Maintaining farm equipment isn’t optional, it’s essential. Whether you're running a row crop operation, managing livestock, or working hay fields, uptime is everything. And proper lubrication is one of the easiest ways to prevent breakdowns and extend the life of your machinery.
But traditional grease couplers often make routine maintenance more frustrating than it needs to be. Leaky seals, grease blowouts, and couplers that slip off Zerk fittings under pressure can slow you down and create costly cleanup.
That’s why more farmers are turning to the novative tool that transforms how agricultural professionals approach lubrication.
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What is the Lock N Lube grease coupler?
The Lock N Lube grease coupler is a patented, high-pressure grease fitting connector that clips securely onto standard Zerk fittings. With a simple thumb lever, it locks in place and creates a leak-proof seal that prevents messy blowouts, even at pressures up to 10,000 PSI.
It features:
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A spring-loaded jaw mechanism that locks onto fittings and stays put
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An integrated check valve to prevent back-pressure blowouts
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Compatibility with all standard grease guns, including pneumatic, battery-operated, and manual
Whether you're greasing pivot pins on a loader tractor, u-joints on a PTO shaft, or hard-to-reach zerks on a combine, Lock N Lube ensures you can do it faster, cleaner, and with fewer headaches.
Why greasing is critical for farm equipment
Farm equipment runs hard, and often in dusty, wet, or gritty conditions. Bearings, bushings, pivot joints, and drivetrains need consistent lubrication to reduce friction and prevent corrosion. Without it, metal-on-metal wear can lead to premature failure and expensive repairs.
Common equipment that requires regular greasing includes:
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Tractors: Front-end loaders, steering arms, 3-point hitch pivots, and drivetrains
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Implements: Balers, cultivators, disk harrows, planters, and sprayers
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Harvesters: Combine heads, augers, conveyors, and chopper blades
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Livestock equipment: Feed mixers, manure spreaders, and gates with moving joints
When maintenance is difficult or messy, it’s more likely to get skipped. Lock N Lube helps eliminate that barrier.
Benefits of using Lock N Lube in agricultural maintenance
1. Zero-leak, high-pressure connection
With Lock N Lube, the coupler locks tightly onto the zerk fitting and seals instantly, even under extreme pressure. That means no backpressure leaks, wasted grease, or blowouts that coat your equipment, or you, in a greasy mess.
2. One-handed operation for hard-to-reach fittings
Tight spaces are common in today’s equipment. Lock N Lube eliminates the need to hold the coupler in place. Once it's locked on, your hands are free to pump grease—making it ideal for reaching zerks on tight axles, articulated joints, or buried pivot pins.
3. Reduces maintenance time and waste
By preventing leaks and coupling issues, Lock N Lube ensures more of your grease gets into the joint—reducing how often you need to service equipment. It also saves time during peak planting and harvesting seasons, when every minute counts.
4. Extends the life of high-wear components
Proper lubrication extends the service life of:
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PTO driveline components
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Linkages and pivot assemblies
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Wheel bearings
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Implement drive chains
Less wear means less downtime, fewer part replacements, and smoother operation across your farm.
What grease guns work with Lock N Lube?
Lock N Lube is compatible with almost every type of grease gun, making it a flexible upgrade to your current setup. Pair it with these top-performing models for maximum impact:
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Best for high-volume jobs
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Ideal for larger equipment like balers, combines, or skid steers
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Offers up to 10,000 PSI of pressure
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LockNLube Model LNL151 Heavy-Duty Lever Grease Gun: The LNL151 is a heavy-duty lever grease gun that delivers an ounce of grease in 28 strokes and rated up to 10,000 PSI. Uses a standard 14 oz. cartridge. A 20” heavy-duty hose with In-line Swivel and LockNLube® Grease Coupler makes greasing fast, clean, and easy. The “Loop & Lock” storage feature allows you to secure the coupler when not in use. This means no more greasy mess on your clothes, truck, and shop from loose hoses flying around when you pick up the grease gun.
LockNLube Model LNL153 Heavy-Duty Pistol Grip Grease Gun: The LNL153 is a heavy-duty grease gun that gets the job done! Includes a high-quality 20” hose, In-line Hose Swivel, and LockNLube® Grease Coupler. The coupler locks on and won’t leak. When you’re done greasing just push the thumb lever down to release. The rubber grip and shaped handle make this grease gun comfortable in the hand. Rated up to 5,000 PSI, this gun puts out plenty of pressure to handle sticky fittings. Includes an air bleeder valve so you can load and prime the gun easily.
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Easier one-handed operation
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Great for fieldwork and tighter spaces
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Pairs well with flexible lubrication hoses
Battery-powered grease guns
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Perfect for large farms with multiple machines
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Provides consistent flow with minimal effort
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Works seamlessly with Lock N Lube for high-speed service, such as DEWALT Model DCGG571 Cordless Grease Gun
Other greasing accessories to improve your workflow
Want to build a complete greasing system? Consider upgrading with these:
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Relocation block: Helps with relocating really hard to reach grease zerks, allowing easy and fast greasing of your equipment.
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Grease buster: Helps clears out the clog allowing you to easily pump in new grease
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Longer grease gun hoses: Helps reach tight fittings without bending or twisting the hose
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Grease fitting kits: Replace stripped or clogged zerks and keep extras in the truck
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Quick-connect adapters: Let you swap between couplers or grease guns without tools.
Why buy Lock N Lube from Royal Brass and Hose?
At Royal Brass and Hose, we’ve supported agriculture professionals for over 70 years with the parts and expertise needed to keep machines running. We stock a full line of greasing equipment, fluid power systems, ag hoses, and custom kits, with regional warehouses across the Southeast to get products to you fast.
Our team understands your equipment, your timeline, and your terrain. We’ll help you build a maintenance plan that minimizes downtime and maximizes performance.
Get started: Upgrade to Lock N Lube today
Stop fighting with stubborn couplers and messy blowouts. Switch to a better way to grease with Lock N Lube products and accessories, trusted by farmers, ranchers and mechanics across the country. Need help building a full maintenance setup? Contact us for product recommendations, quote requests, or custom solutions.
