Bosch 48011478 Disc Brake Rotor - Front

Bosch QuietCast Rotor for Subaru Front Brakes

The Bosch QuietCast Rotor 48011478 is a front disc brake rotor for select Subaru applications, including Subaru WRX STI and Subaru Impreza models. With a product height of 2.074803 in, this rotor is built for direct-fit front brake service where OE-style dimensions matter.

Bosch QuietCast Rotor parts are positioned as a refined brake service line for drivers who want consistent fitment and dependable braking performance. This rotor is listed for front use on 2013-2017 Subaru WRX STI with a 326mm rotor note, and on 2004-2014 Subaru Impreza front applications.

Key Features

• Part number 48011478 Bosch QuietCast Rotor
• Front disc brake rotor for Subaru brake service
• Product height: 2.074803 in
• Fits 2013-2017 Subaru WRX STI, front, 326mm rotor
• Fits 2004-2014 Subaru Impreza, front
• Cross-references OE part number 26300FE070 for the same application

Fitment Details

• Fits 2013-2017 Subaru WRX STI, front, 326mm rotor; Bosch QuietCast Rotor
• Fits 2004-2014 Subaru Impreza, front; Bosch QuietCast Rotor

What This Rotor Helps Address

• Front brake rotor wear from normal pad contact and heat cycling
• Brake pulsation related to rotor surface variation
• Reduced braking consistency from an out-of-spec front rotor
• Service replacement needs for Subaru WRX STI front brake maintenance
• Front brake refresh on Subaru Impreza models with the listed fitment

Installation Notes and Tips

Verify rotor diameter and front axle fitment before installation, especially on 2013-2017 Subaru WRX STI models with the 326mm rotor note. Confirm the hub and brake pad surfaces are clean, and inspect related brake components during service. Part number 48011478 should be matched to the vehicle’s front brake application before ordering.

Quality Assurance

Bosch QuietCast Rotor components are cataloged for OE-style fitment on the listed Subaru applications. This part cross-references OE part number 26300FE070 for the same application.