Brembo 09.D174.33 Disc Brake Rotor - Front

Brand Brembo 09.D174.33
Position Front
Material High carbon cast iron
Discard Thickness 1.28
Discard Thickness 32.4
Nominal Thickness 34
Construction Composite
Rust Resistant Coating Yes
Overall Height 2.36
Overall Height 60
Outside Diameter 14.57
Outside Diameter 370
Grade Type Premium
ABS Tone Ring Included No
Surface Type X drilled
Weight 13.3
Solid Or Vented Type Rotor Vented
Center Hole Diameter 2.56
Center Hole Diameter 65
Stud/Lug Hole Quantity 5
Product line PRIME
Fits Audi · 2 vehicles

Premium grade. Brembo PRIME rotor with a rust-resistant coating for lasting performance.

Vented design. Helps air flow through the rotor for more consistent braking.

X-drilled surface. Improves heat management and adds a performance look.

Cross-references 8V0 615 301 S, 100338370 and BZ9553 for the same application. See all 3.

$341.34Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $341.34
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Brembo PRIME Front Brake Rotor for Audi RS3

The Brembo PRIME 09.D174.33 is a front disc brake rotor built for 2017-2020 Audi RS3 applications. It combines high carbon cast iron construction with a vented, X-drilled surface and rust-resistant coating for consistent braking performance and corrosion protection.

For drivers searching for a front brake rotor for Audi RS3 2019-2020 or a Brembo PRIME rotor for Audi RS3 2017-2018, this part number 09.D174.33 matches the confirmed fitment and OE-style dimensions for the listed vehicles.

Key Features

  • Brand: Brembo PRIME
  • Part number: 09.D174.33
  • Front disc brake rotor for Audi RS3
  • High carbon cast iron material for thermal stability
  • Vented rotor design
  • X-drilled surface type
  • Rust-resistant coating
  • Premium grade construction
  • 5-lug pattern
  • Outside diameter: 370 mm (14.57 in)
  • Nominal thickness: 34 mm
  • Discard thickness: 32.4 mm (1.28 in)
  • Overall height: 60 mm (2.36 in)
  • Center hole diameter: 65 mm (2.56 in)

Product Details

Brembo PRIME brake rotors are positioned as a premium replacement line with OE-focused dimensions and materials. The 09.D174.33 rotor uses high carbon cast iron and a composite construction to support stable braking characteristics under repeated heat cycles. Its vented design helps manage heat, while the X-drilled surface and rust-resistant coating add performance-oriented and durability-focused features for front axle use.

This rotor cross-references OE and aftermarket numbers including 8V0 615 301 S and 100338370 for the same application. It is a direct fit for 2019-2020 Audi RS3, front, and 2017-2018 Audi RS3, front, including PRIME Dual Cast coverage noted for the earlier application.

What This Rotor Helps Address

  • Brake vibration caused by worn or uneven rotor surfaces
  • Reduced stopping consistency from heat buildup in front braking
  • Corrosion on exposed rotor surfaces
  • Rotor wear that has reached discard thickness
  • Loss of braking feel from an aging front disc brake rotor

Installation Notes

Verify rotor diameter, center hole diameter, lug count, and thickness before installation. This rotor is for front position use on the listed Audi RS3 applications and does not include an ABS tone ring. Always inspect pads, caliper condition, and hub surface before installing a new rotor to ensure proper seating and braking performance.

Quality Assurance

Brembo PRIME rotors are engineered as premium brake components with OE-style fitment targets and corrosion protection. The high carbon cast iron construction and vented design support consistent performance for the specified Audi RS3 applications.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2020AudiRS3FrontPRIME
2019AudiRS3FrontPRIME
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
8V0 615 301 S100338370BZ9553