ATE SP25137 Disc Brake Rotor - Front

ATE Coated Front Brake Rotor for Audi and Volkswagen

The ATE Coated Single Pack Rotor SP25137 is a vented front disc brake rotor built with a full cast construction and a rust-resistant coating. It is engineered to meet or exceed North American OEM specifications for select Audi A4, Audi A4 Quattro, Audi A6, Audi A6 Quattro, Audi A8, Audi A8 Quattro, and Volkswagen Passat applications.

Key Features

• Part number SP25137
• Vented front disc brake rotor
• 312.00 mm outside diameter
• 25.00 mm nominal thickness
• Full cast metal construction
• Non-directional disc finish
• Rust-resistant coating for improved surface protection
• 5-bolt hole design

ATE Coated Rotor Line

ATE Coated Single Pack Rotors are part of ATE’s premium brake portfolio from Continental Automotive Systems. The coated rotor line focuses on first-quality materials, precise manufacturing, and corrosion protection to help maintain rotor appearance and service life in everyday driving conditions.

Detailed Description

SP25137 is a front brake rotor with a 312 mm diameter, 25 mm nominal thickness, and vented design for select European vehicles. The non-directional finish supports even pad contact during brake service, while the rust-resistant coating helps protect non-friction surfaces from corrosion. This rotor is a direct-fit option for 2002-2006 Audi A4 and Audi A4 Quattro, 2004-2005 Volkswagen Passat, 2000-2004 Audi A6 and Audi A6 Quattro, and 1997-2000 Audi A8 and Audi A8 Quattro front brake applications. SP25137 is also cross-referenced with Brembo 09.8690.1X and Raybestos Brakes 980001 for the same application.

Common Problems This Rotor Addresses

• Front brake pulsation from rotor wear or thickness variation
• Brake noise caused by uneven rotor surfaces
• Corrosion on exposed rotor areas
• Reduced braking consistency from worn front rotors
• Service replacement for rotors that no longer meet OEM dimensions

Installation Notes and Tips

Verify rotor diameter, thickness, and hub fitment before installation. Clean the friction surfaces before use to remove any protective residue, and inspect pads, calipers, and wheel bearings during brake service. This rotor is listed for front position applications only and should be matched to the vehicle’s original brake specification.

Quality Assurance

ATE brake parts are produced under Continental Automotive Systems’ OE-level engineering standards, with manufacturing processes informed by experience supplying major vehicle manufacturers. The coated rotor design reflects ATE’s focus on premium materials and corrosion protection for aftermarket brake service.