DuraGo BR34173 Disc Brake Rotor - Front

Overview of DuraGo BR34173 Disc Brake Rotor

The DuraGo BR34173 disc brake rotor is engineered for reliable braking performance on select BMW models. Designed with full cast iron construction and vented design, this rotor supports effective heat dissipation and consistent stopping power for vehicles like the BMW 323i and Z4.

• Material: Durable cast iron for strength and heat resistance
• Vented rotor design to improve cooling during braking
• Nominal thickness of 0.87 inches (22 mm) with discard thickness at 0.8 inches (20.4 mm)
• Overall height of 2.03 inches (51.5 mm) ensuring proper fitment
• Outside diameter of 11.81 inches (300 mm) compatible with specified BMW models
• Five mounting bolt holes with 0.58 inch (14.7 mm) diameter and 4.72 inch (120 mm) bolt circle diameter
• Non-directional brake surface for flexible installation
• Conventional rotor type without ABS tone ring

Detailed Product Description

The DuraGo BR34173 is a vented disc brake rotor constructed from full cast iron, providing a balance of durability and thermal management. Its vented design allows air to flow between the rotor surfaces, reducing heat buildup during braking and helping to maintain consistent brake performance. The rotor’s nominal thickness of 0.87 inches (22 mm) and discard thickness of 0.8 inches (20.4 mm) ensure it meets OEM specifications for wear limits. With an outside diameter of 11.81 inches (300 mm) and an overall height of 2.03 inches (51.5 mm), this rotor is engineered to fit BMW 323i, 325Ci, 325i, 325xi, 328Ci, 328i, Z3, and Z4 models precisely. The five mounting bolt holes and non-directional brake surface simplify installation and compatibility.

Compatible BMW Models and Applications

• BMW 323i
• BMW 325Ci
• BMW 325i
• BMW 325xi
• BMW 328Ci
• BMW 328i
• BMW Z3
• BMW Z4

Common Issues Addressed by This Rotor

• Brake rotor warping causing vibration during braking
• Reduced braking efficiency due to worn or thin rotors
• Overheating and brake fade from insufficient heat dissipation
• Uneven brake pad wear linked to rotor surface irregularities
• Noise and pulsation caused by damaged or out-of-spec rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coatings or debris
• Check compatibility with vehicle’s mounting bolt pattern and diameter
• Torque mounting bolts to manufacturer specifications for safety
• Inspect brake pads and calipers during rotor replacement for optimal performance

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR34173 rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Refer to product documentation for exact warranty terms.