HomeBrake > Drums and RotorsRaybestos 580503R Disc Brake Rotor - Front
Part #: 580503R

Raybestos 580503R Disc Brake Rotor - Front

R-Line, Front
8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
R-Line, Front
Fitment: Chevrolet and Pontiac, Cobalt and G5
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Raybestos R-Line Disc Brake Rotor 580503R

The Raybestos R-Line Disc Brake Rotor 580503R is engineered for reliable braking performance on Chevrolet Cobalt and Pontiac G5 models. Designed as a vented, conventional rotor, it offers consistent heat dissipation and durability for everyday driving conditions.

  • Vented disc brake rotor for improved cooling
  • Overall height: 1.843 inches (46.8 mm)
  • Outside diameter: 11.024 inches (280 mm)
  • Mounting bolt hole quantity: 5 with 110 mm bolt circle diameter
  • Center hole diameter: 2.587 inches (65.7 mm)
  • Nominal thickness: 0.945 inches (24 mm)
  • Discard thickness: 0.906 inches (23 mm)
  • Conventional rotor type compatible with Chevrolet Cobalt and Pontiac G5

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on providing dependable replacement brake components that meet or exceed OEM specifications. This product line emphasizes quality materials and precise manufacturing tolerances, ensuring that the 580503R disc brake rotor delivers consistent braking performance and longevity for compatible vehicles.

Technical Specifications and Features

This vented disc brake rotor features an overall height of 1.843 inches and an outside diameter of 11.024 inches, designed to fit the brake system requirements of Chevrolet Cobalt and Pontiac G5 models. The rotor includes five mounting bolt holes arranged on a 110 mm bolt circle diameter, with a center hole diameter of 2.587 inches, ensuring proper fitment and secure installation. The nominal thickness of 0.945 inches provides sufficient material for wear, while the discard thickness of 0.906 inches indicates the minimum safe thickness before replacement is necessary.

Common Applications and Problem Solving

  • Replacement for worn or warped rotors causing brake pulsation
  • Addressing reduced braking efficiency due to rotor thickness below discard limits
  • Resolving noise issues related to uneven rotor surfaces
  • Upgrading to vented rotors for improved heat dissipation in daily driving
  • Ensuring proper fitment on Chevrolet Cobalt and Pontiac G5 brake assemblies

Installation Notes and Tips

When installing the Raybestos R-Line 580503R rotor, ensure the mounting surface is clean and free of rust or debris. Verify the rotor thickness before installation to confirm it meets nominal specifications. Use proper torque settings on the five mounting bolts arranged on the 110 mm bolt circle diameter. It is recommended to replace brake pads simultaneously to maintain optimal braking performance and rotor longevity.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 580503R rotor is produced with high-grade materials and precision engineering. While specific warranty details are not provided here, Raybestos typically offers coverage against defects in material and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.

BrandRaybestos
Part Number580503R
PositionR-Line, Front
Center Hole Diameter2.587
Center Hole Diameter65.700
Conventional Or Drum-In-Hat Type RotorConventional
Discard Thickness0.906
Discard Thickness23.000
Mounting Bolt Hole Circle Diameter4.331
Mounting Bolt Hole Circle Diameter110.000
Mounting Bolt Hole Diameter4.331
Mounting Bolt Hole Diameter110.000
Mounting Bolt Hole Quantity5
Nominal Thickness0.945
Nominal Thickness24.000
Outside Diameter11.024
Outside Diameter280.000
Overall Height1.843
Overall Height46.800
Solid Or Vented Type RotorVented
Stud/Lug Hole Quantity5

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010ChevroletCobalt2.2LL4FrontFits vehicles with 5-lug wheels.; R-Line
2010PontiacG5FrontPONTIAC Brake Code JM4; Raybestos R-Line
2009ChevroletCobalt2.2LL4FrontFits vehicles with 5-lug wheels.; R-Line
2009PontiacG5FrontFits vehicles with 5-lug wheels.; R-Line
2008ChevroletCobalt2.2LL4FrontFits vehicles with 5-lug wheels.; R-Line
2008PontiacG5FrontFits vehicles with 5-lug wheels.; R-Line
2007ChevroletCobalt2.2LL4FrontFits vehicles with 5-lug wheels.; R-Line
2007PontiacG5FrontFits vehicles with 5-lug wheels.; R-Line

* 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:

120.62104121.62104126.62104SL126.62104SR127.62104CR127.62104L127.62104R128.62104L128.62104R14-5514414569015274604180877571930380820-5514420047225010676250114572583629525863340320.621043263504122641226DG49389555144580503580503FZN580503R580503RGS6620715AR82004EVCAX900498BD126482BD126482EBD180235BR55144BR900498BR90049802PRT5690PS126482YH145690YH200472YH200472CYH200472P

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