PowerStop K138 Front & Rear Z23 Brake Kit 2003-2009 Toyota 4Runner FJ Cruiser

Vehicle Fitment

• 2003-2009 Toyota 4Runner (SR5, Sport, Limited - 4.0L V6 / 4.7L V8, RWD / 4WD - models with 319mm / 12.56 in. front rotors only)
• 2007-2009 Toyota FJ Cruiser (Base, 4.0L V6, 4WD / RWD - all trims)

Fitment Notes

• Front and rear axle kit - complete 4-wheel brake upgrade
• Fits 2003-2009 4Runner models with 319mm (12.56 in.) front rotors only - does NOT fit models with 338mm (13.31 in.) front rotors, which are typically found on V8 Sport Edition trims with 17-inch wheels and on the Lexus GX470
• To confirm your front rotor size: check the caliper casting code - 13WG / 13WL = 319mm (this kit fits); 13WH = 338mm (this kit does NOT fit)
• All 2003-2009 4Runner and FJ Cruiser trims use the same 312mm rear rotor - rear fitment is universal across both rotor variants
• 6-lug bolt pattern (6x139.7mm) - front and rear
• No special modifications required - direct bolt-on installation

Features

• Z23 Carbon-Fiber Ceramic pad compound delivers enhanced stopping power over traditional ceramic pads
• Drilled & slotted vented rotors at both axles maximize heat dissipation and clear gas and debris from the friction surface
• Low-dust formula validated through on-vehicle third-party testing - 30% less dust on average versus OE
• Dual-layer high-temp rubberized shims provide virtually silent braking
• Silver zinc dichromate plated rotors resist rust and corrosion
• Brake rotor, pad, and hardware engineered together as a matched system
• Includes premium stainless-steel installation hardware and high-temp ceramic brake lubricant
• Bolt-on upgrade - no modifications needed

Specifications

• Kit Coverage: Front & Rear (Complete 4-Wheel)
• Front Rotor Outside Diameter: 12.56 in. (319.00 mm)
• Rear Rotor Outside Diameter: 12.28 in. (312.00 mm)
• Rotor Construction: Full Cast Iron (Front: Vented / Rear: Vented)
• Surface Type: Drilled & Slotted
• Rotor Finish: Silver Zinc Dichromate Plated
• Stud/Lug Hole Quantity: 6
• Bolt Circle Diameter: 6x139.7 mm (5.50 in.)
• Pad Compound: Z23 Carbon-Fiber Ceramic
• Pad Shims Included: Yes - Dual-Layer Rubberized

Included Components

• 2x Front Drilled & Slotted Zinc-Plated Brake Rotors
• 2x Rear Drilled & Slotted Zinc-Plated Brake Rotors
• 1x Front Z23 Carbon-Fiber Ceramic Brake Pad Set (with rubberized shims)
• 1x Rear Z23 Carbon-Fiber Ceramic Brake Pad Set (with rubberized shims)
• 1x Stainless-Steel Installation Hardware Kit
• 1x High-Temperature Ceramic Brake Lubricant

Product Description

The PowerStop K138 Z23 Evolution Sport Front & Rear Brake Kit is a complete 4-wheel brake upgrade for the 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser - everything ships in one box. The drilled and slotted vented rotors at both axles reduce heat buildup during trail driving, towing, and demanding daily use, while the Z23 Carbon-Fiber Ceramic pads deliver improved stopping power and significantly less brake dust compared to factory pads.

Dual-layer rubberized shims provide near-silent braking, and the zinc-plated rotors resist corrosion over time. Everything installs as a direct bolt-on with no modifications required. Important: this kit is designed specifically for 4Runner models equipped with the standard 319mm front rotors (caliper codes 13WG / 13WL). 4Runner models with the larger 338mm front rotors - typically the V8 Sport Edition with 17-inch wheels - require a different kit. The FJ Cruiser (2007-2009) fits this kit across all trims.