PowerStop K5975 Z23 Rear Brake Kit 2012-2018 Ford Focus ST All Years

Vehicle Fitment

• 2012-2018 Ford Focus ST (2.0L EcoBoost I4 Turbo, FWD - All trims)

Fitment Notes

• Rear axle kit only - the Focus ST uses the same rear rotor across all model years regardless of front rotor configuration
• The 2013-2014 Focus ST (to 3/31/2014) uses 320mm front rotors; the 2014 (from 3/31/2014)-2018 Focus ST uses 335mm front rotors - this rear kit fits all years regardless of that front split
• For the matching front Z23 kit on early Focus ST (2013-2014 to 3/31/2014 with 320mm front), see PowerStop KC6479; for later ST (2014 from 3/31/2014-2018 with 335mm front), see KC7147
• Does NOT fit standard Focus SE, SEL, Titanium, or EV trims - those use a different rear rotor; see K5977 for the complete F&R kit for non-ST Focus trims with rear discs
• 4-lug bolt pattern (4x108mm)
• No special modifications required - direct bolt-on installation

Features

• Z23 Carbon-Fiber Ceramic pad compound delivers enhanced stopping power and lower dust versus factory pads - well suited to the Focus ST's spirited performance character
• Drilled & slotted vented rear rotors 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
• G3000 grade iron castings built to strict OE tolerances for crack resistance and durability
• Includes premium stainless-steel installation hardware and high-temp ceramic brake lubricant
• Bolt-on upgrade - no modifications needed

Specifications

• Kit Coverage: Rear Only
• Rear Rotor Outside Diameter: 10.67 in. (271 mm)
• Rotor Construction: Full Cast Iron - G3000
• Rotor Type: Vented
• Surface Type: Drilled & Slotted
• Rotor Finish: Silver Zinc Dichromate Plated
• Stud/Lug Hole Quantity: 4
• Bolt Circle Diameter: 4x108 mm
• Pad Compound: Z23 Carbon-Fiber Ceramic
• Pad Shims Included: Yes - Dual-Layer Rubberized

Included Components

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

Product Description

The PowerStop K5975 Z23 Evolution Sport Rear Brake Kit is the rear brake upgrade for the 2012-2018 Ford Focus ST - all model years. The Z23 Carbon-Fiber Ceramic pads deliver improved stopping power and significantly less dust than factory pads, while the drilled and slotted rear rotors improve heat management on a car whose 2.0L EcoBoost turbo character encourages spirited driving on back roads and occasional track days.

Note that non-ST Focus trims (SE, SEL, Titanium, EV) use a different rear rotor; this kit is specific to the ST. The rear rotor is consistent across all Focus ST model years regardless of the front rotor split (320mm vs. 335mm) that occurs mid-2014. G3000 iron rotors are precision-cast to OE tolerances for a direct bolt-on fit with no modifications required. For the Z23 version of this kit, see K5975. For the Z26 Street Warrior version, see K5975-26.