PowerStop AR84008EVC Disc Brake Rotor - Front
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PowerStop
 Power Stop - Front Genuine Geomet Coated Rotor

PowerStop AR84008EVC Disc Brake Rotor - Front

Brand PowerStop AR84008EVC
Position Front
Discard Thickness 1.0
Discard Thickness 25.5
Nominal Thickness 1.1
Nominal Thickness 28.0
Construction Full cast
Rust Resistant Coating Yes
Overall Height 3.8
Overall Height 97.3
Outside Diameter 12.1
Outside Diameter 306.5
Grade Type Standard replacement
Solid Or Vented Type Rotor Vented
Mounting Bolt Hole Circle Diameter 3.3
Mounting Bolt Hole Circle Diameter 82.6
Stud/Lug Hole Quantity 8
Product line Power Stop - Front Genuine Geomet Coated Rotor
Fits Workhorse and Workhorse Custom Chassis · 13 vehicles

OE-style replacement. Direct bolt-on rotor built to factory specifications for fit and performance.

GEOMET coating. Rust preventative finish helps protect the rotor without affecting braking performance.

Vented construction. Full cast design supports consistent heat management in service.

$112.95Free 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 — free returns if it doesn't
Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $112.95
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Disc Brake Rotor options

Coated front brake rotor

Power Stop Evolution Coated rotor AR84008EVC is a direct bolt-on replacement for factory equipment. It is built to original equipment specifications for fit, weight, vane count, and performance, with a Genuine GEOMET 360 coating that helps protect against rust and corrosion without affecting braking performance.

Key features

  • Direct bolt-on replacement for factory-style service
  • Genuine GEOMET rust preventative coating
  • Full cast construction with vented design
  • Standard replacement grade for everyday braking service
  • Built to OE specifications for fitment and performance

Detailed description

The AR84008EVC is a vented disc brake rotor from Power Stop’s Evolution Coated line, engineered for drivers who want an OE-style replacement with corrosion protection. Its full cast construction, 12.1-inch outside diameter, and 8-lug mounting pattern align with the listed application requirements. This rotor is a fitment match for Workhorse W42 front brake service, including 2006-2011 Workhorse W42 front and 2006-2012 Workhorse Custom Chassis W42 front applications. The AR84008EVC is also referenced as a direct replacement for the same application under Monroe Shocks & Struts part numbers 172286 and 182286.

Common issues this rotor addresses

  • Surface rust on a brake rotor exposed to road moisture and salt
  • Brake pulsation caused by worn or out-of-spec rotor surfaces
  • Reduced braking consistency from a rotor that no longer meets service thickness
  • Fitment problems when replacing a factory-style vented rotor

Installation notes and tips

Verify rotor diameter, bolt circle, and hat profile against the existing part before installation. Confirm the vehicle application by year, make, model, and front position, especially on Workhorse W42 and Workhorse Custom Chassis W42 platforms. Clean the hub mounting surface thoroughly and inspect related brake components before returning the vehicle to service.

Quality assurance

Power Stop manufactures this rotor to original equipment specifications for fitment and performance. The Genuine GEOMET coating is applied to resist rust and corrosion while preserving braking function.

Related reading

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2011WorkhorseW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2011Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2010WorkhorseW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2010Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2009WorkhorseW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2009Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2008WorkhorseW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2008Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2007WorkhorseW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2007Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2006WorkhorseW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor
2006Workhorse Custom ChassisW42Front8 Hole Rotor, 307mm Dia, Hat Shaped Rotor; Power Stop - Front Genuine Geomet Coated Rotor