DuraGo BR900370 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Buick, Chevrolet, Pontiac, and Saturn

The DuraGo BR900370 disc brake rotor is engineered to provide consistent braking performance for select Buick, Chevrolet, Pontiac, and Saturn models. Designed with durable cast iron construction, this rotor meets the specifications required for vehicles like the Montana, Relay, Terraza, and Uplander.

• Material: Full cast iron for strength and heat dissipation
• Rotor Type: Solid, conventional design
• Outside Diameter: 11.81 inches (300 mm)
• Nominal Thickness: 0.47 inches (12 mm)
• Discard Thickness: 0.41 inches (10.5 mm)
• Mounting Bolt Holes: 5 holes with 0.57 inch (14.4 mm) diameter
• Center Hole Diameter: 2.78 inches (70.7 mm)
• Non-directional brake surface for versatile installation
• No ABS tone ring included
• No rust resistant coating applied

Durable Construction and Precise Fitment

The DuraGo BR900370 rotor features a full cast iron construction that offers reliable heat dissipation and structural integrity under demanding braking conditions. Its solid, conventional design ensures compatibility with the braking systems of Buick Montana, Chevrolet Relay, Pontiac Terraza, and Saturn Uplander models. The rotor measures 11.81 inches in outside diameter and maintains a nominal thickness of 0.47 inches, with a discard thickness of 0.41 inches to indicate when replacement is necessary. The 5-bolt mounting pattern with a 4.53 inch (115 mm) bolt circle diameter and 0.57 inch bolt hole diameter ensures a secure fit. This rotor does not include an ABS tone ring and features a non-directional brake surface, allowing for flexible installation without concern for rotor orientation.

Compatible Vehicle Applications and Common Issues Addressed

• Compatible with Buick Montana, Chevrolet Relay, Pontiac Terraza, and Saturn Uplander models
• Replaces worn or warped rotors causing brake pulsation or noise
• Restores braking performance affected by rotor thickness below discard limits
• Addresses uneven brake pad wear due to rotor surface irregularities
• Eliminates vibration and improves pedal feel during braking

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surface to prevent rotor misalignment
• Torque mounting bolts to manufacturer specifications for secure fit
• Check brake pads for wear and replace if necessary during rotor installation
• Perform a test drive to verify proper braking function after installation

Quality Assurance and Warranty Information

DuraGo disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While this rotor does not feature a rust resistant coating, its cast iron construction provides durability under normal operating conditions. Please refer to DuraGo's warranty policy for specific coverage details related to the BR900370 part number.