Description
The Wilwood 140-14928-R SX6R is a front big brake kit listed with forged Dynapro 6-piston calipers in a red powder-coat finish. Its published equipment list pairs two 12.19-inch (309.6 mm) vented rotors with Wilwood Polymatrix brake pads, stainless steel brake lines, mounting brackets and installation hardware. The product page identifies this as a vehicle-specific, bolt-on front system. Confirm the exact application before ordering rather than treating the front-kit designation as universal fitment.
Key specifications
- Manufacturer part number: 140-14928-R
- Kit type: Front big brake kit
- Calipers: Forged Dynapro 6-piston calipers
- Caliper finish: Red powder coat
- Piston material: High-temperature phenolic
- Rotor diameter: 12.19 in / 309.6 mm
- Rotor thickness: 0.81 in / 20.6 mm
- Rotor description: Directional-vane, vented; the listing notes slotted as optional
- Brake pad type: Wilwood Polymatrix compound
- Mounting: Vehicle-specific bolt-on
The listed rotor measurements give the relevant front-brake dimensions: 12.19 inches in diameter and 0.81 inch thick, also shown as 309.6 mm and 20.6 mm. The page describes the rotors as vented with directional vanes. It separately notes that slotted rotors are optional, so a slotted rotor should not be assumed for every configuration of this part number. The caliper, rotor, pad and line details above reflect the specifications published for 140-14928-R and help distinguish this kit from a generic replacement-brake listing.
Applications / Compatibility
This kit is specified for the front position and uses vehicle-specific bolt-on mounting. The page describes performance street driving, autocross and track-day events as intended uses, but it does not identify compatible vehicle makes, models or years. It also states that the kit will not fit most factory wheels. Check the exact vehicle application and wheel clearance before purchase, including inner-barrel and spoke clearance where relevant to the wheel being used.
What is included
- Two forged Dynapro 6-piston calipers
- Two 12.19-inch vented rotors
- One set of Polymatrix brake pads
- Two stainless steel brake lines
- Mounting brackets and hardware
- Detailed installation instructions
Buyer guidance
Use part number 140-14928-R when confirming the intended vehicle application. Review wheel clearance before committing to the kit, since the page specifically cautions that most factory wheels will not fit. Ask for confirmation based on the vehicle and the wheels to be retained or installed; the product listing does not provide a model-specific application chart or a clearance template. Brake fluid is listed as not included. Wheel bearings and seals are also listed separately when needed. The page does not provide a brake-fluid quantity, so verify those vehicle-specific requirements before installation or purchase.
Fitment and ordering notes
- Confirm the exact model, part number, configuration, dimensions, and application against the information shown in this listing.
- Review the product images and listed attributes before ordering; fitment can vary by vehicle, equipment, year, and installation setup.
- Contact X Factor Motorsport for availability, fitment, product questions, or freight guidance before purchase.
