PowerStop
PowerStop - Front Coated Hat and Edge Rotor

PowerStop AR8170SCR Disc Brake Rotor - Front

Brand PowerStop AR8170SCR
Position Front
Discard Thickness 0.91
Discard Thickness 23.00
Nominal Thickness 0.98
Nominal Thickness 25.00
Balancing Type Mill balanced
Construction Full cast
Rust Resistant Coating Yes
Overall Height 1.77
Overall Height 45.00
Outside Diameter 10.94
Outside Diameter 278.00
ABS Tone Ring Included No
Surface Type Smooth
Solid Or Vented Type Rotor Vented
Mounting Bolt Hole Circle Diameter 108.00
Mounting Bolt Hole Circle Diameter 4.25
Stud/Lug Hole Quantity 4
Product line PowerStop - Front Coated Hat and Edge Rotor
Fits Ford · 3 vehicles

OE-style replacement. Direct bolt-on design matches original equipment specifications for straightforward service.

Corrosion-resistant coating. Silver epoxy protects exposed areas and helps preserve a clean wheel-well appearance.

Vented full cast rotor. Smooth surface and mill-balanced construction support consistent braking performance.

Cross-references 4S4Z 1125-A, 4S4Z 1125-AA and 7S4Z 1125-A for the same application. See all 4.

$85.29Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $85.29
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

The PowerStop AR8170SCR is a coated disc brake rotor built as a direct bolt-on replacement for the original equipment part. It is made for drivers who want OE-style fitment, corrosion protection, and a clean appearance behind alloy wheels.

Compatible with the Ford Focus front brake application for 2005-2007 models, this rotor matches original equipment performance and specifications, including weight and vane count. The AR8170SCR is a practical choice for restoring braking performance while maintaining a factory-style fit.

Key Features

  • Part number AR8170SCR
  • Part of the PowerStop coated hat and edge rotor line
  • Silver epoxy coating on corrosion-prone areas
  • Vented, full cast construction with a smooth surface
  • Mill balanced for consistent rotor quality
  • Direct bolt-on replacement with OE-style specifications

Detailed Description

PowerStop AR8170SCR is engineered as a front brake rotor for the Ford Focus, 2005-2007. The vented design helps support heat management during braking, while the full cast construction and smooth surface provide a factory-style replacement profile. The coated hat, outer edge, and vanes are treated with a silver epoxy finish to resist corrosion and help preserve appearance in wheel openings where the rotor is visible.

This rotor is designed to match original equipment dimensions and performance targets, including overall size, thickness, and vane count. If you are replacing worn or rusted front rotors on a Ford Focus, AR8170SCR offers a straightforward OE-style solution. This part cross-references Ford OE numbers (e.g., 4S4Z 1125-A, 7S6Z1125A) for the same application.

What It Helps Address

  • Brake pulsation caused by worn rotor surfaces
  • Visible rust on the hat, edge, or internal vanes
  • Reduced braking consistency from rotor wear
  • Factory-style replacement needs for a Ford Focus front brake service
  • Rotor fitment concerns when matching OE dimensions

Installation Notes and Tips

Fits 2005-2007 Ford Focus, front. Verify rotor dimensions, bolt circle, and hub fitment before installation. Clean the hub mounting surface thoroughly to help prevent runout-related issues and ensure proper seating. The AR8170SCR is a direct replacement rotor, so installation follows standard brake service procedures for the vehicle.

Quality Assurance

PowerStop designs this rotor to match original equipment performance and specifications, including weight and vane count, for guaranteed fitment. The coated surfaces add corrosion resistance in exposed areas, supporting long-term appearance and serviceability.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007FordFocusFrontPowerStop - Front Coated Hat and Edge Rotor
2006FordFocusFrontPowerStop - Front Coated Hat and Edge Rotor
2005FordFocusFrontPowerStop - Front Coated Hat and Edge Rotor
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
4S4Z 1125-A4S4Z 1125-AA7S4Z 1125-A7S6Z1125A