Description

ROCK OFF® Caravan Stone Guard Brush HITCH MOUNT KIT

The ROCK OFF Caravan Stone Guard Brush – Hitch Mount Kit is designed to reduce stone damage, road spray, and debris thrown up while towing.
Mounted directly to the tow hitch, the brush creates a flexible barrier that absorbs impact before stones reach your caravan, camper, or trailer.

Unlike rigid guards, the brush moves with the road and towing conditions. It’s tough, low-maintenance, and suitable for sealed and unsealed roads. Ideal for touring, off-road travel, and everyday towing.

Proudly Australian made using durable materials built for harsh conditions.

In Simple Terms

When you tow, your rear tyres throw stones straight at your caravan, or your towed vehicle if you travel by Motorhome.
The ROCK OFF brush sits in the firing line and stops most of that damage before it happens.

What’s Included in the Kit

Hitch mount Powder coated steel bracket
Heavy-duty stone guard brush assembly
Fixings and mounting hardware
Simple installation instructions

(Tow hitch not included)

How to Choose the Right ROCK OFF Kit – 5 Simple Steps

STEP 1 – Check your tow hitch size
Confirm your vehicle uses a standard 50mm tow hitch receiver.

STEP 2 – Measure available clearance
Ensure there is enough room on the tongue of your Hitch to hold the Hitch Mount receiver bracket. We have 2 sizes of receiver, 40mmm and 65mm.

STEP 3 – Measure your mounting height

Take your height measurements at a time when your towing vehicle and caravan or trailer is fully loaded — this will ensure any suspension systems you have in place are considered.

Measure from the ground to the mark where the top of your ROCK OFF Hitch Mount will be located. Deduct 100mm for road clearance and a further 50mm allowance for the backing of the brush and Mounting rail, total 150mm. This will provide the ideal bristle length option for your vehicle.

Remember that our drop down options shows the “bristle length”, so you will need to allow 50mm for the brush backing when you choose. If unsure, choose your ROCK OFF at the shorter measurement – you can always lower your fitting later. If your ROCK OFF bristle is too long, it is difficult to trim.

STEP 4 – Exhaust considerations

Keep exhaust flow and heat away from ROCK OFF. This product performs best when installed with plenty of distance away from your vehicle’s exhaust outlet. ROCK OFF is made from tough Polypropylene fibre, but it can be damaged by exhaust heat build-up.

Exhaust Shield and Extension Kits are available to allow free flow of your exhaust heat away from your towing vehicle. Alternatively, consider modifying your vehicle’s exhaust system to a side-exit style.

Recommended mounting positions:

For towing vehicles with a straight exhaust outlet: Consider mounting ROCK OFF underneath the exhaust pipe.

For towing vehicles with a downward-facing exhaust outlet: Consider our Exhaust Extension Kit. Particularly if your exhaust outlet is less than 450mm from your intended ROCK OFF Mounting.

STEP 5 – Other considerations

Aftermarket accessories (mudflaps, chains, Anderson plugs, auxiliary fittings etc) may need consideration when determining the mounting height and bristle length of your ROCK OFF.

Note – chain-attached vehicle mud flaps are not recommended as these can cause stones to bounce underneath your ROCK OFF and strike your caravan.

Check access to accessories and auxiliary fittings such as Anderson plugs and reversing lights. These accessories may have components or cables which may impact your mounting position. If possible, mount ROCK OFF underneath or above these fittings to ensure easy access.