Website under construction. Not all products are available online yet.

khardware logo
MAG 1 Cooling System Stop Leak
MAG 1 Cooling System Stop Leak

MAG 1 Cooling System Stop Leak

MAG1

A$8.50

This product is not available for purchase online.

Features

feature icon 1
feature icon 2

Overview

MAG 1 Cooling System Stop Leak is a concentrated additive that seals leaks in radiators, hoses, gaskets, and heater cores without clogging the system. Poured directly into the cooling reservoir, it forms a durable seal to prevent coolant loss, restoring pressure and efficiency—reliable gear that patches up overheating woes without a full flush or tow.

Why You’ll Love It

  • Quickly plugs small leaks to stop coolant drips and top-ups
  • Safe for all coolant types, including extended-life formulas
  • One-bottle treatment works on cars, trucks, and heavy machinery

Built for Real Work

Formulated with premium sealants that swell and repair without residue or blockages, this additive handles high-heat and pressure like a pro. It's tough on pinholes and cracks but gentle on pumps and sensors—proper kit for the tradie's overheating ute mid-job, straightforward enough for the driveway fix, just pour in, run the engine, and watch it hold.

Perfect For

  • Tradies keeping fleet vehicles running on remote sites
  • DIYers patching radiator issues before bigger repairs

Recommended Products

Nulon Engine Stop Smoke 500ml

Nulon Engine Stop Smoke 500ml

A$23.50

Overview Nulon Engine Stop Smoke 500ml is a premium one-shot treatment that quiets blue exhaust smoke by rejuvenating hardened valve stem seals and reducing oil burn in engines. Poured directly into the fuel tank, it conditions seals and cleans combustion chambers for cleaner running—reliable kit that tames smoky engines without the full rebuild hassle. Why You’ll Love It Quickly cuts blue smoke and oil consumption after one tank Restores valve seals for smoother, quieter engine performance Simple pour-in use treats up to 80L of fuel or oil Built for Real Work Formulated with advanced seal softeners and detergents, this Aussie-made treatment targets root causes like worn seals and ring deposits, safe for petrol and diesel engines. It works through the fuel system to deliver results without disassembly—tough on smoke but gentle on internals, proper gear for the tradie's old workhorse or the classic car revival. Perfect For Tradies reviving fleet vehicles or high-mileage utes DIYers fixing smoky exhausts in cars, trucks, or vintage motors

la-co heat barrier spray

LA-CO Heat Barrier Spray Cool Gel

A$24.50

Protect surfaces during high-heat tasks with LA-CO Cool Gel Heat Barrier Spray 473ml, a premium heat barrier spray designed for plumbers, HVAC technicians, and welders. Its unique, no-drip gel formula sticks to surfaces, safeguarding lead-free valves, rubber seals, and painted finishes from heat damage during soldering, brazing, or welding. Non-toxic, odourless, and non-staining, it evaporates within 48 hours, eliminating clean-up. Easier to use than heat blankets, this 473ml trigger spray offers reliable protection for components in plumbing, HVAC, and welding projects. Usage instructions ensure safe application. Key Features: No-drip heat barrier spray for precise application. Non-toxic, odourless, and non-staining; safe for skin. Evaporates within 48 hours, no clean-up required. Protects surfaces during soldering, brazing, and welding.

Master Blue RTV Silicone Gasket Maker 85g

Master Blue RTV Silicone Gasket Maker 85g

A$13.50

Create reliable seals with the Master Blue RTV Silicone Gasket Maker 85g, a high-performance gasket maker designed for automotive repairers, mechanics, and DIY enthusiasts. This sensor-safe, low-odour blue RTV silicone cures to a tough, flexible seal, ideal for oil pans, valve covers, thermostat housings, water pumps, and timing gear covers. With a temperature range of -62°C to 316°C, it resists oil, water, antifreeze, and vibration, ensuring leak-proof gaskets for engines and drivetrains. Suitable for sensor-equipped vehicles, it’s WaterMark approved. Usage instructions ensure easy application. Key Features: Sensor-safe gasket maker with blue RTV silicone for automotive use. Temperature range of -62°C to 316°C, resists oil, water, and antifreeze. Cures to a flexible, waterproof seal for reliable gaskets. Ideal for oil pans, valve covers, and water pumps.

Prime Guard Premium 50% Ether Starting Fluid 311g

A$14.50

Overview The Prime Guard Premium 50% Ether Starting Fluid 311g is a fast-acting aerosol that gets gas and diesel engines firing in tough conditions. With a balanced 50% ether blend and added lubricants, it cuts through cold starts and stubborn cranks while easing battery strain—solid gear that revs up mowers, outboards, or utes when the weather turns nasty. Why You’ll Love It 50% ether formula ignites quickly for reliable cold-weather starts Reduces battery drain by easing starter motor effort Includes upper cylinder lubricant to protect during initial firing Built for Real Work This premium aerosol performs down to -65°F with a rust-inhibiting blend that safeguards carbs and injectors without gumming up. The 311g can sprays precisely for targeted bursts, handling everything from fractional horsepower tools to heavy diesels—tough enough for the tradie's freezing site mornings, straightforward enough for the shed revival, no fuss, just fire. Perfect For Tradies kick-starting engines on job sites or in winter hauls DIYers firing up lawnmowers, chainsaws, or boats after storage

Motortech Degreaser 400g Aerosol

Motortech Degreaser 400g Aerosol

A$4.90

Overview Motortech Degreaser 400g Aerosol is a powerful, non-chlorinated spray that cuts through grease, oil, and grime on engines, tools, and machinery. Its fast-evaporating formula leaves no residue, making it ideal for quick clean-ups in workshops or garages—reliable kit that tackles tough jobs without the harsh fumes or scrubbing. Why You’ll Love It Breaks down heavy grease and oil in seconds for effortless results Non-chlorinated and low-odour for safer use in enclosed spaces Quick-drying action means no wipe-down or rinse needed Built for Real Work This Aussie-made degreaser features a solvent blend that's aggressive on contaminants but safe on metals, plastics, and rubber seals. The 400g can sprays precisely for targeted cleaning, handling everything from engine bays to workshop benches—tough enough for the tradie's daily grind, straightforward enough for the home mechanic. Perfect For Tradies maintaining tools, engines, or job site equipment DIYers prepping vehicles or machinery for repairs or storage

DIGGERS 1L Acetone Cleaning Solvent

A$26.50

Power through tough cleaning tasks with DIGGERS 1L Acetone Cleaning Solvent, a versatile solution for DIY enthusiasts, contractors, and automotive professionals. This fast-drying acetone cleaning solvent effortlessly removes adhesives, resins, waxes, and even superglue from surfaces like wood, metal, and most plastics. Perfect for prepping PVC pipes before gluing or cleaning fibreglass tools, it’s also a favourite for beauty tasks like removing nail polish or sanitizing tools. Its water-miscible formula and high evaporation rate ensure quick, residue-free results. The 1L bottle comes with a safety cap and clear instructions for safe use. Key Features: Fast-drying acetone cleaning solvent for efficient cleanup. Removes adhesives, resins, waxes, and superglue with ease. Ideal for cleaning PVC pipes and fibreglass tools. Water-miscible for versatile applications. How to Use: Test on a small area to ensure surface compatibility. Apply with a clean rag or cotton bud to the target area. Wipe or scrub to remove adhesives, residues, or nail polish. For PVC pipes, soak a rag and clean surfaces before gluing. Store in a cool, dry place away from flames.

Glendale Distilled Water 1L

Glendale Distilled Water 1L

A$4.90

Overview Glendale Distilled Water 1L is high-purity water produced through a vacuum MVR distillation process, ensuring less than 5ppm total dissolved solids for spotless performance in appliances and systems. Chlorine-free and safe for humans, it's the go-to for topping up batteries, filling irons, or rinsing without residue—clean, reliable kit that keeps your gear running smooth and scale-free. Why You’ll Love It Ultra-pure formula prevents mineral buildup in humidifiers and irons Chlorine-free for gentle hair rinsing or medical sterilisation Compact 1L bottle for easy storage and quick access Built for Real Work Made via energy-efficient mechanical vapour recompression distillation, this water locks out impurities to extend battery life in cars and trucks or ensure autoclaves run clean. It's tough enough for the tradie's ute top-up on site, straightforward enough for the home vaporiser fill—no minerals, no mess, just pure H2O that gets the job done right. Perfect For Tradies maintaining vehicle batteries or cleaning tools on the go DIYers using in steam irons, sleep apnea machines, or household rinses

Nulon Power Steering Fluid 500ml

Nulon Power Steering Fluid 500ml

A$18.50

Overview Nulon Power Steering Fluid 500ml is a high-performance synthetic blend designed to lubricate and protect power steering systems in most vehicles. It reduces wear, quiets noisy pumps, and prevents leaks by conditioning seals, making it a straightforward top-up for smoother steering—reliable gear that keeps your rig responsive without the full flush. Why You’ll Love It Quiets steering whine and improves response with anti-foam properties Compatible with most ATF-spec power steering units for easy swaps 500ml bottle tops up systems quickly without waste Built for Real Work Formulated with premium additives for oxidation resistance and thermal stability, this Aussie-made fluid handles high-pressure pumps and extreme temps while sealing out moisture. It's tough on contaminants but gentle on components, extending service life—proper kit for the tradie's daily driver or the weekend hauler, just pour in and steer on. Perfect For Tradies maintaining utes, vans, or fleet vehicles DIYers fixing stiff steering or topping up hydraulic systems

Nulon Octane Boost & Clean 300ml

Nulon Octane Boost & Clean 300ml

A$22.50

Overview Nulon Octane Boost & Clean 300ml is a dual-action fuel additive that raises octane levels while cleaning injectors and combustion chambers for better engine performance. Poured straight into the tank, it combats low-octane knock and buildup, delivering smoother power and efficiency—reliable kit that tunes up your petrol engine without a trip to the mechanic. Why You’ll Love It Increases octane rating to prevent knocking and boost horsepower Cleans fuel system for improved throttle response and fuel economy One-shot treatment covers up to 120L of petrol for full tank coverage Built for Real Work Blended with high-performance detergents and octane enhancers, this Aussie-made additive tackles carbon deposits and varnish while stabilising fuel for high-compression engines. Safe for modern EFI and carburetted setups, it's tough on low-quality fuel effects but gentle on components—proper gear for the tradie's high-rev ute or the performance car enthusiast, just add and accelerate. Perfect For Tradies powering through with fleet vehicles or turbo diesels DIYers enhancing cars, bikes, or mowers for peak performance

Nulon Extreme Performance Super DOT 4 Brake Fluid 500ml

Nulon Extreme Performance Super DOT 4 Brake Fluid 500ml

A$15.50

Overview Nulon Extreme Performance Super DOT 4 Brake Fluid 500ml is a premium, high-boiling-point hydraulic fluid for demanding braking systems in cars, utes, and race vehicles. Meeting FMVSS 116 DOT 4 specs with a dry boiling point over 260°C, it prevents vapour lock and fade under heat—reliable gear that keeps brakes responsive when it counts, without the fade. Why You’ll Love It High dry boiling point resists fade during hard stops or track use Low viscosity ensures smooth ABS and ESP operation in cold starts 500ml bottle flushes small systems or tops up without excess Built for Real Work Formulated with advanced glycol-ether base and corrosion inhibitors, this Aussie-made fluid protects calipers, lines, and master cylinders from moisture and wear. It's fully miscible with other DOT 4 fluids, making swaps easy—tough enough for the tradie's loaded van or the weekend racer, straightforward enough for a quick bleed in the shed. Perfect For Tradies maintaining brakes on work vehicles or trailers DIYers upgrading to high-performance fluid for safer stops

Here's What Our Customers Are Saying

Articles

Ecommerce Store Update: Still in Progress!

Ecommerce Store Update: Still in Progress!

We’re still fine-tuning the online inventory, so some products may not yet be listed.

Learn more
Exciting Upgrade to Our Ecommerce Store!

Exciting Upgrade to Our Ecommerce Store!

Our ecommerce store just got a major upgrade with a fresh look and smoother navigation! While we’re updating our online inventory, some products may not yet be listed but are available in-store.

Learn more

Stay in the Know - No Spam, No BS.

We know you're here for great products, not junk emails. Sign up to get exclusive access to product sales, special offers, and new arrivals - all delivered straight to your inbox with zero fluff. We promise to only send you the good stuff, when it matters.

Exclusive Deals

Be the first to hear about flash sales and discounts on your favorite hardware, tools, and garden supplies.

New Products

Stay ahead of the curve with updates on the latest arrivals across our extensive range.

Project Tips

Get expert advice, DIY hacks, and how-tos that help you tackle every task with confidence.

No spam. No BS. Just the best from Khardware.
Sign up today and start saving!

newsletter