HomeBrake > Drums and RotorsDuraGo BR55040-01 Disc Brake Rotor - Front
Part #: BR55040-01

DuraGo BR55040-01 Disc Brake Rotor - Front

Front
25 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, Oldsmobile, and Pontiac, Alero, Classic, Cutlass, Grand Am, and Malibu
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Overview of DuraGo BR55040-01 Disc Brake Rotor

The DuraGo BR55040-01 is a cast iron vented disc brake rotor designed for reliable braking performance. Engineered for select Chevrolet, Oldsmobile, and Pontiac models, this rotor offers durability and consistent stopping power for vehicles like the Malibu, Alero, Classic, Cutlass, and Grand Am.

  • Constructed from full cast iron for strength and heat dissipation
  • Vented design to improve cooling and reduce brake fade
  • Rust resistant coating to extend rotor life
  • Non-directional brake surface for versatile installation
  • Compatible with 5 mounting bolt holes and conventional rotor setup

Detailed Product Features and Specifications

The DuraGo BR55040-01 rotor features a nominal thickness of 1.02 inches (26 mm) and a discard thickness of 0.97 inches (24.7 mm), ensuring it meets precise wear limits for safe operation. Its overall height measures 1.93 inches (48.9 mm), with an outside diameter of 10.96 inches (278.3 mm), fitting the specified vehicle applications accurately. The rotor includes five mounting bolt holes arranged on a 4.65 inch (118 mm) bolt circle diameter, with each hole measuring 0.64 inches (16.2 mm) in diameter. The center hole diameter is 2.78 inches (70.7 mm). This conventional, vented rotor does not include an ABS tone ring and features a non-directional braking surface, allowing for flexible installation without concern for rotor orientation. The rust resistant coating helps protect the rotor surface from corrosion, maintaining performance over time.

Compatible Vehicles and Applications

  • Chevrolet Malibu
  • Oldsmobile Alero and Cutlass
  • Pontiac Grand Am and Classic

This rotor is designed specifically for these models, ensuring proper fitment and brake system compatibility.

Common Issues Addressed by DuraGo BR55040-01

  • Brake rotor wear and thinning beyond discard thickness
  • Overheating and brake fade due to insufficient cooling
  • Corrosion and rust buildup on rotor surfaces
  • Uneven braking caused by warped or damaged rotors
  • Noise and vibration from worn or incompatible rotors

Installation Notes and Tips

When installing the DuraGo BR55040-01 rotor, ensure the rotor surface is clean and free of debris before mounting. Verify the rotor thickness is above the discard limit to maintain safety standards. Since this rotor is non-directional, it can be installed on either side without affecting performance. Use proper torque specifications for the 5 mounting bolts to avoid rotor warping. This rotor is designed for vehicles with conventional brake systems and does not include an ABS tone ring, so confirm compatibility with your vehicle's braking components.

Quality Assurance and Warranty

DuraGo manufactures this rotor with full cast iron construction and a rust resistant coating to meet industry standards for durability and performance. While specific warranty details are not provided, DuraGo products typically adhere to quality control processes to ensure reliable operation in compatible Chevrolet, Oldsmobile, and Pontiac vehicles.

BrandDuraGo
Part NumberBR55040-01
MaterialCast iron
Discard Thickness0.97
Discard Thickness24.7
Nominal Thickness1.02
Nominal Thickness26
ConstructionFull cast
Rust Resistant CoatingYes
Overall Height1.93
Overall Height48.9
Outside Diameter10.96
Outside Diameter278.3
Mounting Bolt Hole Quantity5
ABS Tone Ring IncludedNo
Solid Or Vented Type RotorVented
Center Hole Diameter2.78
Center Hole Diameter70.7
Mounting Bolt Hole Circle Diameter118
Mounting Bolt Hole Circle Diameter4.65
Mounting Bolt Hole Diameter0.64
Mounting Bolt Hole Diameter16.2
Directional or Non-Directional Brake SurfaceNon-directional
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
SlottedNo

This part fits 25 vehicles. Search below:

YearMakeModelPositionNotes
2005ChevroletClassicFrontCoated Hat and Edge for Rust Resistance
2005PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
2004ChevroletClassicFrontCoated Hat and Edge for Rust Resistance
2004OldsmobileAleroFrontCoated Hat and Edge for Rust Resistance
2004PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
2003ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
2003OldsmobileAleroFrontCoated Hat and Edge for Rust Resistance
2003PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
2002ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
2002OldsmobileAleroFrontCoated Hat and Edge for Rust Resistance
2002PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
2001ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
2001OldsmobileAleroFrontCoated Hat and Edge for Rust Resistance
2001PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
2000ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
2000OldsmobileAleroFrontCoated Hat and Edge for Rust Resistance
2000PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
1999ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
1999OldsmobileAleroFrontCoated Hat and Edge for Rust Resistance
1999OldsmobileCutlassFront10.94 Inch Rotor Diameter; Coated Hat and Edge for Rust Resistance
1999PontiacGrand AmFrontCoated Hat and Edge for Rust Resistance
1998ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
1998OldsmobileCutlassFront10.94 Inch Rotor Diameter; Coated Hat and Edge for Rust Resistance
1997ChevroletMalibuFrontCoated Hat and Edge for Rust Resistance
1997OldsmobileCutlassFront10.94 Inch Rotor Diameter; Coated 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:

18021774180388201804030718048801180602411806044218060692191527031917505119213925

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