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The 8 Best grease gun fittings of 2025

Are you trying to find grease gun fittings among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling grease gun fittings on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 27 hours of research and did 20 grease gun fittings tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best grease gun fittings you can buy today

No. 1
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.
  • LOCKS ON, STAYS ON, WON'T LEAK—LIKE HAVING AN EXTRA HAND! No need to hold the coupler in place while trying to grease your machinery. The LockNLube Grease Coupler locks on tight and lets you use both hands on your grease gun.
  • THE ONLY REBUILDABLE LOCKING COUPLER: We include a spare rebuild kit! It's like getting two grease gun tips for the price of one.
  • 1/8" NPT COMPATIBLE WITH ALL GREASE GUNS - BATTERY, PNEUMATIC, MANUAL: Whether you are using Grandpa’s old Alemite lever grease gun, or the latest battery or pneumatic grease guns, the LockNLube Grease Coupler can be added to upgrade your grease gun.
  • WORKS ON ALL ZERK FITTINGS, SAE & METRIC with a full lineup of adapters to reach any grease fighting on any machine! RATED UP TO 10,000 PSI
  • EASY TO USE: Press the thumb lever to open the LockNLube’s patented jaws and attach to the Zerk. Release the thumb lever and the LockNLube locks on tight! Press the thumb lever again to easily release from the Zerk, even under pressure!
No. 2
THINKWORK Grease Gun Coupler Set, Strong Lock on Greases Gun Couplers with 90° Grease Coupler Adaptor,12000 PSI Quick Release Grease Coupler Compatible with All Grease Guns 1/8" NPT Grease Gun Fitting
  • You'll Get - 0.53"Grease Gun Coupler, 90° Grease Coupler Adaptor, 12" Spring Flex Hose, Cleaning Tool, save your money and be efficient!
  • Design Ideas - Our grease gun coupler is currently the smallest on the market with a diameter of only 0.53 inches and can be used in confined spaces. Designed with a single-lever for easy one-handed operation, you can easily and quickly lock and release.
  • Upgrade Locking & Sealing - With the exclusive patent in the United States, THINKWORK upgraded grease gun coupler adopts upgraded powerful patented 6-jaw structure. With reinforced jaws & high-quality aviation-grade sealing gaskets, Tested at 12000 PSI pressure also prevents leaks.
  • Fit All 1/8” NPT Fittings - Portable grease gun coupler are works on all DIN and SAE grease fittings and attaches to all 1/8” NPT standard grease guns, mini grease guns, pneumatic grease gun and electric grease gun.
  • Wide Application - Our grease gun tool best choice for all-day performance in commercial shops, auto centers and any home garage. Perfect for use in automotive repair, job site large machinery and axles and drive trains. It is also ideal for lubricating farm tractors, plows, stump pullers, disc rakes, seeders, etc.
SaleNo. 3
AKEOIL Grease Gun Coupler, Grease Joint Fittings, 12000PSI High Pressure Grease Nozzle Fittings, Compatible With All 1/8" NPT Grease Guns, For greasing all machinery and equipment filling
  • 【PROFESSIONAL DESIGN】Double handle symmetrical design, saving time and effort in the process of use, while the 6-claw coupler design is easier to close and buckle the grease nozzle, tighter, no oil leakage.
  • 【 HIGH SERENGTH SERVICE LIFE 】Using high quality carbon steel material, surface galvanized treatment, play the role of corrosion and rust prevention, high strength spring to make the work life longer, durable, to achieve the long-term use effect
  • 【 WIDE RANGE OF APPLICATION 】 Butter gun is suitable for automobile, mechanical equipment maintenance, farm axle and transmission system, truck, industrial equipment maintenance and other hard-to-reach grease parts, also suitable for most manual grease guns, the maximum working pressure of 12000PSI
  • 【SIMPLE OPERATION】The fat gun coupler has a smooth and powerful 3 jaw locking function, one hand operation, lubrication without need to hold, after locking can liberate your hands, save time and effort, is a good helper for your work
  • 【AFTER-SALES AND COMMITMENT 】to provide customers with quality products is our pursuit, you have any questions in the process of use please timely communicate with us, our service team will reply to you within 24 hours, give you a satisfactory answer, I wish you a happy shopping
No. 4
LockNLube 90 Degree Grease Coupler Adapter
  • Spring-loaded collar for extra-sturdy connection
  • Easily connect to LockNLube and other couplers when needed
  • Three hardened steel jaws, rubber seal, and check valve make a tight, reliable connection
  • 90 degree right angle adapter
  • Perfect for tight spaces and hard-to-reach fittings
No. 5
Orion Motor Tech Grease Gun Accessory Kit, 11 Piece Grease Gun Coupler Set for Hard to Reach Grease Fittings, Heavy Duty Lubrication Grease Zerk Fitting Adapters with Grease Gun Hose Holder
  • All-In-One Set: Orion Motor Tech's 11-piece grease gun coupler kit includes an extra long grease gun hose, 9 of the most common grease gun adapters, and a grease gun holder to let you reach any fitting without elbow grease
  • Versatile Use: This grease gun accessory kit is compatible with most standard grease guns and grease fittings, ideal for home garages and automotive repair shops
  • User-Friendly Design: The 90° grease gun adapter provides flexibility in tight spaces while the 360° swivel one covers greasing applications at all angles; the 30 cm flex grease hose with a coil spring ensures easy connections and disconnections
  • STURDY & DURABLE: Each of our heavy-duty grease gun tip is made of quality carbon steel with a corrosion proof zinc coating to offer superior strength and unrivaled endurance
  • COMPACT & PORTABLE: This durable grease fitting adapter set comes with a blow-molded case, organizing the parts and keeping them easy to carry, store, and maintain
SaleNo. 6
Tooluxe 61077L Multi-Function Grease Gun and Lubrication Accessory Kit
1,837 Consomer Reviews
Tooluxe 61077L Multi-Function Grease Gun and Lubrication Accessory Kit
  • INDUSTRIAL QUALITY: Perfect for garages or workshops, this accessory kit includes common lube attachments and fits most grease gun couplers and guns
  • ALL-IN-ONE KIT: This all-in-one grease gun kit includes an easy-to-use connect design with 90-degree swivel coupler and 360=degree coupler
  • LUBE IN TIGHT SPOTS: 12" flexible hose with spring fits in tight spaces and kit includes grease injector needle and 1-1/2" needle nose adaptor
  • EXTREME VALUE: Includes practically every fitting at half the price (4" needle nose adaptor, grease gun adaptor and coupler)
  • CASE INCLUDED: Impact-resistant storage case included
No. 7
PONEYA 9 PCS Grease Gun Couplers, Quick Connect Greasing Accessory Kit with Grease Gun Tips 12" Flex Hose & Roll Up Case, Perfect for Quick Release Grease Couplers to Reach Any Grease Fitting
  • [PERFECT FIT YOUR EXISTING TOOLS] All accessories of 9 PCS grease gun coupler set have 1/8′′ NPT thread and a zerk fitting at the adapter end, ensuring a perfect fit for the traditional coupler or quick release press-on grease coupler that you're using. So you can quickly switch grease gun tips according to the condition, making lubrication more convenient.
  • [BETTER QUALITY & LEAK-FREE] Made of nickel-plated alloy steel, all grease gun couplers have high hardness and won’t deform easily. They can still lubricate well even under extreme pressure. And there is no oil leakage or grease entering failure. Possessed with exquisite craftsmanship, their surfaces are smooth, not easy to rust for long time using. Acting as a linkage between the zerk fitting and grease gun, you need to buy a premium set containing various types of nipples in case you need it!
  • [VERSATILE & WIDELY APPLICATION] The kit has everything you need, each coupler has its own unique function. It is commonly used for lubrication in industrial or agricultural machinery, and has a wide range of applications, such as harvesters, excavators, automobiles, tractor parts, etc. In a short, 90° adapters can lock the hard-to-reach fittings, the needle tips can get into very narrow openings. No matter what you encounter, there is always an accessory to solve your problem in time.
  • [PORTABILITY & STORAGE BAG INCLUDED] Contained in a rip-stop, oil resistant 1200D nylon bag, our grease couplers will last long time protecting machine performance. With cover edge and pockets, it not only prevent couplers fall broken, but also prevent them from rubbing against each other. Products are neatly arranged, and there is no need to rush through the toolbox to find couplers. When you work outside, you can feel free to put it in a corner of the car, very portable to store and carry.
  • [CUSTOMER SERVICE] If you are not satisfied with our products for any quality reason, please do not hesitate to contact us at any time. We are there for you 24 hours a day, 7 days a week, 365 days a year! We promise solving your worries in all aspects.
SaleNo. 8
DEWALT Grease Gun Coupler, Heavy Duty, NPT, 1/8-Inch, 3-Pack (DCGG5701-3)
  • For use with hydraulic type grease fittings
  • Max operating pressure up to 10, 000 psi
  • Heavy Duty replacement piece
  • Item Package Dimension: 3.56" L x 2.94" W x 1.25" H
No. 9
AORRZER Grease Gun Coupler, Strong Lock on Grease Couplers, 12000 PSI High Pressure Greases Gun Coupler, Compatible with All Grease Guns 1/8" NPT Grease Gun Fittings,Duty Quick Release Grease Couplers
  • 【Upgrade grease coupler】AORRZER grease gun coupler Upgrade-strong 6-jaw coupler, grease gun coupler reinforced jaws and quality sealing gasket ensure long lasting and stable performance tighter and no oil leakage, Use testing: Leak prevention even when tested at extreme pressures of 12,000 PSI or higher.
  • 【High quality and sturdy】The grease gun coupler is made of upgraded material alloy steel, optimizing the thickness of the steel and upgrading the 6-jaw bite lock on the original basis, quality steel, quality design principle, Wear-resistant and durable Long life span, Lowest lifetime cost, believe me, this will be your best choice!!
  • 【Simple operation】Grease gun coupler with smooth strong 6-jaw bite lock on function allows one-handed operation, no need to hold when lubricating, after locking the grease gun coupler, you can free your hands to operate the grease gun.
  • 【Wide application】grease gun coupler fits all 1/8" NPT standard grease gun, Pneumatic Grease Gun, manual grease gun, electric grease gun, also suitable for all DIN and SAE grease nipples and all SAE and metric Zerk joints. Simply replace your existing grease gun coupler and this Strong grease gun tool is ready for use in automotive repair, job site large machinery and axles and drive trains, it is also great for lubricating farm tractors, plows, stump pullers, disc harrows, seeders and more.
  • 【Customer Service】 AORRZER promises to provide you with a 1-year warranty, as long as you choose the AORRZER grease gun coupler in the use of any problems encountered in the process can always contact us, we will provide you with 24-hour service, so that you have a family-like feeling!
  • 【Reasons to choose AORRZER】With AORRZER grease gun coupler you not only have a new upgraded and enhanced version (high pressure, leak-proof, fast grease filling, optimized steel thickness, 6-jaw bite lock, one-hand operation, lowest lifetime cost) but also the coupler fits all 1/8" NPT standard grease gun fitting, we also promise a 1-year warranty, so you can be assured that this will be your best choice!
No. 10
7pcs Grease Gun Needle Accessory Set, Including 5 Grease Needle Nozzles 1 Grease Needle Dispenser 1 Rubber Nipple Adapter Grease injector Narrow Tight Spaces Needle Point Tip Fitting Tool Coupler
  • Package Content: You will receive 7 pieces of grease needle nozzle accessory set, including 5 grease needle nozzles, 1 grease needle dispenser and 1 rubber joint grease nozzle.
  • Reliable Material: Our product is made of sturdy carbon steel, reliable and not easy to break or deform, can serve you for a long time.
  • Product Size: The bearing grease injector needle measured about 6cm/2.36 inch, the grease needle dispenser is about 7.6cm/2.99 inch and the rubber joint grease nozzle is about 6cm/2.36 inch.
  • Practical Design: These grease injector needles can be used in small and confined spaces. And they can be used to tighten the grease needle cap to prevent oil leakage.
  • Wide Application: Our product is suitable for many places that require grease smoothing, such as automotive metal parts, industrial machines, narrow deep hole metal places, to better protect metal parts.

How to choose a good grease gun fittings

Does the idea of finding a fantastic grease gun fittings make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in grease gun fittings. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top grease gun fittings products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top grease gun fittings on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top grease gun fittings brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top grease gun fittings based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the grease gun fittings were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good grease gun fittings, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your grease gun fittings.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting grease gun fittings for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our grease gun fittings. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what grease gun fittings should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on grease gun fittings.