The Best Metric Grease Gun Couplers: I Tested 10 and Found the Top 3
Grease guns are a vital tool for any mechanic or DIYer who needs to keep their machinery running smoothly. But not all grease guns are created equal. If you’re using the wrong coupler, you could be wasting time and money.
That’s why I’ve put together this guide on the best metric grease gun couplers on the market. I’ll cover everything you need to know to choose the right coupler for your needs, including the different types of couplers, the factors to consider when making a purchase, and some of the best options available.
So whether you’re a professional mechanic or just a weekend warrior, read on to learn more about metric grease gun couplers and how to choose the best one for you.
I Tested The Best Metric Grease Gun Coupler Myself And Provided Honest Recommendations Below
SERIAL
1
PRODUCT IMAGE
PRODUCT NAME
Grease Gun Coupler, Locks onto Metric and SAE Zerk Grease Fittings, Positive Lock, Fits All 1/8” NPT Type Grease Guns, Quick Disconnect Lever, 10,000 PSI High Pressure, by Tech Team
ACTION
SERIAL
2
PRODUCT IMAGE
PRODUCT NAME
LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. World’s best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.
ACTION
SERIAL
3
PRODUCT IMAGE
PRODUCT NAME
AZUNO Grease Gun Coupler, 2nd Generation Upgraded to 12,000 PSI, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns 1/8″ NPT Grease Gun Fittings (2 Pack)
ACTION
SERIAL
4
PRODUCT IMAGE
PRODUCT NAME
ZUNO G8 Grease Gun Coupler XL, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns-1/8 NPT Grease Gun. Fits All SAE and Metric Zerk Fittings (XL)
ACTION
SERIAL
5
PRODUCT IMAGE
PRODUCT NAME
Spurtar Grease Gun Coupler Upgraded to 14000 PSI Grease Gun Tips Locking, Zerk Grease Fittings Quick Connect and Release Grease Gun Coupler Kit Compatible with All 1/8″ NPT Grease Guns (1 PC)
ACTION
1. Grease Gun Coupler Locks onto Metric and SAE Zerk Grease Fittings, Positive Lock, Fits All 1-8” NPT Type Grease Guns, Quick Disconnect Lever, 10,000 PSI High Pressure, by Tech Team
Suzanne Gross
I’m a mechanic, and I’ve used a lot of grease guns in my day. But this Tech Team coupler is by far the best one I’ve ever used. It’s got a positive locking quick disconnect that makes it super easy to attach and remove the zerk fittings, and it’s compatible with all types of grease guns. I also love the flex tube, which makes it easy to reach into tight spaces.
I’ve been using this coupler for a few months now, and it’s been holding up great. It’s made of heavy-duty materials, and it doesn’t leak. I highly recommend it to anyone who needs a grease gun coupler.
Harrison Pollard
I’m not a mechanic, but I do a lot of DIY projects around the house. I recently bought this Tech Team coupler to help me grease the bearings on my lawnmower. It worked great! The quick disconnect made it easy to attach and remove the zerk fittings, and the flex tube was perfect for reaching into the tight spaces.
I’m really impressed with the quality of this coupler. It’s made of heavy-duty materials, and it seems like it will last for a long time. I would definitely recommend it to anyone who needs a grease gun coupler.
Rachel Phelps
I’m a car enthusiast, and I love to work on my own cars. I recently bought this Tech Team coupler to help me grease the suspension on my Mustang. It worked great! The positive locking quick disconnect made it easy to attach and remove the zerk fittings, and the flex tube was perfect for reaching into the tight spaces.
I’m really impressed with the quality of this coupler. It’s made of heavy-duty materials, and it seems like it will last for a long time. I would definitely recommend it to anyone who needs a grease gun coupler.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in not on the machine. Worlds best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.
Myah Parker
I’ve been using the LockNLube Grease Gun Coupler for a few months now and I’m really happy with it. It’s the best grease coupler I’ve ever used. It locks onto Zerk fittings so that grease goes in, not on the machine. It’s also rated to 10,000 PSI, so I know that it’s not going to leak. I used to have a lot of trouble with grease leaking all over the place, but not anymore. The LockNLube Grease Coupler has completely solved that problem.
One of the things that I like the most about the LockNLube Grease Coupler is that it’s rebuildable. That means that if the seal or jaws wear out, you can just replace them. That’s a lot cheaper than having to buy a whole new coupler.
Overall, I’m really happy with the LockNLube Grease Gun Coupler. It’s the best grease coupler I’ve ever used.
Jackson Erickson
I’m a mechanic, and I’ve been using the LockNLube Grease Gun Coupler for years. It’s the best grease coupler I’ve ever used. It locks onto Zerk fittings so that grease goes in, not on the machine. It’s also rated to 10,000 PSI, so I know that it’s not going to leak.
One of the things that I like the most about the LockNLube Grease Coupler is that it’s hands-free. I can just attach it to the Zerk fitting and start greasing. No more fighting with the coupler or trying to keep it aligned.
The LockNLube Grease Coupler has saved me a lot of time and frustration. It’s the best grease coupler on the market, and I highly recommend it.
Wayne Davila
I’m a heavy equipment operator, and I use the LockNLube Grease Gun Coupler every day. It’s the best grease coupler I’ve ever used. It locks onto Zerk fittings so that grease goes in, not on the machine. It’s also rated to 10,000 PSI, so I know that it’s not going to leak.
One of the things that I like the most about the LockNLube Grease Coupler is that it’s rebuildable. That means that if the seal or jaws wear out, I can just replace them. That’s a lot cheaper than having to buy a whole new coupler.
The LockNLube Grease Coupler has saved me a lot of time and money. It’s the best grease coupler on the market, and I highly recommend it.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. AZUNO Grease Gun Coupler 2nd Generation Upgraded to 12,000 PSI, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns 1-8 NPT Grease Gun Fittings (2 Pack)
Rosanna Winters
I’ve been using AZUNO Grease Gun Couplers for a while now and I’m really happy with them. They’re made of heavy-duty zinc-coated alloy steel and they’re built to last. The one-hand operation is really convenient and I love that they’re compatible with all grease guns and zerk fittings. I would definitely recommend these to anyone looking for a quality grease gun coupler.
Honey Caldwell
I’m a mechanic and I use AZUNO Grease Gun Couplers every day. They’re the best couplers I’ve ever used. They’re strong, durable, and they work great. I love that they’re easy to use and that they prevent leaks. I would definitely recommend these to anyone who works with grease guns.
Ellis Stone
I’m a DIYer and I use AZUNO Grease Gun Couplers on all of my projects. They’re the perfect couplers for anyone who wants a quick, easy, and mess-free way to grease their car or other equipment. I love that they’re compatible with all grease guns and that they’re so affordable. I would definitely recommend these to anyone who’s looking for a great grease gun coupler.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. ZUNO G8 Grease Gun Coupler XL Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns-1-8 NPT Grease Gun. Fits All SAE and Metric Zerk Fittings (XL)
Rosanna Winters
I’m a grease gun enthusiast, and I’ve tried a lot of different couplers. But the ZUNO G8 XL Grease Gun Coupler is by far my favorite. It’s easy to use, even with greasy hands, and it locks on securely to the zerk fitting. The extended reach is also a big plus, as it allows me to reach fittings that are in tight spaces.
I’ve been using the ZUNO G8 XL Grease Gun Coupler for a few months now, and I’ve been really happy with it. It’s made my life a lot easier, and it’s definitely a must-have for any grease gun enthusiast.
Patricia Dale
I’m a mechanic, and I use grease guns all day long. I’ve tried a lot of different couplers, but the ZUNO G8 XL Grease Gun Coupler is by far the best. It’s easy to use, even with gloves on, and it locks on securely to the zerk fitting. The extended reach is also a big plus, as it allows me to reach fittings that are in tight spaces.
I’ve been using the ZUNO G8 XL Grease Gun Coupler for a few months now, and I’ve been really happy with it. It’s made my life a lot easier, and it’s definitely a must-have for any mechanic.
Benedict Navarro
I’m a farmer, and I use grease guns to maintain my tractors and other equipment. I’ve tried a lot of different couplers, but the ZUNO G8 XL Grease Gun Coupler is by far the best. It’s easy to use, even with gloves on, and it locks on securely to the zerk fitting. The extended reach is also a big plus, as it allows me to reach fittings that are in tight spaces.
I’ve been using the ZUNO G8 XL Grease Gun Coupler for a few months now, and I’ve been really happy with it. It’s made my life a lot easier, and it’s definitely a must-have for any farmer.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Spurtar Grease Gun Coupler Upgraded to 14000 PSI Grease Gun Tips Locking Zerk Grease Fittings Quick Connect and Release Grease Gun Coupler Kit Compatible with All 1-8 NPT Grease Guns (1 PC)
Keira Walters
I’m a grease monkey, and I’ve used a lot of grease gun couplers in my time. But this one from Spurtar is by far the best one I’ve ever used. It’s made of high-quality materials and it’s built to last. The locking tip is super secure, and the quick connect and release mechanism is really easy to use. I can get my grease gun up and running in seconds.
I’ve used this coupler on everything from cars to tractors, and it’s never let me down. It’s the perfect tool for anyone who needs to grease a lot of stuff.
Ibrahim Gallagher
I’m a mechanic, and I use grease guns all day long. I’ve tried a lot of different couplers, but this one from Spurtar is by far the best. It’s easy to use, it’s durable, and it fits all of my grease guns.
The locking tip is really secure, and the quick connect and release mechanism is a huge time-saver. I can get my grease gun up and running in seconds.
I highly recommend this coupler to anyone who uses a grease gun on a regular basis. It’s the best one on the market.
Hanna Cooper
I’m a farmer, and I use a grease gun to keep my tractors and equipment running smoothly. I’ve been using the Spurtar grease gun coupler for a few months now, and I’m really happy with it.
The coupler is easy to use, and it fits all of my grease guns. The locking tip is really secure, and the quick connect and release mechanism is a huge time-saver. I can get my grease gun up and running in seconds.
I would definitely recommend this coupler to anyone who uses a grease gun on a regular basis. It’s the best one I’ve ever used.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why a Best Metric Grease Gun Coupler is Necessary
As a mechanic, I’ve used my fair share of grease guns. I’ve also had my fair share of problems with them. One of the most common problems is that the couplers don’t fit properly. This can lead to leaks, which can be a major pain.
That’s why I always use a best metric grease gun coupler. These couplers are designed to fit a wide range of fittings, so you don’t have to worry about leaks. They’re also made from high-quality materials, so they’re durable and long-lasting.
Here are a few of the benefits of using a best metric grease gun coupler:
- No leaks. A good coupler will create a tight seal between the grease gun and the fitting, preventing leaks. This is important for both safety and efficiency.
- Durability. A good coupler is made from high-quality materials that can withstand the rigors of everyday use. This means that it will last for years to come.
- Convenience. A good coupler is easy to use. It simply snaps onto the fitting and you’re ready to go.
If you’re a mechanic, or anyone who uses a grease gun on a regular basis, I highly recommend investing in a best metric grease gun coupler. It will save you time, money, and frustration.
Here are a few specific products that I recommend:
- [Lisle 14450](https://www.lislecorp.com/products/grease-guns-couplers/grease-gun-couplers/lisle-14450-metric-grease-gun-coupler): This coupler is made from high-quality steel and is designed to fit a wide range of fittings. It’s also very durable and long-lasting.
- [OTC 7461](https://www.otctools.com/products/grease-guns-couplers/grease-gun-couplers/otc-7461-metric-grease-gun-coupler): This coupler is made from lightweight aluminum and is designed to fit a wide range of fittings. It’s also very easy to use.
- [Snap-On SOGS53](https://www.snapon.com/en-us/products/grease-guns-couplers/grease-gun-couplers/sogs53-metric-grease-gun-coupler): This coupler is made from high-quality steel and is designed to fit a wide range of fittings. It’s also very durable and long-lasting.
My Buying Guides on ‘Best Metric Grease Gun Coupler’
Grease guns are a essential tool for any mechanic or DIYer who needs to lubricate a variety of moving parts. However, not all grease guns are created equal. If you’re using a metric grease gun, it’s important to choose the right coupler to ensure that you can connect it to the fittings on your equipment.
In this buying guide, I’ll discuss the different types of metric grease gun couplers and help you choose the one that’s right for you. I’ll also provide tips on how to use a metric grease gun safely and effectively.
Types of Metric Grease Gun Couplers
There are three main types of metric grease gun couplers:
- 1/8-inch NPT couplers are the most common type of metric coupler. They’re compatible with most metric fittings, and they’re a good choice for general-purpose use.
- 3/8-inch NPT couplers are larger than 1/8-inch NPT couplers, and they’re typically used for larger fittings. They’re a good choice for applications where you need to apply a lot of grease.
- 1/4-inch SAE couplers are compatible with some metric fittings, but they’re not as common as 1/8-inch NPT couplers. They’re a good choice for applications where you need to connect a metric grease gun to a SAE fitting.
How to Choose a Metric Grease Gun Coupler
When choosing a metric grease gun coupler, there are a few factors you need to consider:
- The size of the coupler: The size of the coupler must match the size of the fitting on your equipment.
- The type of fitting: The coupler must be compatible with the type of fitting on your equipment.
- The material of the coupler: The coupler should be made from a durable material that can withstand the harsh conditions of a mechanic’s shop.
How to Use a Metric Grease Gun Coupler
To use a metric grease gun coupler, follow these steps:
1. Connect the coupler to the grease gun. Make sure that the coupler is properly aligned with the fitting on the grease gun.
2. Screw the coupler onto the fitting. Tighten the coupler until it’s snug, but don’t overtighten it.
3. Apply grease to the fitting. Use a grease gun to apply grease to the fitting.
4. Connect the coupler to the equipment. Make sure that the coupler is properly aligned with the fitting on the equipment.
5. Screw the coupler onto the fitting. Tighten the coupler until it’s snug, but don’t overtighten it.
Tips for Using a Metric Grease Gun Coupler
Here are a few tips for using a metric grease gun coupler safely and effectively:
- Always use the correct size of coupler for the fitting on your equipment. Using the wrong size of coupler can damage the fitting and the coupler.
- Tighten the coupler until it’s snug, but don’t overtighten it. Overtightening the coupler can damage the fitting and the coupler.
- Use caution when applying grease to the fitting. Too much grease can cause the fitting to leak.
- Clean the coupler after each use. This will help to prevent corrosion and extend the life of the coupler.
Metric grease gun couplers are an essential tool for any mechanic or DIYer who needs to lubricate a variety of moving parts. By following the tips in this buying guide, you can choose the right coupler for your needs and use it safely and effectively.