If you're driving a Nissan GU Patrol Series 4 and planning to hit the tracks, beach, or bush, upgrading your factory intake is one of the smartest moves you can make. The Radius Fabrications 4" Stainless Steel Snorkel is a proven performer for those chasing improved airflow, water protection, and rugged styling without compromising the body lines of the Patrol.
This blog outlines why this upgrade matters, how it’s built, what’s included in the kit, and why so many Aussie Patrol owners are choosing Radius for their 4WD setups.
Why a Snorkel Upgrade Makes Sense for GU Patrol Drivers
Factory air intake systems in most 4WDs, especially older models, weren’t designed for the kind of extreme conditions many Australian drivers face. Whether you’re navigating deep water crossings, fine desert dust, or coastal sand tracks, your engine is vulnerable to contaminants and water ingress.
The GU Patrol Series 4 stainless snorkel from Radius Fabrications elevates your air intake above common hazards, reducing the chance of engine damage while improving air volume to support more efficient combustion.
Built for the Harshest Australian Conditions
Radius Fabrications is known for designing and fabricating 4WD performance components specifically for Australian terrain and climate. Their 4-inch stainless snorkel for the GU Patrol Series 4 is no exception. Made from premium stainless steel, it is tough enough to handle corrugations, tree branches, salt air, and more, all while maintaining a sleek, factory-following fit.
Unlike plastic options that can fade, crack, or warp over time, this stainless snorkel is built to last and adds a rugged yet refined touch to your 4WD.
Explore the full specs and purchase online here:
https://radiusfabrications.com.au/products/gu-patrol-series-4-snorkel?_pos=4&_sid=9c7f52e53&_ss=r&variant=39295631589411
Key Features of the GU Patrol Series 4 Snorkel
4-Inch Diameter for Performance Gains
The increased diameter over the factory snorkel allows for greater airflow, which means improved performance, especially important for drivers running tuned or turbocharged setups.
Designed to Follow Factory Body Lines
Many snorkels can look bulky or stick out awkwardly. Radius Fabrications has CAD-designed this snorkel to hug the contours of your GU Patrol Series 4, delivering a cleaner, more refined appearance that blends with the vehicle’s design.
Fully Compatible with Multiple Airbox Options
This kit is designed to suit the standard airbox, Radius Fabrications' custom airboxes (with four models available), or aftermarket 3", 3.5", or 4" airboxes. Depending on your setup, the correct silicone joiner will be included. Be sure to specify during checkout.
DIY-Friendly Installation Kit
The snorkel kit includes everything needed for a home install:
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Mounting brackets
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Template for guard cutting
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Silicone joiners
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Hose clamps
Radius recommends using an air hacksaw for the most precise guard cut, ensuring a professional finish even if done in your garage.
Compatibility Notes
This snorkel was specifically fabricated for the TD42 and ZD30 engines found in GU Series 4 Patrols. If you're running a TB48, some modification or additional piping may be required, which Radius Fabrications does not supply. It's important to check your vehicle’s configuration before ordering.
Standard orders are shipped with silicone joiners suited for the factory airbox. If you’re running a custom airbox, confirm your setup before finalising the purchase.
Seam Details: What You Need to Know
Radius Fabrications does not class its snorkels as "seamless." While they are expertly welded and cleaned up, there will be a small but visible TIG weld at each bend. This is part of the manufacturing process and does not affect performance or durability, it simply reflects the hand-crafted nature of the product.
The Ideal Combo: Pair With a Radius Fabrications Airbox
To unlock the full potential of your GU Patrol Series 4’s intake system, pair this snorkel with a custom Radius Fabrications airbox. With four models to choose from, you can ensure your engine receives a steady supply of clean, cool air, even in the most challenging environments.
Find the full product here:
https://radiusfabrications.com.au/products/gu-patrol-series-4-snorkel?_pos=4&_sid=9c7f52e53&_ss=r&variant=39295631589411
Why Choose Radius Fabrications?
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Australian-Made Products
Every component is designed and built in Australia, for Australian drivers. -
Expert Engineering
Products are CAD-designed and performance-tested to ensure precision and durability. -
DIY-Friendly Kits
Each snorkel kit includes everything required for home installation, supported by accurate fitment and quality materials. -
Reputation in the 4WD Community
Trusted by off-roaders, tradies, and weekend warriors across the country.
Who Is This Snorkel For?
This snorkel is perfect for:
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4WD enthusiasts tackling water crossings, beaches, and dusty tracks
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Patrol owners looking for better performance and cleaner airflow
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Anyone upgrading from a factory snorkel to a stronger, better-looking option
If you’re building out your GU Patrol Series 4, this is one of the best upgrades you can make to protect your engine and improve overall airflow.
Buy direct from Radius here:
https://radiusfabrications.com.au/products/gu-patrol-series-4-snorkel?_pos=4&_sid=9c7f52e53&_ss=r&variant=39295631589411
The GU Patrol Series 4 Stainless Steel Snorkel from Radius Fabrications isn’t just an accessory, it’s an essential upgrade for serious 4WD drivers who demand performance, reliability, and Australian-made quality. Designed to fit perfectly, last long, and deliver results, this snorkel belongs on every well-built Patrol.
Ready to upgrade? Visit the official product page:
https://radiusfabrications.com.au/products/gu-patrol-series-4-snorkel?_pos=4&_sid=9c7f52e53&_ss=r&variant=39295631589411