Pagid 355123041 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for BMW 135i

The Pagid disc brake rotor part number 355123041 is engineered to meet the specific braking needs of the BMW 135i. Designed with durable materials and precision construction, this rotor ensures consistent performance and longevity under demanding driving conditions.

• Material: Gray cast iron disc with aluminum hat
• Composite construction with fully coated surfaces
• Rust resistant coating for extended durability
• Disc finish and hat finish both coated for corrosion protection
• Surface type: Cross drilled for improved heat dissipation
• Outside diameter: 338 mm, height: 73 mm
• Nominal thickness: 25.90 mm, discard thickness: 24.40 mm
• 6 bolt holes for secure fitment

About the Hella Pagid OE Two Piece Design

This rotor is part of the Hella Pagid - OE Two Piece Design Made in Europe (Aluminum Hat, High Carbon Friction Ring, Fully Coated) product line. The two-piece design combines a gray cast iron friction ring with a lightweight aluminum hat, reducing unsprung weight and improving thermal management. The fully coated surfaces provide enhanced corrosion resistance, contributing to longer service life and reliable braking performance.

Technical Details and Performance

The composite construction of the Pagid 355123041 rotor features a gray cast iron disc for effective friction and heat absorption, paired with an aluminum hat to reduce overall weight. The cross-drilled surface design aids in heat dissipation and helps maintain consistent braking under high stress. Both the disc and hat are coated to resist rust and corrosion, which is critical for maintaining rotor integrity over time. With a nominal thickness of 25.90 mm and a discard thickness of 24.40 mm, this rotor meets precise specifications for the BMW 135i, ensuring proper fit and function.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 135i models
• Improves braking consistency and reduces brake fade
• Addresses corrosion issues common in untreated rotors
• Reduces unsprung weight for improved suspension response
• Maintains proper rotor thickness for safe braking performance

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the bolt hole alignment with the BMW 135i hub assembly. It is recommended to replace brake pads simultaneously to optimize braking performance. Check rotor thickness regularly and replace when reaching discard thickness of 24.40 mm. Proper torque specifications should be followed when securing the rotor to avoid warping.

Quality Assurance and Warranty

Pagid rotors are manufactured to meet OE standards with strict quality control processes. The rust resistant coating and composite design contribute to durability and consistent performance. Warranty information should be confirmed with the supplier or manufacturer, as it may vary by region.