Salt, red dirt, and mud don't just sit on top—they grind into your chassis, suspension, wheel arches, and brakes. Proper underbody cleaning prevents rust and keeps your rig adventure-ready. Our Pro Underbody System makes it fast and thorough, whether you're back from K'gari beaches or Cape York tracks.
Why underbody matters: 80% of 4WD corrosion starts here. Salt crystals from beach driving and abrasive clay from outback tracks eat metal fast if not removed properly.
Step-by-Step Underbody Clean
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Mix Underbody Cleaner & Degreaser: Dilute at 5:1 (heavy salt/mud) or 15:1 (light dust). This industrial-strength formula cuts through baked-on grime without damaging metal.
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Apply with Solvent-Resistant Pump Sprayer: Pour into our heavy-duty sprayer. Coat the entire underbody, suspension, wheel arches, tyres, and brakes. Dwell 2-5 minutes—watch it lift years of filth. Don't let it dry.
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Power rinse with Underbody Jet Sprayer Pro: Blast everything clean. Use our turbo nozzle in tight wheel arches, tyres, and suspension components for complete removal.
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Flush chassis with The Jett Chassis Flusher: Connect The Jett Chassis Flusher and fill with Premium Wash – Beach & Salt. Flush out trapped sand, salt, clay, and red dirt from inside the chassis rails and frame. Let dwell 3-4 minutes so our corrosion inhibitors can work, then rinse thoroughly.
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Neutralize the Underbody with Premium Wash foam: Attach our Soap Dispenser to your pressure washer water inlet, loaded with Premium Wash – Beach & Salt. Foam the underbody generously—this neutralizes cleaner residue and preps metal for protection.
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Dry completely, then protect: Fill the solvent-resistant pump sprayer with Underbody Protection Spray. Coat chassis, suspension, wheel arches, and underbody components. Avoid hot surfaces or exhaust. Let cure 24 hours. (Wear gloves and a mask)
Pro Tips for Best Results
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The Jett Chassis Flusher is critical: Gets inside frame rails where salt hides
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Work in shade—direct sun bakes chemicals onto metal
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Safety first: Wear gloves, eye protection—degreaser is strong stuff
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Frequency: Monthly for beach/track users; quarterly for highway rigs
What Makes This System Different
Ordinary hose + dish soap leaves salt crystals behind. Our Pro Underbody System:
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Degreases (removes oil/contaminants)
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Flushes internals (The Jett Chassis Flusher reaches hidden areas)
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Neutralizes (no chemical residue)
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Protects (long-term corrosion barrier)
Complete kit available—everything you need in one box. Australian-engineered for our conditions. 30-day money-back guarantee.
Quick FAQs:
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Why the chassis flusher? Salt hides inside frame rails—regular hoses can't reach
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Pressure washer required? Jet Sprayer Pro needs 1500+ PSI minimum
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Safe for brakes? Yes—formulas won't affect pads/rotors when rinsed
Tested tough: Moreton Island salt, Bourke red dirt, Cooloola clay.
