PowerStop Disc Brake Rotor P/N:AR8370
PowerStop EBR1637EVC front brake rotor for the 2017-2025 Audi A4 Allroad and other vehicles is the disc the brake pads clamp against to slow the wheel. This PowerStop brake rotor bolts on with no modifications necessary.
A worn disc brake rotor can show up as a pulsing pedal, vibration while braking, or visible grooves and rust ridges. Before you replace this rotor, rule out worn pads or a sticking caliper, since either can produce similar symptoms.
The rotor is made to original equipment specifications for fitment, weight, vane count and performance. Besides the 2017-2025 Audi A4 Allroad, the list includes the 2017-2025 Audi A4 Quattro and the 2019-2025 Audi A6 Quattro. Open the "Vehicles it fits" section to check your exact model and engine. This listing is one rotor, and both front rotors are normally replaced together; the car takes two, one on each side of the front axle.
Fit and size
Build and materials
Are these 2017-2025 Audi A4 Quattro brake rotors the right fit?
Yes. PowerStop EBR1637EVC is a front rotor for the 2017-2025 Audi A4 Quattro, and the car takes two, one on each side of the front axle.
Do PowerStop front rotors like this one come with the ABS tone ring?
No, the ABS tone ring is not included with PowerStop EBR1637EVC, a vented front rotor with a 112.00 mm bolt circle and 5 lug holes.
Are PowerStop Evolution Coated rotors coated all over?
Yes. Genuine GEOMET 360 covers the full rotor to protect against rust and corrosion, and the thin layer does not influence braking performance.
How do I tell when this front rotor is worn?
Visible grooves, rust ridges or cracks, along with a pulsing pedal or vibration while braking, can mean the rotor is worn. A shop can measure it to confirm.
What is the minimum thickness for PowerStop EBR1637EVC?
The discard thickness is 28.00 mm (1.10 in), against a nominal thickness of 29.90 mm (1.18 in). Replace the rotor once a measurement reaches the discard thickness.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.