Wilwood 140-15231 AERO6R/ST Disc Brake Kit 14" Road Racing Front

The Wilwood 140-15231 is a purpose-built, front disc brake kit engineered for dedicated road racing applications. This championship-proven system delivers race-grade stopping power with precision-matched components designed to work in harmony with factory master cylinders and ABS systems.

AERO6R/ST Six-Piston Calipers:

• Forged aluminum caliper body with Type III Mil-Spec hard anodized finish in medium gray — delivers superior wear resistance in piston bores and high resistance to abrasion and corrosion
• Wider-than-standard caliper body accepts 20mm thick brake pads for increased pad volume and extended service life
• Thermlock® pistons reduce heat transfer from pads to the caliper, improving fade resistance and extending seal and fluid service life
• Internal damper springs and controlled-retraction, high-temperature piston seals maintain consistent pedal height throughout the race
• Piston volumes precisely matched for full compatibility with OE master cylinder output and ABS controls
• Compatible with manual brake conversions using balance bar pedals and appropriately sized master cylinders

Spec37 Alloy GT Series Rotors:

• 14.00" diameter directional vane rotors in Spec37 alloy for maximum thermal capacity under race conditions
• Dynamically mounted to OE hubs using weight-saving forged aluminum hats
• Rotor hats feature the same Type III Mil-Spec hard anodized finish as the calipers for wear resistance at load-bearing surfaces

Complete Kit Contents:

• AERO6R/ST six-piston calipers (pair)
• 14.00" Spec37 alloy GT series directional vane rotors (pair)
• Forged aluminum rotor hats (pair)
• Caliper mounting brackets with all premium-grade fasteners included
• High-temperature, high-friction race compound brake pads — application-specific selection

Fitment & Installation Notes:

• Mounting brackets secure calipers to spindles in the stock location — no modifications required
• Note: A stainless steel braided flexline kit must be purchased separately and ordered by model year to complete installation

Wilwood's 140-15231 brake kit represents a direct-bolt-on race solution that combines proven motorsport technology with OE compatibility, making it an ideal upgrade for competitors demanding reliable, consistent braking performance from session to session.