PowerStop KC5873A Z23 Front Brake Caliper Kit for 2015-24 Lexus GX460/4Runner

Vehicle Fitment

• 2016-2023 Lexus GX460
• 2015-2024 Toyota 4Runner

Fitment Notes

• Front application only; this kit does not include rear components
• GX460 and 4Runner share the same front brake platform but were introduced/updated in different model years - GX460 fitment begins 2016, 4Runner fitment begins 2015
• This is the Z23 Evolution Sport version (KC5873A); do not confuse with KC5873A-36, which is the Z36 Truck & Tow version of this kit

Features

• Z23 Evolution Sport Carbon-Fiber Ceramic brake pads provide stronger stopping power than OE pads with a low-dust formula
• Drilled and slotted rotor design improves heat dissipation and helps prevent brake fade
• Red powder-coated calipers protect against corrosion while adding a finished look behind the wheel
• Zinc-plated rotor surface resists rust and corrosion over time
• Chamfered and slotted pad design helps reduce noise and improve pad-to-rotor contact
• Complete bolt-on kit engineered so pads, rotors, and calipers work together as a matched system
• Every caliper is remanufactured, lubricated, and pressure tested prior to shipment
• Stainless-steel installation hardware included for a straightforward upgrade

Specifications

• Position: Front
• Rotor Style: Cross-drilled and slotted
• Rotor Finish: Zinc plated
• Caliper Finish: Red powder coat
• Brake Pad Friction Material: Z23 Carbon-Fiber Ceramic
• Warranty: 3 years / 36,000 miles

Included Components

• 2x Front Drilled & Slotted Brake Rotors
• 1x Front Carbon-Fiber Ceramic Brake Pad Set
• 2x Front Calipers (Red Powder Coated)
• 1x Stainless Steel Installation Hardware Kit

Product Description

The PowerStop KC5873A Z23 Evolution Sport kit is a front brake upgrade built for owners of the 2016-2023 Lexus GX460 and 2015-2024 Toyota 4Runner who want stronger daily-driver stopping power without stepping up to a heavy-duty towing setup. As a 1-Click kit, it bundles pads, rotors, and calipers together so the whole front brake system installs as one matched unit rather than requiring separate part sourcing.

Z23 Carbon-Fiber Ceramic pads are the core of the kit, offering improved bite over OE pads while keeping dust and noise low for everyday driving. These pads are paired with cross-drilled and slotted rotors that improve heat dissipation and help clear water and debris from the braking surface, which is particularly useful for 4Runner and GX460 owners who take their SUVs off-road or drive in wet conditions. Red powder-coated calipers round out the kit, adding corrosion resistance along with a visible upgrade behind the factory wheels.

Because this is the Z23 Evolution Sport line rather than the heavier-duty Z36 Truck & Tow version, it's best suited to owners looking for a daily-driving performance upgrade rather than dedicated towing or hauling use. Installation follows the stock front brake layout with all necessary hardware included, and no modification is required. Double-check that you're ordering the caliper-inclusive KC5873A rather than the pad-and-rotor-only K5873, depending on whether your stock calipers need replacement.