BRAKE BOOSTER UPGRADE & CONVERSION KITS

About Hulk 4X4 Brake Booster & Conversion Kits

Our brake kits are built with premium componentry and vehicle-specific engineering to ensure real-world stopping performance:

Heavy-Duty Twin Diaphragm Boosters: Larger, higher-ratio boosters deliver noticeably more assist through the pedal, especially valuable once you've added bar work, a canopy, bigger tyres, or you're regularly towing near GVM.
Purpose-Built Drum-to-Disc Conversion Kits: Complete rear-end conversions replacing factory drum brakes with disc rotors, calipers, and brackets, engineered for consistent, fade-resistant braking on tough tracks and long descents.
Premium Componentry: Kevlar ceramic brake pads, slotted rotors, and stainless steel braided brake hoses are used throughout our range for better heat dissipation, a firmer pedal, and reduced brake fade.
Vehicle-Specific Engineering: Every kit is designed as a direct bolt-on for your exact model and series, no fabrication required, so fitment and factory ABS compatibility are accounted for from the start.

Find the Best Brake Upgrade for Your 4WD

Our collection ranges from simple bolt-on upgrades, like braided hose kits and ceramic pad sets, through to full front and rear brake overhauls and rear drum-to-disc conversions for vehicles that see serious touring and towing duty.

Product Highlights

Toyota HiLux & LandCruiser Brake Kits: Front and rear upgrade options including big brake kits, slotted rotors, and braided hose kits, built for HiLux N70/N80 and 70/80 Series LandCruiser owners running heavier setups.

Ford Ranger & Mazda BT-50 Brake Kits: From front disc brake upgrade kits to full rear drum-to-disc conversion kits, giving PX and BT-50 owners a genuine step up in stopping power for towing and touring.

Isuzu D-MAX & Holden RG Colorado Brake Kits: Big front brake upgrade kits and rear drum-to-disc conversion kits purpose-built for D-MAX and RG Colorado platforms.

Mitsubishi Triton & Nissan Navara Brake Kits: Front disc upgrade kits, rear drum brake upgrade kits, and full rear drum-to-disc conversion kits engineered for MN/MQ Triton and NP300 Navara.
Invest in a Hulk 4x4 Brake Upgrade

By choosing a Hulk 4x4 brake booster upgrade or disc conversion kit, you're investing in stopping power that matches the way you actually use your 4WD, loaded, towing, and off the black top. Every kit is backed by our 2 Year Warranty*. Browse our full range of underbody upgrades or explore touring and camping gear to get your rig fully set up for the next trip.

Brake Booster Upgrade & Conversion Kit FAQs

Do I need a brake booster upgrade if I've added bar work, a canopy, or bigger tyres?

Yes, in most cases. Extra weight and larger tyres increase the effort needed to stop your vehicle safely. A booster upgrade increases pedal assist so your braking effort matches your vehicle's new weight and rolling resistance, without needing to stand harder on the pedal.

What's included in a drum-to-disc conversion kit?

Our rear drum-to-disc conversion kits typically include disc rotors, calipers and mounting brackets, braided brake lines, and all associated hardware needed to convert your rear drum brakes to discs. Refer to each product listing for the exact kit contents for your vehicle."

Will these kits fit my vehicle without modification?

Yes. Every Hulk 4x4 brake kit is engineered as a direct bolt-on for the specific make, model, and series it's listed for, with no cutting or fabrication required. Always check the listed vehicle compatibility (including series and build date range) before ordering to confirm fitment.

What are the benefits of a brake booster upgrade or 4x4 brake upgrade kit?

A brake booster upgrade increases pedal assist so your braking effort matches your vehicle's added weight, whether that's bar work, a canopy, bigger tyres, or towing near GVM. You'll experience a firmer pedal, shorter stopping distances, and more consistent braking under load. Hulk 4x4 offers a range of 4x4 brake upgrade kits, including full rear drum-to-disc conversion kits, to suit your setup.

Will a brake booster upgrade or disc conversion kit affect my warranty?

It's always best to check with your vehicle manufacturer or local dealer to confirm that aftermarket brake components won't void your vehicle's warranty."

Can I install a brake booster upgrade or disc conversion kit myself?

While some components, like braided hose kits or brake pads, are suited to DIY installation, we generally recommend professional installation of brake booster upgrades and drum-to-disc conversion kits for guaranteed performance and to avoid any potential safety issues.

How much does a 4x4 brake upgrade kit cost?

The cost of a brake booster upgrade or conversion kit varies depending on the specific vehicle and kit you choose, and whether you opt for professional installation. Hulk 4x4 offers a range of brake upgrade kits to fit different budgets, starting at competitive prices.

What's the difference between a brake booster upgrade and a drum-to-disc conversion kit?

A brake booster upgrade replaces your existing booster with a larger, higher-ratio unit to increase pedal assist, using your factory brake setup. A drum-to-disc conversion kit goes further, replacing your rear drum brakes entirely with disc rotors, calipers and brackets for stronger, more fade-resistant stopping power, particularly under load.

When should I receive my brake upgrade kit?

An in-stock item usually ships within two business days. Depending on the item and where it is delivered to, it should take 2-7 business days to arrive."