--- product_id: 50860318 title: "G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛\" BSP)" brand: "gurtech" price: "€ 0.09" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.gr/products/50860318-g-coupler-g-spares-kit-the-original-lock-on-zerk store_origin: GR region: Greece --- # Rebuildable with included G.SPARES kit 690 bar / 10,000 psi max pressure Fits all SAE & Metric Zerk fittings G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) **Brand:** gurtech **Price:** € 0.09 **Availability:** ✅ In Stock ## Summary > 🔧 Lock it, pump it, forget it — the ultimate grease gun upgrade! ## Quick Answers - **What is this?** G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) by gurtech - **How much does it cost?** € 0.09 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/50860318-g-coupler-g-spares-kit-the-original-lock-on-zerk) ## Best For - gurtech enthusiasts ## Why This Product - Trusted gurtech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lock-On & Hands-Free:** Securely clamps to Zerk fittings for mess-free lubrication without holding on. - • **Ergonomic & Efficient:** Eliminates awkward pumping positions, reducing downtime and boosting productivity. - • **Extreme Pressure Ready:** Operates reliably up to 690 bar (10,000 psi) for heavy-duty industrial use. - • **Cost-Saving Rebuild Kit:** Extend product life with easy-to-replace internal seals using the G.SPARES kit. - • **Universal Compatibility:** Works seamlessly with M10x1, 1/8" BSP, 1/8" NPT threads & all grease gun types. ## Overview The G.Coupler + G.SPARES Kit is a patented, heavy-duty lock-on grease coupler designed for industrial machinery lubrication. Compatible with all major grease gun brands and Zerk fittings, it delivers leak-proof, hands-free operation at pressures up to 690 bar (10,000 psi). Its rebuildable design with included spare seals ensures long-term cost efficiency, making it an essential tool for professionals seeking faster, cleaner, and safer maintenance. ## Description Machine downtime costs you money, so you need a proper greasing system that gets the job done. This highly cost effective version, with our G.SPARES Kit, will ensure your G.COUPLER achieves an extended service life. So, if the durable nitrile rubber inner seal is damaged by a burred Zerk fitting / hard contaminant or if it has reached the end of its service life, you can simply replace the serviceable parts. With the help of our unique G.COUPLER grease coupler, you no longer have to pump in awkward, dangerous, and tiring positions. Our G.COUPLER grease fitting is a revolution when compared to the antiquated run-of-the-mill grease couplers you have been frustrated with for years, as it is a simple lock on, mess free, hands free and easy off lubrication solution. So, keep our G.COUPLER on hand at your job site, service workshop, farm, or garage. Simply lock on our hands-free grease coupler to the desired Zerk fitting, bearing, gear or pump from a safe and comfortable position next to your equipment. Because our G.COUPLER is locked on, even when pumped to 690 bar (10,000 psi) extremes, you won’t need to hold on and apply pressure to align the coupler or keep it on the Zerk fitting. You can even hold your greasing device at extreme angles, injecting lubrication efficiently, all the while eliminating leaking grease. Simply pressing the trigger again will release the G.COUPLER from the Zerk fitting - No more hydraulic locks that require twisting, yanking, or screwdrivers. Our hands-free grease coupler assembly attachment is the solution to make greasing easier than ever before. We also have an extra long version that allows you to reach those Zerk fittings that are buried deep. This is especially useful for U-Joints, Harvester Heads, shielded PTO shafts, and any fittings buried deep behind a shield. Try all of our professional greasing and lubrication delivery products for your heavy-duty machinery. Review: Brilliant hands free GCoupler clip it on off you go .. - Used it on my Takeuchi TB016 digger...after fitting it on electric grease I gun...found it clipped on every nipple .the only ones I haven’t done are on the tracks as I’d only refitted them the day before..these might be awkward to get at as G Coupler is a bit Longer ..that said I was able to clip on with ease keeping one hand free whilst other hand operated trigger on gun.no grease Was spilt brilliant bit of kit..time will tell how long it lasts so will give it 5 stars on basis of what I’ve seen so far. Review: Makes greasing simple and easy - Wonderful piece of kit. After fighting with other grease heads that wouldn't release from the nipples, often ending with broken/sheared nipples, this piece of kit does what it says - easy on and off, no issues clamping, no issues removing. ## Features - FOR INDUSTRIAL EQUIPMENT: Our original patented Locking Grease Coupler is a heavy-duty tool ideal for all machinery requiring lubrication at the construction site, mine, farm, forest, maintenance facility, service workshop or anywhere on site. - FUNCTIONAL: Choose from M10x1, 1/8" BSP, or 1/8" NPT thread connections for compatibility to all available Grease Gun Brands & regional specifications. Our G.COUPLER fits all SAE and Metric (DIN) Zerk fitting grease nipples and works with battery, electric, pneumatic, and manual grease guns. - QUICK & EASY: Depress the trigger & attach to the desired Zerk fitting. The lever-action mechanism locks the G.COUPLER to the Zerk, creating a leak-proof seal to the joint. Depress the trigger again to release, no more twisting or yanking, even under maximum operating pressures of 690bar / 10,000psi. - SAVES YOU MONEY: Our rebuildable hands-free G.COUPLER is the leader in lubricant delivery technology. If the internal seal is damaged by a burred Zerk, hard contaminant, or simply because it has reached its service life, use the included G.SPARES Kit to fully rebuild your G.COUPLER. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01K7YJE64 | | Batteries Required? | No | | Batteries included? | No | | Colour | Black, Gold, Silver | | Customer Reviews | 4.3 4.3 out of 5 stars (125) | | Date First Available | 10 Sept. 2016 | | Item Package Quantity | 1 | | Item Weight | 120 g | | Item model number | GC81017SK | | Manufacturer | GURTECH | | Material | Alloy Steel, Rubber | | Number of Pieces | 1 | | Package Dimensions | 8.8 x 5 x 2.1 cm; 120 g | | Part Number | GC81017SK | | Size | ⅛" BSP | ## Product Details - **Brand:** GURTECH - **Colour:** Black, Gold, Silver - **Connector type:** Nipple - **Item weight:** 120 Grams - **Manufacturer:** GURTECH - **Material:** Alloy Steel, Rubber - **Number of pieces:** 1 - **Size:** ⅛" BSP - **Thread size:** 0.125 inch - **Thread type:** BSP ## Images ![G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) - Image 1](https://m.media-amazon.com/images/I/310pSOKm-aL.jpg) ![G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) - Image 2](https://m.media-amazon.com/images/I/31EwFtSi40L.jpg) ![G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) - Image 3](https://m.media-amazon.com/images/I/31QnNXvFDJL.jpg) ![G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) - Image 4](https://m.media-amazon.com/images/I/31ZqrgCTC-L.jpg) ![G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP) - Image 5](https://m.media-amazon.com/images/I/31owVF7poeL.jpg) ## Questions & Answers **Q: Can anyone confirm the width of the sleeve that holds the jaws? I have a few nipples where access is only 15mm wide** A: Hello, Thank you for your interest in our product and query. Unfortunately our G.COUPLER has an outsider diameter of 16mm. GURTECH are working on a new generation G.COUPLER with one of the primary objectives being to decrease the OD. The launch is not imminent so you may need to continue to use a conventional push on coupler. Regards, Paul Gurney G-PRODUCTS ## Customer Reviews ### ⭐⭐⭐⭐⭐ Brilliant hands free GCoupler clip it on off you go .. *by K***S on 28 February 2019* Used it on my Takeuchi TB016 digger...after fitting it on electric grease I gun...found it clipped on every nipple .the only ones I haven’t done are on the tracks as I’d only refitted them the day before..these might be awkward to get at as G Coupler is a bit Longer ..that said I was able to clip on with ease keeping one hand free whilst other hand operated trigger on gun.no grease Was spilt brilliant bit of kit..time will tell how long it lasts so will give it 5 stars on basis of what I’ve seen so far. ### ⭐⭐⭐⭐⭐ Makes greasing simple and easy *by D***E on 18 June 2020* Wonderful piece of kit. After fighting with other grease heads that wouldn't release from the nipples, often ending with broken/sheared nipples, this piece of kit does what it says - easy on and off, no issues clamping, no issues removing. ### ⭐⭐⭐⭐⭐ Pretty Dam Good !!! *by I***W on 18 May 2019* For years I'v been pondering weather to buy a decent coupler or not !! and I must say its absolutely the dogs muts, every single grease nipple was sorted with no hassle what so ever !! expensive for what it is but worth ever penny !! for the first time in 40 years the grease went where it was ment to go - so well worth the cost --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/50860318-g-coupler-g-spares-kit-the-original-lock-on-zerk](https://www.desertcart.gr/products/50860318-g-coupler-g-spares-kit-the-original-lock-on-zerk) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-06-02*