--- product_id: 3992963 title: "Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI" price: "₨26608" currency: LKR in_stock: true reviews_count: 13 url: https://www.desertcart.lk/products/3992963-locking-grease-gun-coupler-1-8-inch-npt-rated-to store_origin: LK region: Sri Lanka --- # Locks on securely for hands-free use Includes spare rebuild kit for longevity Rated up to 10,000 PSI heavy-duty pressure Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI **Price:** ₨26608 **Availability:** ✅ In Stock ## Summary > 🔧 Lock in reliability, grease with confidence! ## Quick Answers - **What is this?** Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI - **How much does it cost?** ₨26608 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/3992963-locking-grease-gun-coupler-1-8-inch-npt-rated-to) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Comes with a spare rebuild kit ensuring long-term, reliable performance. - • **Lock & Load Efficiency:** Secure lock-on coupler frees both hands for faster, mess-free maintenance. - • **Universal Compatibility:** Fits all grease guns and Zerk fittings—SAE and metric—so you’re always ready. - • **Quick-Release Innovation:** Patented thumb lever enables fast, effortless attachment and removal under pressure. - • **Pressure-Ready Performance:** Handles up to 10,000 PSI, perfect for the toughest industrial jobs. ## Overview The LockNLube Locking Grease Gun Coupler features a secure lock-on design compatible with all grease guns and Zerk fittings, rated for heavy-duty use up to 10,000 PSI. It includes a spare rebuild kit for extended durability and a patented quick-release thumb lever for efficient operation, backed by a 1-year warranty. ## Description Buy LockNLube Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI: Grease Guns - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: The locking mechanism is solid - This LockNLube Grease Gun Coupler is a total game changer. If you’ve ever struggled with traditional couplers popping off, leaking grease everywhere, or just being frustrating to use—this completely solves those problems. The locking mechanism is solid and holds tight on the Zerk fitting, even under pressure. No more grease spraying or wasting product. Once it’s locked in, it stays put, and releasing it is just as easy. Build quality feels very durable and well-made. You can tell it’s designed for real use, not just light-duty tasks. I’ve used it on multiple machines and it performs flawlessly every time. It also saves a lot of time and mess, which honestly makes the whole greasing process way less annoying. Highly recommend for anyone who uses a grease gun regularly—definitely worth the upgrade. Review: Secure, Clean, and Worth It - This grease coupler works extremely well. It provides a very secure, tight hold on grease zerk fittings, which allows for better grease transfer and significantly less mess compared to standard couplers. The spring in the coupler feels strong and well-built, giving you confidence that it won’t pop off under pressure. It is slightly longer and a bit bulkier than the original couplers that come on most grease guns (both electric and manual), but that actually works in its favor. In tight spots where you can’t wiggle or twist the coupler to disconnect it, this one saves a lot of frustration. No more yanking on the hose or fighting to get it off the fitting. When I bought this coupler, I also picked up the LockNLube 8-Piece Quick Connect Greasing Accessory Kit, knowing clearance might be an issue in some areas—and I don’t regret that decision at all. The combination works great and makes greasing much easier overall. I’m very satisfied with this purchase and would absolutely recommend this grease coupler to anyone who does regular maintenance and wants a cleaner, easier experience. ## Features - LOCKS ON, STAYS ON: Secure lock on grease coupler lets you grease machinery with both hands free. No leaks or mess, making maintenance faster and easier for every job. - REBUILDABLE DESIGN INCLUDED: Comes with a spare rebuild kit for long-lasting use. Get the best lock on grease coupler value with easy maintenance and reliable performance. - UNIVERSAL GREASE GUN FIT: Compatible with all grease guns—manual, battery, or pneumatic. The 1/8 in NPT threaded connection fits most grease gun coupler lock setups. - FITS ALL ZERK FITTINGS: Works with SAE and metric Zerk fittings. Quick lock grease gun coupler design reaches tight spots and adapts to any machine for versatile use. - EASY RELEASE UNDER PRESSURE: Patented thumb lever opens jaws for fast attachment and removal. Rated up to 10,000 psi for heavy-duty jobs. Covered by a 1-year warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00H7LPKKU | | Best Sellers Rank | #534 in Automotive ( See Top 100 in Automotive ) #8 in Fuel Transfer & Lubrication Products | | Color | Silver | | Customer Reviews | 4.7 4.7 out of 5 stars (32,153) | | Date First Available | December 9, 2013 | | Included Components | Just the item | | Item Package Quantity | 1 | | Item Weight | 4 ounces | | Item model number | 1/8\\\" NPT | | Manufacturer | LockNLube | | Material | Steel, Rubber | | Maximum Pressure | 10000 psi | | Part Number | GC81011 | | Product Dimensions | 3.45 x 0.63 x 1.66 inches | | Size | NPT With Spare Rebuild Kit | | Warranty Description | 1-Year Warranty | ## Product Details - **Brand:** LockNLube - **Global Trade Identification Number:** 00810102950260 - **Item dimensions L x W x H:** 3.45 x 0.63 x 1.66 inches - **Manufacturer:** LockNLube - **Material:** Steel, Rubber - **Maximum Operating Pressure:** 10000 Pound per Square Inch - **Number of Ports:** 2 - **UPC:** 810102950260 ## Images ![Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI - Image 1](https://m.media-amazon.com/images/I/71AOumYncbL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does this work with Milwaukee grease guns?** A: This does not work on the older Milwaukee m18 grease guns. They used a metric threaded hose on the older ones. The newer guns have standard thread and it will fit those. Take the current connector off the end of your grease gun hose. If the first 1/8 inch of the hose is not threaded, then you have a metric hose and this lock lune will not fit. **Q: Where is this product manufactured?** A: It is a quality product made in South Africa by Gurtech. **Q: After installing it, I couldn't depress the gun's pump. What did I do wrong?** A: Between myself and friends we have successfully installed five of these fittings without any problems. As per the other reviews, I would first check your gun to see if was in fact pumping grease, then reinstall the coupler and try again, before you put it on a fitting. Could be that the fitting jerk that you tried it on was frozen. If it still does not allow grease to flow, it is defective and you will need to return it. **Q: It is just the fitting or does it include the flexible line?** A: It is just the fitting. The hose was included to give context and sense of scale. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The locking mechanism is solid *by C***O on March 29, 2026* This LockNLube Grease Gun Coupler is a total game changer. If you’ve ever struggled with traditional couplers popping off, leaking grease everywhere, or just being frustrating to use—this completely solves those problems. The locking mechanism is solid and holds tight on the Zerk fitting, even under pressure. No more grease spraying or wasting product. Once it’s locked in, it stays put, and releasing it is just as easy. Build quality feels very durable and well-made. You can tell it’s designed for real use, not just light-duty tasks. I’ve used it on multiple machines and it performs flawlessly every time. It also saves a lot of time and mess, which honestly makes the whole greasing process way less annoying. Highly recommend for anyone who uses a grease gun regularly—definitely worth the upgrade. ### ⭐⭐⭐⭐⭐ Secure, Clean, and Worth It *by N***H on February 21, 2026* This grease coupler works extremely well. It provides a very secure, tight hold on grease zerk fittings, which allows for better grease transfer and significantly less mess compared to standard couplers. The spring in the coupler feels strong and well-built, giving you confidence that it won’t pop off under pressure. It is slightly longer and a bit bulkier than the original couplers that come on most grease guns (both electric and manual), but that actually works in its favor. In tight spots where you can’t wiggle or twist the coupler to disconnect it, this one saves a lot of frustration. No more yanking on the hose or fighting to get it off the fitting. When I bought this coupler, I also picked up the LockNLube 8-Piece Quick Connect Greasing Accessory Kit, knowing clearance might be an issue in some areas—and I don’t regret that decision at all. The combination works great and makes greasing much easier overall. I’m very satisfied with this purchase and would absolutely recommend this grease coupler to anyone who does regular maintenance and wants a cleaner, easier experience. ### ⭐⭐⭐⭐⭐ Works like a dream! *by K***M on July 6, 2026* Works great! Putting grease in a zerk has never been easier! Squeeze the head, place over zerk, release and the couple does the rest. When you’re done, just squeeze the head and it comes right off. No wrestling to get it off a zerk, it doesn’t pop off when you’re working it hard. ## Frequently Bought Together - 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. - LockNLube 90 Degree Grease Coupler Adapter - LockNLube Pressure Return Valve for Use with Cordless Grease Guns. No More Pressure Locks! Returns Grease to The Tube. Releases Hose backpressure. --- ## 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.lk/products/3992963-locking-grease-gun-coupler-1-8-inch-npt-rated-to](https://www.desertcart.lk/products/3992963-locking-grease-gun-coupler-1-8-inch-npt-rated-to) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-09-16*