SHW Performance BRR43504 Rear Right Cross-Drilled Rotor BMW X3 M X4 M F97 F98

Vehicle Fitment

• 2020-2024 BMW X3 M (F97, S58 3.0L Twin-Turbo I6, xDrive AWD, SUV)
• 2020-2022 BMW X3 M Competition (F97, S58 3.0L Twin-Turbo I6, xDrive AWD, SUV)
• 2020-2025 BMW X4 M (F98, S58 3.0L Twin-Turbo I6, xDrive AWD, SUV)
• 2020-2022 BMW X4 M Competition (F98, S58 3.0L Twin-Turbo I6, xDrive AWD, SUV)
• 2020 BMW X4 M40i (F98, B58 3.0L Single-Turbo I6, xDrive AWD, SUV)

Fitment Notes

• This is the Rear Right (passenger side) rotor only - sold individually. Two rotors required for a complete rear axle replacement.
• Direct OEM replacement for part number 34118054828.
• Confirm model year and trim before ordering. Verify your existing OEM part number to ensure correct fitment.
• Professional installation and proper break-in bedding procedure required after installation.

Features

• Cross-drilled disc surface enhances heat dissipation and reduces brake fade under the high-output braking demands of the S58 twin-turbocharged 6-cylinder - shared across the X3 M, X3 M Competition, X4 M, and X4 M Competition.
• Internally vented, two-piece composite construction - cast iron friction ring connected to a lightweight aluminium disc bell via stainless steel pins - significantly reduces unsprung and rotational mass versus conventional one-piece cast iron designs.
• Fully floating Pin-Drive design minimizes brake judder, accommodates thermal expansion more effectively, and opens central cooling channels for up to 50% greater airflow and heat dissipation versus traditional designs.
• Manufactured by SHW Performance - a premier OEM brake disc manufacturer that jointly developed its Pin-Drive rotor technology with BMW Motorsport in 1993, and the only brake disc producer to encompass every step of production entirely in-house.
• Direct OEM-specification replacement delivering factory fit, finish, and braking performance.
• Made in Germany.

Specifications

• Brand: SHW Performance
• Part Number: BRR43504
• OEM Replacement For: 34118054828
• Position: Rear Right (passenger side)
• Disc Style: Cross-drilled, internally vented, two-piece Pin-Drive lightweight composite
• Disc Dimensions: 370 x 24 mm
• Construction: Cast iron friction ring / aluminium disc bell
• Country of Manufacture: Germany
• Quantity: Sold each (1 rotor)

Included Components

• 1x SHW Performance Rear Right Cross-Drilled Lightweight Brake Rotor (Pin-Drive)
• Note: Hardware not included. Two units required for complete rear axle replacement.

Product Description

The SHW Performance BRR43504 is a rear right cross-drilled lightweight brake rotor engineered as a direct OEM-equivalent replacement for the 2020-2024 BMW X3 M, X3 M Competition, X4 M, and X4 M Competition (F97/F98), replacing OEM part number 34118054828. SHW Performance jointly developed its Pin-Drive rotor technology with BMW Motorsport in 1993 - an engineering partnership that brought motorsport-derived brake disc design to production vehicles - and is the only brake disc manufacturer to manage every step of production entirely in-house, from casting to precision machining. The BRR43504 is the identical OEM-specification rotor made available directly to the consumer.

At 370 x 24 mm, this internally vented two-piece Pin-Drive rotor is purpose-built for the rear axle braking demands of the S58-powered X3 M and X4 M family - high-performance SAV platforms capable of 0-60 mph in under 4 seconds in M Competition trim. The cross-drilled disc face promotes heat dispersal and consistent pad bite under repeated hard stops, while the lightweight aluminium bell and Pin-Drive floating construction reduce rotational and unsprung mass versus conventional one-piece iron designs. The offset pin connection maximizes central cooling channel airflow for up to 50% better heat dissipation. Sold individually - two are required for a complete rear axle service. A proper break-in bedding procedure is required after installation.