DuraGo BR5550 Disc Brake Rotor - Front or Rear

DuraGo BR5550 Front Brake Rotor Overview

The DuraGo BR5550 is a vented front disc brake rotor built from cast iron for consistent braking performance and dependable fitment. It is a conventional, full-cast rotor with a non-directional brake surface, making it a straightforward OE-style replacement for a range of Chevrolet, GMC, Buick, Cadillac, and Oldsmobile applications.

For drivers searching for a front brake rotor for a 1995-1997 Chevrolet Blazer, 1983-1997 Chevrolet S10, or 1991-1997 GMC Sonoma, the BR5550 provides the core dimensions and construction needed for a direct replacement. This part cross-references Monroe Shocks & Struts (e.g., 5550) for the same application.

Key Features

• Cast iron construction for stable braking performance
• Vented rotor design for front axle applications
• Full cast, conventional rotor construction
• Non-directional brake surface for service flexibility
• 5-bolt mounting pattern with 120.65 mm bolt circle
• Outside diameter: 266.4 mm; overall height: 51.5 mm
• Nominal thickness: 26.3 mm; discard thickness: 24.3 mm
• Center hole diameter: 70.7 mm
• Fits front applications on select Chevrolet, GMC, Buick, Cadillac, and Oldsmobile models

Detailed Product Description

DuraGo has spent more than 45 years developing aftermarket brake products, and the BR5550 reflects that catalog-focused approach to fit, form, and function. Manufactured by ISO certified factories, this rotor is engineered to meet the dimensional requirements expected in professional brake service. The vented design helps manage heat during repeated stops, while the non-directional surface supports even pad contact during installation and service.

Vehicle coverage includes front brake rotor applications for the Chevrolet Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, Oldsmobile Bravada, Chevrolet S10 Blazer, GMC S15 Jimmy, and GMC S15. It also covers select Buick Riviera, Cadillac Eldorado, Cadillac Seville, and Oldsmobile Toronado applications in front and rear positions. Search terms such as DuraGo BR5550 front brake rotor, 1991-1997 GMC Sonoma brake rotor, and 1983-1997 Chevrolet S10 front rotor align with this part’s confirmed fitment.

Common Problems This Rotor Can Address

• Brake pulsation caused by worn or out-of-spec rotor thickness
• Reduced braking consistency from heat-affected rotor surfaces
• Noise or vibration linked to uneven rotor wear
• Service issues when replacing a conventional vented front rotor
• Fitment concerns on listed Chevrolet, GMC, Buick, Cadillac, and Oldsmobile models

Installation Notes and Tips

Verify rotor dimensions, hub fit, and bolt pattern before installation. Clean the hub mounting surface thoroughly to help prevent runout-related brake pulsation. Because this rotor uses a non-directional brake surface and does not include a rust-resistant coating, handle and store it carefully before installation to minimize surface oxidation. Always inspect pads, calipers, and wheel bearings during brake service, and confirm the vehicle’s front or rear position matches the listed application.

Quality Assurance

DuraGo manufactures this rotor through ISO certified factories and backs its brake program with a focus on catalog accuracy and OE-style fitment. The BR5550 is built to meet requirements for fit, form, and function across the listed applications.