Brembo 09.8998.11 UV Coated Rear Rotor for Porsche Boxster Cayman 987 981 718

Vehicle Fitment

• 2005-2008 Porsche Boxster (987 MkI, 2.7L H6) - Rear
• 2009-2012 Porsche Boxster (987 MkII, 2.9L H6) - Rear
• 2012-2016 Porsche Boxster / Boxster S (981, 2.7L / 3.4L H6) - Rear
• 2017-present Porsche 718 Boxster / Boxster S (982, 2.0T / 2.5T H4) - Rear
• 2006-2008 Porsche Cayman / Cayman S (987C MkI, 2.7L / 3.4L H6) - Rear
• 2009-2012 Porsche Cayman / Cayman S (987C MkII, 2.9L / 3.4L H6) - Rear
• 2013-2016 Porsche Cayman / Cayman S (981C, 2.7L / 3.4L H6) - Rear
• 2017-present Porsche 718 Cayman / Cayman S (982C, 2.0T / 2.5T H4) - Rear

Fitment Notes

• Rear axle fitment only - sold individually (1 rotor per box); two units required for a complete rear axle replacement
• Applies to all standard rear brake configurations across 987, 981, and 718/718C (982/982C) generations - base and S trims share the same rear rotor specification and use this part
• Does NOT fit the 986 Boxster (1997-2004), which uses a smaller rear rotor of a different specification
• Does NOT fit Porsche 718 GTS 4.0, GT4, or Spyder variants equipped with larger rear brakes; verify your rear rotor diameter before ordering
• Porsche OE cross-reference: 98735240101 (also formatted as 987.352.401.01)

Features

• UV paint treatment on all non-friction surfaces - including internal venting chambers - provides superior corrosion resistance right out of the box
• Water-based, solvent-free UV paint process - environmentally responsible with low energy consumption
• High-carbon cast iron construction delivers enhanced thermal stability, reduced noise, and improved resistance to heat-induced distortion
• Vented disc design promotes airflow between rotor faces for effective heat dissipation during repeated or spirited braking
• Direct OE-equivalent replacement - fully interchangeable with original equipment with no modifications required
• ECE-R90 certified - meets European safety standards for replacement brake discs
• Electronically balanced to tight tolerances, minimizing runout and pedal pulsation
• Includes fixing screw kit with all hardware required for installation

Specifications

• Position: Rear (Left or Right)
• Disc Type: Vented
• Outside Diameter: 299 mm (~11.77 in)
• Nominal Thickness: 20 mm
• Minimum Thickness: 18 mm
• Overall Height: 67 mm
• Center Bore: 98 mm
• Lug Hole Count: 5
• Surface Finish: UV Coated / Smooth Plain
• Material: High-Carbon Cast Iron
• ABS Tone Ring: Not Included
• Porsche OE Cross-Reference: 98735240101
• Brembo Line: Prime (OE Replacement)

Included Components

• 1x Brembo UV Coated Vented Rear Brake Rotor
• 1x Fixing Screw Kit (all mounting hardware included)

Product Description

The Brembo 09.8998.11 is a UV-coated vented rear brake rotor from the Brembo Prime line, designed as a direct OE-equivalent replacement for the Porsche Boxster and Cayman across three generations - the 987 (2005-2012), 981 (2012-2016), and 718/982 (2017-present) - covering both base and S trim levels, which share the same rear rotor specification. It cross-references Porsche OE part number 98735240101 and installs as a direct bolt-on replacement requiring no modifications.

This rotor is sold individually - one per box - as is standard for Porsche brake components. Two are required for a complete rear axle service. Brembo's UV paint treatment protects all non-friction surfaces including the internal venting chambers before the rotor reaches the vehicle, providing immediate corrosion resistance. High-carbon cast iron alloy improves heat management and reduces noise, well-suited to the Boxster and Cayman's mid-engine rear brake loading characteristics. Not compatible with the earlier 986 Boxster or with performance variants (GT4, Spyder, GTS 4.0) that specify larger rear rotors - verify your rear rotor diameter before ordering.