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Western Filters was established in 1981 and is an experienced hand when it comes to cleaning and selling air filters. We have great relationships within the industry and carry one of, if not the largest range of air filters in Sydney. You can purchase an individual air filter or buy a vehicle specific filter kit. We have air filters for all manner of machinery - farm and industrial, trucks, buses and passenger vehicles such as cars, vans, 4wds and the like. We also cater to race needs with high performance K&N air filters. Our friendly staff will strive to assist you in getting the optimum performance out of your vehicle as quickest and easiest as posible. Western filters for all your air filter needs !
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Donaldson Coolant Filters: Cooling systems are typically partial flow (by-pass) filters, with less than 10% of coolant flowing through the filter. We offer a range of Donaldson filters designed to work in a variety of operating environments and maintenance schedules. Use of the correct filter is important to maintain the proper balance to prevent over-concentration (silicate dropout) or under-concentration, which leads to corrosion, liner pitting and other system problems.
Donaldson coolant filters help keep your vehicle’s cooling system running smoothly. Most systems use partial-flow filters, so under 10% of the engine coolant passes through the filter at any time. Picking the right filter balances the engine coolant, preventing rust, liner pitting, and other damage.
Our range of Donaldson filters fits different use patterns and service plans. You can choose coolant filters for cars and trucks or specially built coolant filters for diesel engines. Each one fits standard housings for a fast, hassle-free replacement.
Coolant filters capture tiny particles that ride in the engine coolant as it moves heat to the radiator. Keeping particles out helps the coolant flow more freely and lets the engine reach its ideal temperature faster. A well-cooled engine can run more efficiently, which may improve fuel economy over time.
When you service your vehicle, remember the fuel filters. Clean fuel keeps injectors clear and ensures smooth combustion. Coolant filters and fuel filters form a strong defence against wear and tear inside your engine.
Donaldson filters meet strict quality standards and are engineered to provide superior dirt-holding capacity compared to many alternatives. That means you can stretch the time between services and spend more hours on the road. Heavy load carrying diesel engine coolant filters perform well under extreme heat or cold, resisting corrosion and breakdown.
Regular filter checks make life easier for mechanics. A clean cooling and fuel systems show leaks or other faults sooner, helping you plan minor repairs before they become major jobs. Small-part replacements cost far less than fixing a seized pump or distorted head.
Every driver and fleet manager should treat these filters as essential gear. Next time you book a service, ask for your coolant and fuel filters to be inspected or replaced. A small step now can prevent big headaches later and keep your engine running at its best.
HEPA Filters:
High Efficency Particular Arresting filters. HEPA Filters are able to trap as much as 99.9% of contaminates, depending on the filter's MERV (Minimum Efficiency Reporting Value) ratings. The highest MERV rating of 16 is the most efficient. The lowest MERV rating of 1-4 has the lowest efficiency rate. HEPA filters are composed of a mat of randomly arranged fibers.[16] The fibers are typically composed of polypropylene or fiberglass with diameters between 0.5 and 2.0 micrometers. Most of the time, these filters are composed of tangled bundles of fine fibers. These fibers create a narrow convoluted pathway through which air passes. When the largest particles are passing through this pathway, the bundles of fibers behave like a kitchen sieve which physically blocks the particles from passing through. Western Filters offers superior cabin HEPA air filters, including panel cabin & radial seal, to protect you from pollutants & allergens.

Replacement DPFs - Diesel Particulate Filters: If you haven't been keeping up with regular maintenance on you vehicle's DPF, it may be time to replace it. You can have it cleaned and tested with us and if there is a need, Western Filters stocks a wide range for most popular vehicles. If we don't have it in stock, we'll usually have a replacement DPF for you within a day or two. Our supplier stocks hundreds of different DPFs for popular and rare vehicles while can source quality DPFs for rarer vehicles and have them shipped to Australia. Ordering a DPF from Western Filters means you will receive a high-quality replacement filter as the company sources from high end manufacturers such as Delphi (Germany), Euromax (UK), Ernst (Germany), Bosal (Czech/Spain) and Ecore for the most popular vehicles including those from Europe, the UK, the US, Japan and South Korea. The difference in cost bewteen our brands and that of an OEM, could be as much as 70%.

Intank Fuel Filter Toolkit
Fuel Filter & Pre-Filter Fuel Primer Pumps:
Direction Plus's Primer is an essential accessory to prime your pre-filter or post-filter element when installing the kit on your vehicle. We stock NUK automobile parts including the NUK Diesel Fuel Primer Pumps to supply filtered fuel to car components for optimal engine performance. Order online now!
Western Filters provides a comprehensive range of hydraulic filter accessories, ensuring optimal performance for various hydraulic circuits. Our selection includes heads, filters, and related accessories designed for different pressure applications, such as suction and in-tank (low-pressure), return lines (medium-pressure), and pressure lines (high-pressure). Our inventory features high-quality Donaldson hydraulic filters, renowned for their reliability and efficiency in maintaining clean hydraulic systems. But what sets us apart is our complete Donaldson filter kits, a convenient solution that saves you time and effort for thorough maintenance and replacement needs. For fuel filtration, the Donaldson fuel filter stands out for its superior contamination control, ensuring the longevity and performance of your trucks and heavy-duty equipment. Furthermore, our range includes the robust Donaldson Duramax hydraulic filter, designed to handle high-pressure environments easily. These filters and accessories collectively support various hydraulic circuit filtration requirements, ensuring your systems operate smoothly and efficiently. For all your hydraulic filter accessory needs, count on Western Filters, where quality and performance meet.
Restriction indicators: go-no-go, lock-up styles, electric, in-field manometers, safety filter indicators | Aspirate (or scavenge) an intake system: • Strata Cap • Donaspin • Exhaust Ejectors • Air Stack Extension • Check Valve | Evacuate air cleaner dust: • Vacuator Valves • Quick Release Dust Cups • Dust Dumpa • Donaspin • STB Air System | Solve air intake water problems: • Air Ram Inlet Hood • In-line Moisture Skimmer • In-line Moisture Separator • Stack Top Moisture Eliminator | Pre-clean or protect air inlet from debris: Pre-cleaners, Strata Cap, TopSpin Pre-Cleaner, TopSpin HD Pre-Cleaner, Full-View Pre-Cleaner, In-line Separator, Donaspin • Air Ram Inlet Hood • Inlet Hoods | Connect intake components: • Rubber Elbows and Connectors • Clamps, Aluminum Tubing, Rubber and Silicone | Hump/Reducers, Charge Air Connectors | Mount or install an air cleaner: • Mounting Bands • Straight Pipe
Oil Caps are designed to cover the opening used to fill or top up the engine oil supply. Tridon Oil caps are manufactured using either metal, plastic or rubber design depending on the vehicle manufacturer’s specifications. Tridon offers an extensive range of oil caps including metal bayonet, plastic screw and rubber push in designs. The oil cap should be replaced if lost or damaged due to age, heat or neglect. An indication that a cap requires replacement would be the appearance of oil on the valve cover around the filler neck, indicating the cap can no longer seal the engine correctly.
Regular servicing your vehicle's automatic transmission and replacing the filter are your best strategies for maintaining efficient operation and trouble-free driving. At Western Filters, we stock a vast range of transmission filter kit brands, including Direction Plus TransChill, Cooper and DriveTech. If you want to ensure smoother shifting and extend the life of your car's transmission, then replacing your car’s automatic transmission filter is crucial. Fluids, such as oil, fuel, and transmission fluids, are vital for your vehicle's health, and keeping them clean is vital for long-term vehicle well-being. While changing the automatic transmission filter is less frequent than replacing an oil filter, it's still necessary as it can become clogged and less efficient over time.
It varies depending on the vehicle, but referring to your vehicle’s manual will guide you on how often to replace your car's transmission filter and which transmission fluid is recommended. Typically, car manufacturers advise replacing the filter every few years, typically between 50,000 and 100,000 kilometres, although this can differ. When replacing the transmission filter, it's also advisable to replace the transmission fluid.