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Pump & Unloader Kits

Keep your pressure washer running like new with our essential range of Pump and Unloader Kits. These high-quality pressure washer parts are the key to maintaining performance and reliability for demanding industrial cleaning jobs. Whether you're looking for complete replacement kits to overhaul your machine or specific components to boost efficiency, this collection ensures your equipment stays durable and ready for any professional task. Built tough for Australian conditions, these kits will keep you on the job longer.

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Frequently Asked Questions

What are the key signs that I need to replace my pressure washer pump?

Spotting a failing pressure washer pump early can save you a world of headaches! If you start noticing a significant drop in pressure, pulsating water flow, or if your machine is making unusual grinding or knocking noises, it's a huge sign your pump might be on its last legs. Another big giveaway is finding water mixed in with the pump oil - that milky appearance is a classic symptom of worn-out seals. Excessive leaking from the pump body is also a clear indicator that it's time for a replacement.

Don't let a tired pump slow you down! Upgrading to a new high-quality pump can bring your machine back to life, often with better performance than it had originally. It's a fantastic way to protect your investment and ensure you have reliable power for every job.

What's the purpose of unloader kits and why are they so important?

Unloader kits are one of the most vital components for the safety and longevity of your pressure washer! Think of an unloader valve as the traffic cop for your water flow. When you release the trigger on your spray gun, the high-pressure water needs somewhere to go. The unloader valve instantly redirects this flow, looping it back to the pump's inlet at low pressure. This is called bypass mode, and it's a brilliant feature that prevents a dangerous build-up of pressure and heat within the system.

Without a properly functioning unloader, your pump, hose, and fittings would be under immense strain, leading to premature wear and tear or even catastrophic failure. It’s a non-negotiable safety device! It protects both the machine and you, the operator. Ensuring your unloader is in top shape is key to a reliable and safe operation every single time

How do I select the correct unloader kits for my pressure washer?

Selecting the right unloader kit is absolutely crucial for your pressure washer's safety and performance! It's simpler than it sounds - you just need to match the kit to your machine's specifications. The two most important numbers you need to know are your pump's maximum pressure (PSI) and its flow rate (LPM). Unloader kits are rated for specific pressure and flow windows, so you must choose one that comfortably handles your machine's output. Using an incorrectly rated unloader can lead to dangerous pressure spikes or poor performance in bypass mode.

You also need to consider the type of unloader. There are two main kinds: trapping and flow-actuated. Trapping unloaders are common and hold pressure in the hose when you release the trigger, giving you an instant blast of high pressure when you pull it again. Flow-actuated unloaders release the pressure in the line, which is a bit gentler on the system. For most general applications, a standard trapping unloader is perfect. If you're ever in doubt, we provide fantastic technical support and friendly customer service to ensure you get it right

What are some essential maintenance tips for my pressure washer pump and unloader kits?

Proper maintenance is the absolute key to getting a long, reliable life from your pressure washer pump and unloader kits. The number one rule is regular oil changes for your pump – it's just like the engine in your car! Check your pump’s manual for the recommended service intervals and always use the correct grade of pump oil. Periodically, you should also inspect and clean the pump's inlet water filter to prevent debris from causing internal damage.

For your unloader kit, the most important thing is to ensure it moves freely and isn't sticking. After use, flushing the system with clean water helps prevent chemical or debris build-up. Listen for any unusual sounds during operation, as this could indicate a problem. Taking these simple steps prevents premature wear on critical components like seals and valves, ensuring your machine runs smoothly and safely every time.

How does GO Industrial work?

At GO Industrial, we have a simple way to communicate how we work. Imagine buying a box. But instead of just any box, it’s a carefully engineered, manufactured, packed and presented box. Depending on your use of the box, one of our specialist teams will own and deliver the box to you.

We are all about Reliable Gear from Reliable People. From the Product Team that packs it correctly, to the Value-Add Team that customises it, and the Site Team that installs, commissions and maintains it — each part of our team works together to make sure your box is delivered right, every time.

Discover more About Us

Does GO Offer National Service & Support?

For more specialised needs, our in-store, workshop and site teams are here to deliver hands-on expertise. Whether it’s customising a Self Bunded Tank, assembling a fluid handling system, or guiding you through equipment options, we have got the know-how to help. Our Site team is available to ensure seamless installation, commissioning, and ongoing support, making sure everything works just as it should. However you connect with us, our goal is simple: to educate, inspire, and empower, delivering solutions that make your projects run smoothly with equipment you can trust - nationwide.

The Heart of Your Washer: Pump & Unloader Kits

Benefits and Applications of a Reliable Pump

The pump and unloader kit are truly the heart and brain of any pressure washer system! A high-quality pump is what generates the intense water pressure you need, while the unloader kit acts as a vital safety and control valve, redirecting water flow when you release the trigger. This combination is essential for performance and longevity. For professionals in construction, mining, or commercial cleaning, having a reliable pump means consistent power and less downtime on the job. A properly functioning unloader kit protects your pump from pressure spikes, extending its service life and preventing costly failures. Whether you're rebuilding an old unit or upgrading for more power, a new pump and unloader kit can breathe new life into your machine, making it a powerhouse for any industrial cleaning task.

Quality and Features of Our Unloader Kits

When it comes to high-pressure components, quality is everything! Our pump and unloader kits are sourced from leading manufacturers and built to withstand the extreme demands of daily industrial use. The pumps feature robust components like ceramic plungers and high-grade seals to handle high pressures and temperatures with incredible durability. The unloader kits are engineered for precision, allowing for accurate pressure adjustment and reliable bypass functionality. Key features include forged brass bodies for corrosion resistance and stainless steel internal components that prevent seizure. This commitment to superior engineering means you get consistent performance and a safer operating experience.

Expert Guidance on Your Pump & Unloader Kit

Choosing the right pump or unloader kit can feel a bit technical, but that's exactly why we're here! At GO Industrial, we absolutely love helping you find the perfect components for your pressure washer. Our team has a ton of hands-on experience and can guide you through matching the right pump based on your engine's horsepower, flow rate (LPM), and pressure (PSI) requirements. Got a question about installation or which unloader kit is compatible with your pump? Just ask! We provide fantastic technical support and friendly customer service to ensure you get it right. Our goal is to empower you with the best gear and knowledge. With GO Industrial, you're getting more than a part; you're getting a partner.

4.9/5 Stars

Thousands of Happy GOers

4.9/5 Stars

Thousands of Happy GOers

4.9/5 Stars

Based on 20,000+ Orders
Fluid Handling Equipment
They Deliver us a Complete Solution with Minimal Delays
— Jarrod Ridgway | DGS
Michael and the team at GO Ind are a great team to work with, DGS have a lot of custom installations and GO Ind work closely with us to ensure they deliver us a complete solution with minimal delays during the communication process, giving us the opportunity to deliver our projects on time and at a high standard of quality.Thank you GO Industrial Team.
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Spare parts
I Trust GO Industrial Will All of My Needs - Thank You
— Karolis Aidukonis
I have been a customer of GO INDUSTRIAL for many years, and I can confidently say that their service is top-notch. The team is knowledgeable, friendly, and always goes the extra mile to ensure customer satisfaction. I trust GO INDUSTRIAL with all my needs. Thank you
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Pressure Cleaning Equipment
I Needed a Trusted Source to Build My Customer Vehicle From the Ground Up
— Branko | EcoJet Pro
Starting a new venture is always a challenge. I knew I needed a trusted source to build my custom vehicle from the ground up. I chose GO Industrial and I have never looked back. After the new build was complete, the service and support have been second to none as well. This has helped drive the business forward. I could not recommend a greater team of people to work with!
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Line marking equipment
The After Sales Service is Amazing
— Matthew Schwerdtfeger
GO Industrial have given me an exceptionally high level of service. They have listened and understood my needs as a line marking business and have delivered with 5 star all the way. They have excellent communication skills and have helped to thoroughly educate me on all issues of maintenance and servicing of the Graco Line Laser machine. I purchased a Graco 3400 at a very fair and competitive price. The after sales service is amazing! They have offered their skills, knowledge and insight into the line marking industry to help my business grow. I am very grateful for their generosity and feel very assured that my business and equipment is being looked after by absolute professionals. I highly recommend this business for all line marking business needs.
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Spare Parts
An Absolutely Impeccable Process
— John Bromhead
An absolutely impeccable process, from ordering, to the super fast delivery, the the top quality of the product.In 23yrs in the building, I have never dealt with a better, more efficient and knowledgeable rep in Jacob. His knowledge and ease of transitions the order is second to none!
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