End greasing frustration with the original locking grease coupler!

• Locks on, stays on, won’t leak. Rated to 10,000 PSI – Patented locking jaws grip the Zerk to create a secure, leak-free seal that will not pop off under pressure, enabling true hands-free greasing and cleaner lubrication.
• Easy release, even under pressure. No broken Zerks – Thumb-activated sleeve locks and unlocks quickly with one hand, disconnecting safely without pulling, fighting, or damaging grease fittings.
• Universal 1/8" NPT compatibility – Fits all standard grease guns including battery, pneumatic, and manual models, making it an easy, reliable upgrade for any grease gun.
• Grease goes in, not on, the machine – Internal seal directs grease into the bearing instead of leaking around the fitting, reducing mess, waste, and cleanup while improving lubrication.
• Works on all Zerk fittings, SAE and metric – Designed for universal fit across standard grease fittings for dependable performance on automotive, agricultural, and industrial equipment.
• Rebuildable design. Lowest lifetime cost – The only fully rebuildable grease coupler, available with or without a rebuild kit, extending service life and reducing replacement cost in demanding use.
• Patented and Proven – Featured on TruckU on the MotorTrend Channel, trusted by professionals for reliable, leak-free greasing. U.S. Patent #8,955,544

Specification:
Power type: Manual
Purpose: Grease gun parts
Type: Heavy Grease Gun
Nozzle diameter: 3.0 mm

A: Locking and embedded high-pressure double-blind grease nozzles 2

Packing list: 

Grease gun parts x1

Grease Coupler – Secure, Leak-Resistant Lubrication for Precision Maintenance

Perfect for mechanics, tradies, farmers, fleet operators and DIY users across New Zealand who require a reliable, mess-free connection between grease guns and grease fittings for efficient machinery and vehicle maintenance.

Grease Coupler is designed to provide a tight, high-pressure seal between your grease gun and zerk fittings, ensuring lubricant is delivered directly into bearings, joints and moving components without leakage or disconnection. Built for workshop durability and consistent performance, this essential tool accessory simplifies lubrication tasks across automotive, agricultural, marine and industrial equipment.

Description – Grease Coupler

Regular lubrication is critical to extending the service life of vehicles, heavy machinery and mechanical components. However, inefficient grease delivery, slipping connections and messy leakage can reduce effectiveness and waste lubricant. Grease Coupler addresses these issues by providing a secure, pressure-resistant connection that improves accuracy and efficiency during greasing operations.

Secure Fitting Engagement

Grease Coupler is engineered to attach firmly to standard grease fittings. Its internal gripping mechanism clamps securely onto the zerk fitting, reducing accidental detachment during high-pressure operation.

A secure connection ensures that grease flows directly into the component rather than escaping around the fitting. This enhances lubrication effectiveness while reducing waste.

High-Pressure Sealing Performance

Many lubrication tasks require elevated grease gun pressure to force lubricant into tight or worn fittings. Grease Coupler is built to withstand these conditions while maintaining a strong seal.

The internal sealing components are precision-designed to minimise backflow and leakage. This allows grease to reach deep into bearings and pivot points where proper lubrication is essential.

Heavy-Duty Construction

Constructed from hardened steel or reinforced alloy, Grease Coupler is built to handle demanding workshop and field conditions. It resists wear, corrosion and deformation, even with frequent use.

This durability makes it suitable for automotive servicing, agricultural equipment maintenance, industrial machinery lubrication and construction equipment support.

Universal Compatibility

Grease Coupler is designed to fit most standard grease guns, including lever-action and pistol-grip models. Its threaded connection allows straightforward installation and removal without specialised tools.

This universal design ensures it can be integrated easily into existing toolkits across New Zealand workshops and job sites.

Reduced Mess & Cleaner Operation

Poor-quality couplers often result in grease spray or leakage, creating unnecessary cleanup work. Grease Coupler’s secure grip and sealing system help reduce spillage, keeping hands, tools and equipment cleaner during servicing.

Cleaner operation improves workflow efficiency and reduces lubricant waste.

Versatile Application

Grease Coupler is ideal for maintaining:

• Vehicle suspension components
  
• Chassis and steering systems
  
• Agricultural machinery joints
  
• Trailers and heavy transport equipment
  
• Industrial pivot points and bearings
  
• Marine equipment fittings
  

Its adaptability makes it a practical addition to professional and DIY maintenance kits.

Key Points

Secure Locking Grip:
Attaches firmly to grease fittings to prevent slipping or accidental disconnection.

High-Pressure Seal Integrity:
Maintains reliable performance under elevated grease gun pressures.

Durable Hardened Construction:
Resists wear, corrosion and deformation for long-term reliability.

Universal Grease Gun Compatibility:
Fits most standard grease guns for flexible workshop integration.

Benefits

Efficient Lubrication Delivery:
Ensures grease flows directly into fittings without waste or leakage.

Cleaner Work Environment:
Minimises mess, reducing cleanup time and improving safety.

Long-Term Durability:
Built for repeated use in demanding automotive and industrial settings.

Versatile Maintenance Tool:
Suitable for vehicles, farm equipment, machinery and heavy-duty applications.

Why Choose This Grease Coupler?

Grease Coupler stands out by delivering reliable performance through secure engagement and durable construction. Many low-grade couplers rely solely on friction, which can fail under pressure and lead to incomplete lubrication or messy discharge.

This coupler enhances sealing integrity and maintains a stable connection even during high-pressure greasing tasks. Its compatibility with most grease guns ensures convenient integration into existing toolkits without additional equipment purchases.

For New Zealand mechanics, tradies and equipment operators who demand consistent, efficient lubrication performance, Grease Coupler offers dependable functionality and workshop-ready durability.

Conclusion

Grease Coupler provides secure, high-pressure grease delivery for efficient vehicle and machinery maintenance. Its strong locking grip, durable build and universal compatibility make it an essential accessory for professional workshops and home garages alike.

Designed to reduce mess, improve lubrication accuracy and withstand demanding use, Grease Coupler supports long-term equipment performance across automotive, agricultural and industrial applications throughout New Zealand.

LockNLube® Grease Coupler – Secure, Efficient Lubrication Every Time

Perfect for mechanics, tradies, fleet operators, agricultural workers, and DIY maintenance enthusiasts across New Zealand seeking a dependable, leak-free grease coupling solution for consistent, efficient lubrication of grease fittings on vehicles, machinery, and equipment.

LockNLube® Grease Coupler is precision-engineered to provide a secure, high-pressure connection between grease guns and grease zerks, eliminating mess, minimising wasted lubricant, and ensuring that grease is smoothly delivered into the bearing, pin or bushing. Built for rugged workshop environments, heavy workloads, and frequent use, this coupler improves maintenance efficiency and extends the service life of moving parts in automotive, agricultural, marine, industrial, and domestic applications.

Description – LockNLube® Grease Coupler

Routine greasing is essential for maintaining the performance and longevity of moving mechanical parts. However, poor coupler engagement, leaking grease, and difficulty holding on to fittings can make the task messy and frustrating. LockNLube® Grease Coupler resolves these challenges by combining reliable grip strength, robust sealing, and ease of use into one high-performance tool accessory designed to simplify lubrication tasks.

Secure Lock-On Design

LockNLube® Grease Coupler features a secure locking mechanism that firmly attaches to the grease fitting or zerk. Once connected, it resists slipping and disengagement, even under high pressure. This “lock-on” engagement dramatically reduces the risk of incomplete lubrication or accidental disconnection, which can waste grease and require repeat application.

This reliable engagement helps ensure each greasing operation delivers lubricant precisely where it’s needed.

Heavy-Duty Construction

Constructed from high-grade hardened steel and precision-machined components, LockNLube® Grease Coupler is built to withstand rigorous workshop environments and repeated use. The rugged design resists deformation, corrosion, and wear, making it suitable for automotive workshops, farm settings, construction machinery maintenance, and heavy equipment servicing.

The durable construction extends tool life and reduces the need for frequent replacements.

High-Pressure Performance

LockNLube® Grease Coupler is engineered for high-pressure greasing applications. It maintains a firm seal under elevated grease gun pressures, ensuring consistent lubricant delivery deep into bearings and joints. This high-pressure capability is particularly beneficial when servicing larger machinery or older equipment with tighter fitting tolerances.

Compatible with Standard Grease Guns

This grease coupler is designed for compatibility with standard threaded and lever-action grease guns. Its universal interface allows quick attachment and detachment without tools, speeding up maintenance tasks and improving workflow efficiency.

Technicians, maintenance workers, and DIY users can use LockNLube® Grease Coupler interchangeably with most greasing equipment found in workshops or service vehicles.

Precision-Sealing Grease Delivery

Grease couplers that leak or drip complicate lubrication tasks and contaminate the work area. LockNLube® Grease Coupler’s precision seal minimises leakage, preventing messy grease trails and conserving lubricant.

The tight seal also reduces environmental contamination and helps keep tools, hands, and machinery cleaner.

Versatile Industrial & Vehicle Use

LockNLube® Grease Coupler is ideal for a wide range of lubrication tasks, including:

• Automotive chassis and suspension greasing
  
• Truck and trailer maintenance
  
• Agricultural machinery lubrication
  
• Industrial machinery servicing
  
• Marine equipment upkeep
  
• Construction and earth-moving machinery support
  

Its versatility makes it a valuable addition to any maintenance toolkit.

Key Points

Secure Lock-On Engagement:
Positive locking action prevents accidental disengagement and ensures proper coupler grip.

Heavy-Duty Hardened Construction:
Resists wear, deformation, and corrosion for extended service life.

High-Pressure Performance Capability:
Maintains strong seal and grease flow under elevated pressures.

Universal Grease Gun Compatibility:
Designed to fit most standard threaded and lever-action grease guns without tools.

Benefits

Efficient Grease Delivery:
Locks securely to fittings to deliver lubricant directly and consistently.

Reduced Mess & Waste:
Precision sealing minimises leakage, keeping hands and equipment cleaner.

Durable Workshop Reliability:
Built for frequent use in demanding environments without premature wear.

Versatile Maintenance Tool:
Suitable for automotive, agricultural, industrial, and heavy equipment greasing needs.

Why Choose This LockNLube® Grease Coupler?

LockNLube® Grease Coupler stands out by combining secure mechanical engagement with durable construction and high-pressure performance. Many generic couplers rely on friction grip alone, which can slip under pressure and result in incomplete lubrication or messy grease spillage.

With LockNLube®, the lock-on mechanism ensures a solid connection that won’t disengage mid-task. The hardened design resists deformation and wear, extending product life and reducing long-term maintenance tool costs. Its universal compatibility with most grease guns adds flexibility for technicians and DIYers alike.

For mechanics, maintenance professionals, and equipment operators across New Zealand who demand reliable, heavy-duty lubrication performance, LockNLube® Grease Coupler delivers precision, durability, and cleaner workflow results.

Conclusion

LockNLube® Grease Coupler offers secure, mess-reducing, high-pressure grease delivery that enhances the efficiency and quality of lubrication tasks. Its lock-on grip, hardened steel construction, and universal compatibility make it an essential tool accessory for workshop professionals, tradies, fleet operators, and anyone maintaining vehicles or machinery.

With improved seal performance and durable reliability, LockNLube® Grease Coupler supports consistent maintenance outcomes, prolongs service life of mechanical components, and simplifies greasing jobs on vehicles and equipment across New Zealand.