SHW Performance PRL39823 Cross-Drilled Monobloc Brake Rotor for Rear-Left 330x28

Vehicle Fitment

• Rear axle, left side - 330 mm x 28 mm rotor dimension; select Porsche Boxster/Cayman models (non-ceramic brake option)

Features

• Cross-drilled surface pattern to improve heat dissipation and gas evacuation under heavy braking
• Monobloc one-piece rotor design for structural integrity and direct OE style replacement
• High-carbon cast iron construction engineered for thermal stability and resistance to cracking
• Internally-vented rotor body to assist cooling during performance use
• Precision double-disc milled faces for flatness, optimal pad contact and reduced NVH (noise/vibration/harshness)
• Corrosion-resistant coating on hub and non-friction surfaces for extended service life in road conditions
• Sold individually, per rotor, allowing selective replacement of the rear-left side
• Engineered for performance-street driving with occasional track use while retaining OEM-fitment quality

Specifications

• Rotor Diameter: 330 mm
• Rotor Thickness: 28 mm
• Fitment Position: Rear axle, left side
• Construction: Monobloc high-carbon cast iron, cross-drilled friction face, internally vented
• Surface Treatment: Cross-drilled friction face; coated hub/non-friction surfaces
• OEM Reference: 981 352 403 00 (for some Boxster/Cayman rear-left applications)

Included Components

• 1 x SHW Performance brake rotor - part # PRL39823

Product Description

Upgrade the rear-left braking system of your Porsche Boxster or Cayman with the SHW Performance PRL39823 rotor. With its 330 mm diameter and 28 mm thickness, this rotor maintains OEM geometry while offering enhanced thermal durability and performance thanks to its high-carbon cast iron monobloc construction and cross-drilled face.

The monobloc design provides structural integrity, while the internally-vented body aids cooling in heavier use scenarios. The cross-drilled surface helps evacuate heat and gases, promoting better braking consistency during spirited driving. The corrosion-resistant coating supports longevity in real-world conditions.

Installation is straightforward: remove the factory rear-left rotor, clean the hub mounting surface and hardware, install the rotor using factory hardware and torque specs, then perform a proper pad bed-in procedure. Ideal for Porsche owners who seek a direct-fit replacement rotor with performance-oriented upgrades built in. Confirm your vehicle's rear-left side rotor dimension is 330x28 mm and ensure you are not equipped with the ceramic composite brake option before purchase.