HomeBrake > Drums and RotorsDuraGo BR55085-01 Disc Brake Rotor - Rear
Part #: BR55085-01

DuraGo BR55085-01 Disc Brake Rotor - Rear

Rear
21 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Chevrolet, and Pontiac, Allure, Grand Prix, Impala, Impala Limited, and LaCrosse
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Overview of DuraGo BR55085-01 Disc Brake Rotor

The DuraGo BR55085-01 is a solid disc brake rotor designed for reliable braking performance. Engineered with cast iron construction and a rust-resistant coating, this rotor is compatible with select Buick, Chevrolet, and Pontiac models, including the Allure, Grand Prix, Impala, Impala Limited, and LaCrosse.

  • Material: Durable cast iron for consistent heat dissipation
  • Nominal thickness: 0.55 inches (14 mm) ensuring structural integrity
  • Discard thickness: 0.49 inches (12.5 mm) indicating service limit
  • Overall height: 1.44 inches (36.7 mm) for proper fitment
  • Outside diameter: 10.63 inches (270 mm) matching OEM specifications
  • Mounting bolt hole quantity: 5 with a 4.65 inch (118 mm) bolt circle diameter
  • Solid rotor design without slots or cross-drilling
  • Non-directional brake surface for versatile installation
  • Rust-resistant coating to reduce corrosion over time

Detailed Product Description

The DuraGo BR55085-01 disc brake rotor is constructed from full cast iron, providing a balance of strength and heat management essential for braking systems. Its solid rotor design is conventional, without slots or cross-drilled holes, which suits vehicles that require a standard rotor for everyday driving conditions. The rotor features a rust-resistant coating to help extend its service life by minimizing surface corrosion. With a 5-bolt mounting pattern and precise dimensions, this rotor is engineered to fit specific Buick, Chevrolet, and Pontiac models such as the Buick Allure and LaCrosse, Chevrolet Impala and Impala Limited, and Pontiac Grand Prix.

Compatible Vehicles and Applications

  • Buick Allure and LaCrosse
  • Chevrolet Impala and Impala Limited
  • Pontiac Grand Prix
  • Replacement for worn or warped rotors
  • Addressing brake pulsation or noise issues
  • Restoring braking performance after rotor damage

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is within the nominal range and above the discard thickness to maintain safety. Use proper torque specifications for the 5 mounting bolts to avoid rotor warping. This rotor does not include an ABS tone ring, so confirm compatibility with your vehicle’s ABS system.

Quality Assurance and Warranty

DuraGo rotors are manufactured to meet or exceed OEM standards for fit and function. The BR55085-01 rotor undergoes quality control checks to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, DuraGo products typically come with a limited warranty against defects in materials and workmanship.

BrandDuraGo
Part NumberBR55085-01
MaterialCast iron
Discard Thickness0.49
Discard Thickness12.5
Nominal Thickness0.55
Nominal Thickness14
ConstructionFull cast
Rust Resistant CoatingYes
Overall Height1.44
Overall Height36.7
Outside Diameter10.63
Outside Diameter270
Mounting Bolt Hole Quantity5
ABS Tone Ring IncludedNo
Solid Or Vented Type RotorSolid
Center Hole Diameter2.78
Center Hole Diameter70.7
Mounting Bolt Hole Circle Diameter118
Mounting Bolt Hole Circle Diameter4.65
Mounting Bolt Hole Diameter0.65
Mounting Bolt Hole Diameter16.5
Directional or Non-Directional Brake SurfaceNon-directional
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
SlottedNo

This part fits 21 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2016ChevroletImpala LimitedRearCoated Hat and Edge for Rust Resistance
2015ChevroletImpala LimitedRearCoated Hat and Edge for Rust Resistance
2014ChevroletImpala LimitedRearCoated Hat and Edge for Rust Resistance
2013ChevroletImpalaRearCoated Hat and Edge for Rust Resistance
2012ChevroletImpalaRearCoated Hat and Edge for Rust Resistance
2011ChevroletImpalaRearCoated Hat and Edge for Rust Resistance
2009BuickAllure3.8LV6RearCoated Hat and Edge for Rust Resistance
2009BuickLaCrosse3.8LV6RearCoated Hat and Edge for Rust Resistance
2008BuickAllure3.8LV6RearCoated Hat and Edge for Rust Resistance
2008BuickLaCrosse3.8LV6RearCoated Hat and Edge for Rust Resistance
2008PontiacGrand PrixBaseRearCoated Hat and Edge for Rust Resistance
2007BuickAllureRearCoated Hat and Edge for Rust Resistance
2007BuickLaCrosseRearCoated Hat and Edge for Rust Resistance
2007PontiacGrand PrixBaseRearCoated Hat and Edge for Rust Resistance
2006BuickAllureRearCoated Hat and Edge for Rust Resistance
2006BuickLaCrosseRearCoated Hat and Edge for Rust Resistance
2006PontiacGrand PrixBaseRearCoated Hat and Edge for Rust Resistance
2005BuickAllureRearCoated Hat and Edge for Rust Resistance
2005BuickLaCrosseRearCoated Hat and Edge for Rust Resistance
2005PontiacGrand PrixBaseRearCoated Hat and Edge for Rust Resistance
2004PontiacGrand PrixRearCoated Hat and Edge for Rust Resistance

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

18048699208794552312756923127570

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.