Raybestos 580665R Disc Brake Rotor - Rear
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Raybestos
R-Line

Raybestos 580665R Disc Brake Rotor - Rear

Brand Raybestos 580665R
Position Rear
Conventional Or Drum-In-Hat Type Rotor Conventional
Discard Thickness 0.310
Discard Thickness 7.850
Mounting Bolt Hole Circle Diameter 2.580
Mounting Bolt Hole Circle Diameter 65.550
Nominal Thickness 0.390
Nominal Thickness 9.900
Product line R-Line
Fits Saturn · 11 vehicles

Conventional rotor. A straightforward disc brake rotor design for dependable braking performance.

R-Line. Raybestos line focused on practical replacement parts.

Cross-references AMS Automotive 4051, Centric Parts 121.62109 and Centric Parts 125.62109 for the same application. See all 32.

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Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $40.35
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Raybestos R-Line Rear Disc Brake Rotor

The Raybestos R-Line 580665R is a conventional rear disc brake rotor built for specific Saturn Astra and Chevrolet Astra applications. It is sized to match the listed OE-style dimensions, including a 9.900 mm nominal thickness and 7.850 mm discard thickness, for direct replacement service on the rear axle.

For shoppers searching for a rear brake rotor for 2008-2009 Saturn Astra or a rear rotor for 2000-2008 Chevrolet Astra, this part number provides a fitment-specific option from Raybestos. The 580665R also cross-references Centric Parts 121.62109 for the same application.

Key Features

  • Raybestos R-Line disc brake rotor, part number 580665R
  • Conventional rotor design for rear brake service
  • Nominal thickness: 9.900 mm (0.390 in)
  • Discard thickness: 7.850 mm (0.310 in)
  • Mounting bolt hole circle diameter: 65.550 mm (2.580 in)
  • OE-style fitment for select Saturn Astra and Chevrolet Astra models

Product Details

The Raybestos R-Line is the brand’s value-focused brake line for everyday repair work, offering application-specific coverage and standard replacement dimensions. The 580665R rear brake rotor is listed for 2008-2009 Saturn Astra rear applications with a 264 mm rotor diameter and .001 in oversize thickness note, as well as 2000-2008 Chevrolet Astra rear applications with a 280 mm front disc note in the fitment data. Use the exact vehicle listing to confirm the correct rear brake rotor for your Astra before ordering.

This rotor is a direct-fit replacement for drivers and technicians looking for a rear brake rotor for Saturn Astra rear brake service or Chevrolet Astra rear brake maintenance. The Raybestos 580665R part number is also useful when matching interchange references during brake system repairs.

Common Problems This Rotor Can Address

  • Rear brake pulsation from rotor thickness variation
  • Brake noise caused by worn or scored rotor surfaces
  • Reduced braking performance from rotor wear beyond discard thickness
  • Uneven rear brake feel during routine service
  • Need for a replacement rotor matched to the listed Astra fitment

Installation Notes and Tips

Verify rear axle fitment, rotor diameter, and thickness before installation. Clean the hub mounting surface thoroughly to help the rotor seat evenly, and inspect pads, calipers, and hardware condition during brake service. After installation, follow the vehicle manufacturer’s brake bedding procedure and recheck torque specifications.

Quality Assurance

Raybestos manufactures the R-Line as a standard replacement brake product line for everyday repair applications. The 580665R is built to the listed dimensional specifications and fitment data for confirmed Saturn Astra and Chevrolet Astra rear brake service.

Related reading

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2009SaturnAstraRearRotor Diameter 264mm; .001 IN Oversize Thickness; R-Line
2008ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2008SaturnAstraRearRotor Diameter 264mm; .001 IN Oversize Thickness; R-Line
2007ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2006ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2005ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2004ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2003ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2002ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2001ChevroletAstraRear280mm Front Disc; Raybestos R-Line
2000ChevroletAstraRear280mm Front Disc; Raybestos R-Line
Directly replaces or cross-references 32 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4051Centric Parts — 121.62109Centric Parts — 125.62109Centric Parts — 320.62109CCentric Parts — 320.62109HDorman - HELP — 57109DuraGo — BR901064Four Seasons — 55155Marmon Ride Control — A5896Parts Authority — PRT5838Raybestos Brakes — 580665RStopTech — 126.62109SLStopTech — 126.62109SR120.62109125.62109CRY127.62109L127.62109R57109DG235677326443580665RGS091177729117772AX901064BD180018DF4051SSDK6077TSR816WS1-155155YH235677YH235677CYH235677P