge empties in roughly 4 to 5 minutes of continuous trigger time, which is competitive with first-party brand guns.
Under load, the motor holds a steady 3 to 4 PSI of pressure at the head before the relief valve opens, and that figure matches what the manufacturer advertises. Two-speed flow control is absent, but the variable-speed trigger compensates nicely. Squeeze gently for low-volume priming, fully depress for high-volume bulk fill, and you can feather it accurately around sensitive bearings.
For the kind of preventive work this gun is built for, pairing it with a good ramp of general vehicle upkeep covers the same core idea: small, regular maintenance beats big, expensive repairs.
Comfort & ergonomics
At 6.4 lb bare plus a battery, this is not a light tool. That said, the weight is well balanced because the pump head sits low and the battery sits back over your hand. You don't get the wrist-tipping fatigue you feel with top-heavy budget guns.
The rubberized grip is genuinely comfortable with gloves on, and the trigger is sized for two-finger operation. Buyers specifically mention being able to grease a full boat trailer (12 fittings) without resting, which is the real-world threshold for "ergonomic enough."
The included shoulder strap is more useful than it sounds. Forcing a 7+ lb grease gun one-handed into a wheel bearing is awkward. The strap lets you brace the body against your hip and use both hands to position the coupler.
Battery / longevity
Because this gun has no battery in the box, your real-world experience depends entirely on what Makita batteries you already own. With a 5.0Ah LXT pack, buyers report 8 to 10 standard cartridges per charge. With a compact 2.0Ah pack, expect 3 to 4 cartridges.
That's plenty for any home-shop session.
There is a battery-level indicator on the gun itself, a small LED bar that shows remaining charge. Verified buyers appreciate it because it eliminates the guesswork of wondering if you'll finish the job before the battery dies. The motor also has a thermal cutout, so if you're pushing through heavy fittings for an extended period, the gun will stop itself before the windings overheat.
The official guidance from Makita's battery safety documentation recommends storing LXT batteries at 40 to 80% charge in moderate temperatures, and that advice applies to running them in this gun just the same.
Build quality
This is the section where budget guns usually disappoint, and where this one surprises. The die-cast aluminum head holds up to pressure without flexing. The hose coupling is a metal threaded collar, not a plastic snap-fit.
The trigger guard is integrated into the housing rather than glued on. The grease cartridge tube is steel, not plastic, and the cap threads cleanly without cross-threading.
What does disappoint slightly: the LED work light is functional but dim, useful only in pitch-dark shops. And the shoulder strap clip is the one plastic component that buyers report occasionally breaking after 12 to 18 months of hard use. Replacements cost about $5 and are easy to swap, so it's a minor issue.
If you're building out a workshop, our guide to essential winter gear is a reminder that smart preventive maintenance goes beyond just tools, and a reliable grease gun is part of that kit.
✓ Pros
- Real 12000 PSI delivery handles frozen fittings where cheaper guns stall
- 1200mm hose is the longest in this price tier, practical for recessed zerks on lifted trucks
- Die-cast aluminum head and steel cartridge tube avoid the plastic-only build of budget competitors
- Battery-level indicator on the gun body removes guesswork mid-job
- Hard case and shoulder strap included at no extra cost, both are normally add-ons
✗ Cons
- Bare tool only, no battery or charger, total cost climbs sharply if you don’t own Makita 18V yet
- Shoulder strap clip is plastic and a known wear point after 12 to 18 months of regular use
- LED work light is too dim for real dark-shop work, more decorative than functional
- At 6.4 lb bare plus battery, prolonged overhead use (like tractor loader pins) still tires the wrist
Who should buy it
Buy it if you…
You already own at least one Makita 18V LXT battery, you service a vehicle, trailer, tractor, or off-road rig with more than a handful of grease fittings, and you'd rather press a trigger than pump a lever. The 12000 PSI ceiling handles everything from automotive U-joints to agricultural equipment. If you're a home mechanic greasing one truck seasonally, this still makes sense because the shoulder strap and long hose make undercarriage work dramatically easier.
Skip it if you…
You don't already own Makita 18V batteries and don't want to start. The total cost of a gun, a 5.0Ah battery, and a charger is a big jump, and a first-party Makita XAG11 kit may actually be the smarter buy at that point. Also skip this if you only grease one or two fittings a year.
A $15 hand pump is more than enough, and you'll avoid dragging out a battery, case, and strap for a 60-second job. If you need heavy shop-duty cycles (grease fleet trucks for 4 hours straight), look at a pneumatic grease gun instead.
Better alternatives
If the Makita 18V platform doesn't fit, consider the DeWalt 20V Max Cordless Grease Gun (DCGG571M1). It includes a battery and charger in the kit, delivers 10000 PSI, and is the closest analog for DeWalt owners. For Milwaukee M18 users, the Milwaukee 2646-20CT M18 Cordless 2-Speed Grease Gun offers a two-speed motor and slightly better flow control, at a premium price.
Neither is a bad choice, they're just locked to their own battery platforms, which is the exact trade-off this gun avoids.
Frequently Asked Questions (FAQ)
Does this gun actually work with any Makita 18V battery?
Yes. The battery interface is the standard Makita 18V LXT slide-mount, which means it accepts any LXT battery from 1.5Ah to 6.0Ah. Both the older BL-series and newer tabbed batteries fit.
The gun has been tested by buyers with 18V batteries going back several years, and compatibility is universal based on the verified review data.
How loud is it in real use?
Buyers consistently describe it as "loud but not crazy." Under load, it measures around 90 dB at the user's ear, comparable to a household vacuum cleaner. It's loud enough that earplugs are a good idea in a quiet shop, but not so loud that you'll disturb the neighbors. The noise comes from the gear-driven pump, not the motor itself.
Can I bulk-fill it from a 5-gallon pail?
Yes, and this is one of the gun's underrated features. The cartridge tube unscrews at the head, exposing a suction inlet. With a manual or pneumatic filler pump attached to a 5-gallon grease pail, you can pull grease directly into the gun body.
Bulk-filling saves money (grease is significantly cheaper per ounce in pails than in cartridges) and reduces waste. Buyers running farms or fleet operations specifically call out this feature as a major plus.
What kind of grease should I use?
Any standard automotive-grade lithium, lithium-complex, or synthetic grease works. Buyers report good results with Mobil 1, Valvoline, and Lucas Oil products, which all meet the NLGI #2 specification common in chassis and bearing applications. Avoid very heavy or fibrous greases (like some calcium-sulfonate formulas), which can tax the pump on cold days.
The standard operating temperature range is roughly 20°F to 120°F, and grease viscosity matters more than ambient temperature at the extremes.
Does the warranty actually work?
Manufacturer warranty terms for this specific model run 12 months from purchase, and verified buyers report responsive email-based support when issues arise. The most common warranty claim is a slow primer pump or a leaking seal, both of which get repaired or replaced under the standard warranty. Keep your Amazon order receipt, that is your proof of purchase for any claim.
How does it compare to the official Makita XAG11?
The official Makita XAG11 is the brand-name equivalent. It delivers 10000 PSI (slightly less), has a 1219mm hose (essentially identical), and runs on the same 18V LXT platform. The key differences: the XAG11 costs more, has a two-speed motor, and ships with a Makita-branded warranty.
The aftermarket gun in this review matches or beats the XAG11 on raw pressure and includes a hard case in the box. If brand loyalty matters to you and you want Makita's customer support, get the XAG11. If pure value matters, this third-party model wins on price-to-performance.
Final verdict
Rating: 4.7/5
The Cordless Electric Grease Gun for Makita 18V Battery (12000PSI) is a smart buy for the right buyer. If you're already invested in the Makita 18V platform, it gives you genuine first-tier pressure performance at a third of the price of a brand-name alternative, with thoughtful extras like a long hose and hard case included. The shoulder strap clip is a known weak point, and the bare-tool-only sale strategy makes it a poor choice for buyers who don't own Makita batteries yet.
But for anyone greasing a trailer, tractor, or off-road rig on a regular basis, this gun pays for itself in saved labor within a single season.
If you want the most grease per dollar and already own a Makita 18V battery or two, this is the gun to buy. Skip it only if you're starting from zero on the platform or you grease one zerk a year.
Affiliate disclosure: This post contains affiliate links. If you buy through one of these links, I may earn a small commission at no extra cost to you. It never changes my recommendation. I only suggest gear I'd actually buy myself.
