Dynamite Friction 604-13021 Disc Brake Rotor - Rear

Rear Brake Rotor for Subaru Applications

The Dynamite Friction DFC GEOSPEC Coated Rotor 604-13021 is a rear disc brake rotor built for Subaru vehicles that use a solid rear rotor design. It combines OE-style dimensions with a coated finish to support consistent braking performance and corrosion resistance in everyday driving.

Compatible With 2008-2014 Subaru Impreza rear, 2010-2014 Subaru Legacy rear, 2010-2014 Subaru Outback rear, 2012-2014 Subaru WRX rear, 2011-2013 Subaru Forester rear, 2009 Subaru Forester rear, 2010 Subaru Forester rear with vehicle production date from 4/15/10, 2010 Subaru Forester rear with vehicle production date to 4/14/10, and 2013-2015 Subaru BRZ rear.

Key Features

• DFC GEOSPEC coated rotor finish for added surface protection
• Solid rear disc rotor design
• Outside diameter: 286 mm
• Nominal thickness: 10 mm
• Discard thickness: 8.5 mm
• Height: 63.6 mm
• 5-bolt hole pattern with 13 mm bolt hole diameter
• Inside diameter: 58 mm

Product Details

Part number 604-13021 is a Dynamite Friction rear brake rotor engineered for Subaru fitments that call for a solid rear disc. The DFC GEOSPEC Coated Rotor line focuses on a coated braking surface and OE-style sizing, making it a practical replacement for worn rear rotors on Subaru BRZ, Subaru Impreza, Subaru Legacy, Subaru Outback, Subaru WRX, and Subaru Forester models listed above. The rotor’s 286 mm outside diameter, 10 mm nominal thickness, and 63.6 mm height help ensure the correct physical match for the specified rear brake applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Rotor Can Address

• Rear brake pulsation from rotor wear or thickness variation
• Corrosion on the braking surface from age and exposure
• Reduced braking consistency caused by a worn solid rear rotor
• Noise related to uneven rotor surfaces
• Fitment issues when replacing a rear rotor with the wrong dimensions

Installation Notes and Tips

Verify rear axle fitment, rotor diameter, and solid rotor configuration before installation. Confirm the vehicle production date on 2010 Subaru Forester applications, since fitment is split between vehicles built before and after 4/15/10. Inspect pads, caliper hardware, and hub condition during rotor replacement to help maintain even braking contact. Part number 604-13021 should be matched to the exact rear application listed for your Subaru BRZ, Impreza, Legacy, Outback, WRX, or Forester.

Quality Assurance

The DFC GEOSPEC Coated Rotor line is built around coated, OE-style brake rotor construction for Subaru rear brake service. Part number 604-13021 is specified for the listed vehicle applications and dimensions to support accurate replacement selection.