SHW PFL39911 Left Front Drilled-Dimpled Rotor 340x34 Porsche Boxster S Cayman S

Vehicle Fitment

• 2013-2016 Porsche Boxster S (981) - 3.4L flat-six - without ceramic brakes (PCCB)
• 2014-2016 Porsche Boxster GTS (981) - 3.4L flat-six - without ceramic brakes (PCCB)
• 2014-2016 Porsche Cayman S (981C) - 3.4L flat-six - without ceramic brakes (PCCB)
• 2014-2016 Porsche Cayman GTS (981C) - 3.4L flat-six - without ceramic brakes (PCCB)

Fitment Notes

• S and GTS models only (3.4L) - the PFL39911 is for the 340mm x 34mm front rotor specification of the 981 Boxster S, Boxster GTS, Cayman S, and Cayman GTS; the base 981 Boxster 2.7L and Cayman 2.7L use smaller 315mm x 28mm front rotors and require a different SHW part number (PFL39811); verify your vehicle's trim level and existing front rotor diameter before ordering; installing a 340mm rotor where a 315mm is specified (or vice versa) is not possible - the caliper and hat dimensions are different
• Without ceramic brakes (PCCB) only - the optional Porsche Ceramic Composite Brake system uses ceramic rotors with a different caliper design that is not compatible with this iron rotor; verify your brake specification before ordering; PCCB calipers are yellow and standard iron calipers are red or silver
• Left front (driver side) only - one rotor per order; the matching right front rotor is a separate SHW part number; a complete front axle replacement requires both left and right rotors
• Sold individually - one rotor per order
• OE replacement - replaces the factory Porsche 340mm front rotor specification for these 981 S/GTS models; verify OE part number compatibility with your specific VIN before ordering

Features

• True OEM-source rotor - SHW (Schwabische Huttenwerke) is the direct OEM supplier of brake rotors to Porsche for the 981 platform; the PFL39911 is produced at SHW's German facility to the same specification as the factory-installed rotor on the 981 Boxster S, Boxster GTS, Cayman S, and Cayman GTS; the SHW Performance consumer line provides this factory-correct part directly to end consumers without the dealer pricing margin
• Drilled-dimpled friction surface - the 340mm S/GTS specification uses the same drilled-dimpled surface pattern as the base model PFL39811 but at the larger diameter and thickness appropriate for the S models' higher performance envelope; the combination of through-drilled holes and blind dimples across the friction face maintains the consistent outgassing and heat management characteristics of the factory brake specification; this is the designed surface as produced by SHW for Porsche, not an aftermarket modification to a smooth rotor
• 340mm x 34mm ventilated monobloc - the 340mm diameter is the standard iron front brake specification for the 981 Boxster S, Boxster GTS, Cayman S, and Cayman GTS; the 34mm thickness (vs. 28mm on the base 2.7L) provides significantly greater thermal mass for the S models' higher output engines and the more aggressive braking demands from higher track speeds and owner use; the internal vane structure provides continuous cooling airflow through the rotor body as the wheel rotates, maintaining more stable rotor temperatures through extended high-performance use
• Monobloc one-piece cast iron construction - the PFL39911 uses a one-piece construction appropriate for this application; the full iron mass provides the thermal storage capacity the 340mm S specification requires in street and moderate track use, and the monobloc design eliminates the mechanical complexity of two-piece floating rotors for straightforward OE-replacement service
• SHW manufacturing quality - SHW's integrated German facility controls every production step from iron foundry through machining and surface pattern production to inspection; the drilled-dimpled pattern on the PFL39911 is produced with consistent hole positioning and edge geometry across every rotor to OEM specification

Specifications

• Part Number: PFL39911
• Brand: SHW Performance (Schwabische Huttenwerke, Germany)
• Product: Drilled-Dimpled Monobloc Ventilated Disc Brake Rotor
• Position: Left Front (Driver Side)
• Rotor Diameter: 340mm
• Rotor Thickness: 34mm (ventilated)
• Surface: Drilled-Dimpled
• Construction: Monobloc (one-piece cast iron)
• Application: 2013-2016 Porsche Boxster S / Boxster GTS (981); 2014-2016 Porsche Cayman S / Cayman GTS (981C) - without PCCB
• Country of Origin: Germany
• Quantity: Sold individually (1 rotor per order)

Included Components

• 1x SHW PFL39911 Left Front Drilled-Dimpled Monobloc Brake Rotor

Product Description

The SHW PFL39911 is the left front drilled-dimpled monobloc brake rotor for the 2013-2016 Porsche Boxster S and Boxster GTS (981), and the 2014-2016 Porsche Cayman S and Cayman GTS (981C) with 3.4L flat-six engines and standard iron brakes - measuring 340mm in diameter and 34mm in thickness. SHW (Schwabische Huttenwerke) is the direct OEM supplier of this rotor to Porsche for the 981 S/GTS platform, and the SHW Performance product line makes this factory-specification part available directly to owners as an OEM-correct replacement.

The PFL39911 is the S/GTS-specification counterpart to the PFL39811 (315mm x 28mm, base 2.7L Boxster/Cayman); the two rotors are not interchangeable - the 340mm and 315mm specifications use different caliper and hat dimensions. The drilled-dimpled surface is the factory design for both Porsche 981 front rotor specifications, providing through-drilled and blind-dimpled channels for outgassing and heat management at the friction interface. The 34mm thickness vs. the base model's 28mm provides substantially greater thermal mass appropriate to the S models' 315hp output and their use patterns, which include more frequent high-speed braking.

Not compatible with Porsche Ceramic Composite Brakes (PCCB - yellow calipers). Left front position only; the right front is a separate SHW part number. Sold individually; a front axle replacement requires both left and right rotors. Verify OE part number and fitment against your specific vehicle VIN before purchasing.