Chassis Grenade (4WD Chassis Flusher)

Chassis Grenade is engineered to thoroughly flush mud, sand and salt from inside chassis rails using the power of your garden hose. Its unique 360° rotating design is driven entirely by water pressure, while strategically angled water jets deliver complete internal coverage as it spins. This ensures every surface inside the chassis is flushed more effectively than conventional straight-nozzle flushers, helping remove trapped contaminants that contribute to corrosion and premature rust. It's an essential maintenance tool for 4WDs, caravans, trailers and off-road vehicles.

1. Why is it better than a normal hose?
The rotating head sprays in all directions, cleaning the entire inside of the chassis rail.

2. Do I need a pressure washer?
No. It operates from standard garden hose pressure.

3. How long should I flush each chassis rail?
Around 1–2 minutes per access point, or until clean water runs out.

4. How often should I use it?
After beach driving, muddy tracks or river crossings.

5. Can it remove packed mud?
Yes. The rotating jets help break up and flush loose mud, sand and salt.

6. Will it fit every chassis?
It suits most vehicles with factory chassis access holes.

7. Can I flush cross members too?
Yes. Use any available access holes throughout the chassis.

8. Should I let the chassis dry afterwards?
Yes. Allow the chassis to drain completely before storage.