Pagid 355109902 Disc Brake Rotor - Front

Overview of Pagid Disc Brake Rotor 355109902 for BMW 525i

The Pagid disc brake rotor part number 355109902 is designed specifically for BMW 525i models. Engineered from gray cast iron with a fully coated finish, this vented rotor offers reliable braking performance and corrosion resistance for your vehicle.

• Material: Gray cast iron for durability and heat dissipation
• Nominal Thickness: 24.00 mm with a discard thickness of 22.40 mm
• Coated disc and hat finish for rust resistance
• Vented full cast construction to improve cooling
• Outside diameter of 310.00 mm and height of 77.10 mm
• 6 bolt holes for secure fitment

Hella Pagid - High Carbon and Fully Coated Product Line

This rotor is part of the Hella Pagid - High Carbon and Fully Coated line, which focuses on enhanced durability and corrosion protection. The high carbon content in the gray cast iron improves thermal stability, while the full coating on both the disc and hat surfaces helps prevent rust and extends rotor life. This product line is engineered to meet the demands of BMW 525i drivers seeking consistent braking performance under various driving conditions.

Detailed Product Description

The Pagid 355109902 disc brake rotor is constructed from gray cast iron, a material known for its excellent heat absorption and dissipation properties. The rotor features a vented design that allows air to flow between the rotor surfaces, reducing heat buildup during braking. Both the disc and hat are coated to resist rust, which is critical for maintaining rotor integrity and performance over time. With a nominal thickness of 24.00 mm and a discard thickness of 22.40 mm, this rotor provides a balance between longevity and safety. The 310 mm outside diameter and 77.10 mm height ensure proper fitment and compatibility with the BMW 525i braking system. The 6 bolt hole configuration matches the vehicle’s hub for secure installation.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 525i
• Addresses brake noise caused by rust or uneven rotor surfaces
• Improves braking consistency by reducing heat-related fade
• Prevents corrosion-related rotor damage with coated surfaces
• Restores proper rotor thickness for safe braking performance

Installation Notes and Tips

When installing the Pagid 355109902 rotor on a BMW 525i, ensure the hub surface is clean and free of debris to promote proper rotor seating. Verify the rotor thickness before installation to confirm it meets or exceeds the discard thickness specification of 22.40 mm. Use the correct torque specifications for the 6 bolt holes to avoid rotor warping. It is recommended to replace brake pads simultaneously to optimize braking performance and rotor lifespan.

Quality Assurance and Warranty

Pagid rotors undergo strict quality control to meet OEM standards for fitment and performance. The Hella Pagid - High Carbon and Fully Coated line is designed to provide consistent braking reliability. While specific warranty details for part number 355109902 should be confirmed with the supplier, Pagid products typically come with manufacturer-backed warranties covering defects in materials and workmanship.