Wilwood Front 15-Inch GT Brake Conversion for BMW 128i, 135i, 323i, 325i, 328i, 330i and 335i with Black AERO6 Calipers — Selected 2006–2013 Applications

The BMW front conversion uses black AERO6 calipers, 15-inch slotted rotors and application-specific braided hoses. The listed 1 and 3 Series models have separate year, body-style and drivetrain conditions; this is not blanket BMW fitment. From Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and their components. Founded by Bill Wood in 1977, it serves street-performance, motorsport and specialized applications with master cylinders, calipers, brake rotors, valves, fittings and brake lines. All components must suit the requirements of the complete system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13919
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes
• Rotor Outside Diameter: 15.00 in; 381 mm
• Rotor Thickness: 1.25 in; 31.75 mm
• Rotor Material: Spec-37 Iron
• Surface Type: GT Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 5 x 4.72 in; 5 x 119.89 mm
• Catalog stud / mounting-hole reference: 0.520 in; 13.21 mm
• Rotor surface finish: Black Electro Coat
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset dimension: 1.550 in
• Pistons per service caliper: 6
• Service-caliper piston construction: Stainless
• Service-caliper mount: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: AERO6
• Pad compound: BP-20
• Minimum wheel guidance (clearance drawing required): 19 in; 482.6 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No

Fitment & Compatibility

Use the individual BMW 128i, 135i, 323i, 325i, 328i, 330i or 335i year and body-style entry. The 323i listing is Canadian sedan coverage, 330i coverage is 2006 sedan, and the 328i/335i entries carry specific RWD/xi exclusions. Do not extend those rows to another generation or drivetrain. DS-1074 includes hose kit 220-13646 and calls for reuse of the OE hose grommets; verify hub registration and 19-inch wheel guidance.

Listed models: 323i; 325i; 330i; 328i; 335i; 128i; 135i. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.