Stone Guard for Tow Vehicle
Your tow vehicle's rear cop stones too. Here's how to protect the tailgate, bumper, and paintwork from stone damage while towing your caravan on gravel roads.
All Guides
Protection Checklist
Every area of your caravan covered.
Installation Guide
Step-by-step stone guard fitting instructions.
Gravel Road Prep
Prepare for unsealed roads and outback tracks.
Off-Road Caravan Guide
Prepare your off-road caravan for outback tracks.
Best Tow Vehicle
Choose a tow vehicle and protect it from stones.
Best Accessories
Essential accessories for Australian caravan travel.
Mud Flaps vs Stone Guards
Coverage, cost and convenience compared.
Window Protection
Protect caravan windows from stone damage.
Under Caravan Protection
Protect undercarriage, belly pan and chassis.
DIY Stone Guard
DIY approaches vs commercial stone guards.
Outback Trip Checklist
Everything you need for outback caravan travel.
Tow Vehicle Stone Guard
Protect your tow vehicle from rear stone damage.
Why Tow Vehicles Get Rear Stone Damage
Most caravan owners focus on protecting the caravan from stones — but the tow vehicle's rear takes a beating too. On gravel roads, stones thrown by the rear tyres don't just fly backward toward the caravan. They bounce off the road surface, the caravan's front panel, and the drawbar, ricocheting back toward the tow vehicle.
Common tow vehicle stone damage includes: paint chips on the rear bumper and tailgate, cracked or pitted tail light lenses, dented rear quarter panels, scratched rear window (on wagons and SUVs), and damage to rear-mounted accessories like bike racks and spare wheel covers.
A single gravel road trip can leave dozens of paint chips that expose bare metal to corrosion. Over a touring season, this adds up to significant paint damage that reduces the vehicle's resale value and requires professional respraying to fix.
Types of Tow Vehicle Stone Protection
Hitch-Mounted Mud Flaps (Rock Tamers)
Rock Tamers are the most popular hitch-mounted mud flap system in Australia. Two large rubber flaps mount to a steel frame that slides into the hitch receiver. They hang behind the rear wheels and catch stones before they can fly rearward. Adjustable width and height. Work with any trailer. We rated them 6.2/10 — good supplementary protection but not a replacement for a caravan stone guard.
Factory & Aftermarket Mud Flaps
Standard vehicle mud flaps (factory or aftermarket) provide basic stone containment behind each wheel. They're less effective than hitch-mounted systems because they only cover the immediate wheel area, not the full rear width. However, they're cheap ($40-$120 per set), permanent, and don't affect towing visibility or ground clearance.
Rear Paint Protection Film
Clear protective film (3M, XPEL) applied to the rear bumper, tailgate, and lower quarter panels. Absorbs stone chip impacts without damaging the paint underneath. Professional installation costs $300-$800 for the rear section. Self-healing films close minor scratches when warmed by the sun.
Horizontal Trapeze Guards (Stone Stomper)
The Stone Stompercreates a horizontal mesh curtain between the tow vehicle and caravan. This protects both the caravan's front AND the tow vehicle's rear by catching stones in the gap between the two. However, it requires connecting and disconnecting at every stop, which many owners find tedious.
How Tow Vehicle and Caravan Stone Guards Work Together
The gold standard for stone protection is a dual-layer system: vehicle-mounted mud flaps (like Rock Tamers) working in tandem with a caravan-mounted stone guard (like the D-Flector). Each system handles a different part of the stone damage equation:
Tow vehicle mud flapsreduce the volume of stones thrown rearward by the rear tyres. This protects the tow vehicle's rear paintwork AND reduces the intensity of stones reaching the caravan.
Caravan stone guard(A-frame mounted) catches any stones that get past the mud flaps, plus stones kicked up from the road surface, stones from other vehicles, and debris deflected from the sides. The D-Flector's engineered mesh directs stone energy downward, preventing ricochet back toward the tow vehicle.
Together, these two systems provide comprehensive protection for both vehicles. For serious outback touring, this dual approach is what we recommend. See our Mud Flaps vs Stone Guards comparison for a detailed breakdown.
Tow Vehicle Protection Options Compared
| Option | Protects | Cost | Setup |
|---|---|---|---|
| Rock Tamers (hitch-mounted) | Tow vehicle rear + reduces stones to caravan | $250-$400 | Semi-permanent (remove when not towing) |
| Factory mud flaps | Immediate wheel area only | $40-$120 | Permanent |
| Rear paint protection film | Paint and finish only (no structural protection) | $300-$800 | Permanent |
| Stone Stomper (trapeze) | Gap between vehicle and caravan | $350-$500 | Connect/disconnect every stop |
| D-Flector on caravan | Caravan front + reduces ricochet to vehicle | $350-$500 | Permanent (set and forget) |
Installation Tips for Tow Vehicle Protection
Check Hitch Receiver Size
Rock Tamers and similar hitch-mounted systems require a standard 50mm (2-inch) hitch receiver. Ensure your tow bar has a receiver tube — not all do.
Set Flap Height Correctly
Mud flaps should hang to approximately 50mm above the ground when the vehicle is unladen. Too high reduces effectiveness; too low drags on speed bumps and driveways.
Check Turning Clearance
Ensure hitch-mounted flaps don't contact the caravan's drawbar or jockey wheel during tight turns. Test at full steering lock before highway driving.
Pair With a Caravan Guard
For complete protection, pair tow vehicle mud flaps with a caravan-mounted stone guard like the D-Flector. This dual-layer approach covers both vehicles comprehensively.
Inspect Regularly
Check rubber flaps for tears, mounting bolts for tightness, and receiver pin for security before every towing trip. Replace worn flaps before they fail at speed.
For caravan stone guard fitting, see our Stone Guard Installation Guide.
Tow Vehicle Stone Guard FAQs
Why does my tow vehicle get stone damage at the rear?
When towing on gravel roads, stones thrown by the tow vehicle's rear tyres bounce off the road surface and the caravan's front, ricocheting back toward the tow vehicle's rear bumper, tailgate, and rear quarter panels. The caravan's A-frame also deflects stones sideways toward the vehicle's rear. Without protection, this causes paint chips, cracked tail lights, and dented panels.
What is the best stone protection for a tow vehicle?
For comprehensive tow vehicle protection, the best approach is a dual-layer system: fit a caravan-mounted stone guard like the D-Flector (9.3/10) to stop stones reaching the caravan AND vehicle-mounted rear mud flaps (like Rock Tamers) to reduce stones thrown rearward in the first place. The caravan guard protects the caravan while the mud flaps protect the tow vehicle's rear.
Are Rock Tamers worth it for caravan towing?
Rock Tamers are a popular hitch-mounted mud flap system that reduces rear stone throw. We rated them 6.2/10 — effective as supplementary protection but not a replacement for a caravan-mounted stone guard. They're particularly useful for protecting the tow vehicle's rear paintwork, tail lights, and bumper. They work with any trailer and stay on the vehicle year-round.
Do I need both a caravan stone guard and tow vehicle mud flaps?
For maximum protection, yes. A caravan stone guard (like the D-Flector) protects the caravan's front panel, A-frame, gas bottles, and undercarriage. Tow vehicle mud flaps (like Rock Tamers) protect the vehicle's rear from ricocheting stones. Together they provide a dual-layer system that covers both the caravan and vehicle. This is especially important for outback and gravel road touring.
Protect Both Your Vehicle and Caravan
Compare all stone protection options — from caravan-mounted guards to tow vehicle mud flaps — in our comprehensive scoring table.