Bosch 45011172 Disc Brake Rotor - Rear

Bosch QuietCast Rear Rotor for Saturn and Saab

The Bosch QuietCast Rotor 45011172 is a rear disc brake rotor for select Saturn and Saab applications. Built for vehicles that need a direct-fit replacement rotor, it supports consistent rear braking performance on compatible Saturn L-Series, LW-Series, LS-Series, and Saab 9-3/9-5 models.

Key Features

• Rear disc brake rotor for select Saturn and Saab vehicles
• Bosch QuietCast Rotor line for OE-style brake service
• Product height: 2.724409 in
• Direct replacement part number 45011172
• Cross-references Bosch QuietCast applications and related OE-style listings

Product Details

Bosch QuietCast Rotor 45011172 is engineered as a rear brake rotor for a range of Saturn and Saab passenger vehicles. Compatible With 2001-2005 Saturn L300, rear; 2003 Saab 9-3, rear; 2001-2003 Saturn L200, rear; 2001-2003 Saturn LW200, rear; 2001-2003 Saturn LW300, rear; 1999-2002 Saab 9-3, rear; 2001-2002 Saturn L100, rear; 2000 Saturn LS, rear; 2000 Saturn LS1, rear; 2000 Saturn LS2, rear; 2000 Saturn LW1, rear; 2000 Saturn LW2, rear; 1999 Saab 9-5, rear, thru chassis serial #3025751; and 1997-1998 Saab 900, rear. The Bosch QuietCast Rotor line is positioned for drivers seeking a straightforward OE-style brake service part, and part number 45011172 is a useful reference when matching rear rotor applications for these platforms.

This part cross-references Bosch QuietCast Rotor applications and OE-style listings such as 5084751 and 5391578 for the same application.

Common Brake Issues It May Address

• Rear brake pulsation from rotor wear or uneven surface condition
• Brake noise caused by a worn or damaged rear rotor
• Reduced braking consistency from rotor thickness variation
• Corrosion or scoring on the rear brake surface
• Service needs on Saturn and Saab rear brake systems

Installation Notes and Tips

Verify rear fitment by year, model, and notes before ordering, especially for the 1999 Saab 9-5 chassis serial break. Inspect pads, caliper condition, and hub surfaces during rotor replacement to help ensure proper brake operation. Confirm rotor dimensions and vehicle application against the existing brake setup before installation.

Quality Assurance

Bosch QuietCast Rotor 45011172 is part of Bosch’s QuietCast brake line, a product family focused on OE-style replacement fitment for brake service. Use the confirmed vehicle listing to match the correct rear application for Saturn and Saab models.