Wilwood Big Ford New Style Aero4 Rear EPB Kit - 14in Drilled Rotor - 2.50in Offset - Black
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
AERO4 Big Brake Rear Electronic Parking Brake Kit
AERO4 Big Brake Rear Electronic Parking Brake Kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. Aero4 radial mount four piston calipers, 14” two-piece rotors, and high performance BP compound pads, provide optimized and balanced braking to compliment front big brake upgrades on all types of custom, show and high performance street machines. The unique Electronic Parking Brake caliper provides a static high torque static holding power for parking without mechanical cabling. Supplied with control unit and harness assembly, it simplifies installation and use. Optional caliper finishes and rotor designs enable the builder to personalize the style and optimize brake performance for every individual application.
| Kit Summary | |
|---|---|
| Rear End Axle: | Big Ford New Style |
| Axle Offset: | 2.50 |
| Mount Type: | Radial |
| Caliper Type: | 4 - Black Powder Coat |
| Rotor Diameter: | 14.00 |
| Min Wheel Diameter Req'd*: | 18 |
| Calipers | |
|---|---|
| Left Hand - Part No: | 120-13338-BK |
| Right Hand - Part No: | 120-13338-BK |
| Type: | AERO4 |
| Finish Color: | Black Powder Coat |
| Piston Count: | 4 |
| Piston 1 Bore (in): | 1.12 |
| Piston 2 Bore (in): | 1.12 |
| Piston Area (In²): | 1.98 |
| Piston Type: | Stainless |
| Mount Type: | Radial |
| Brake Pad Plate: | 6617 |
| Brake Pad Area (In²): | 11.1 |
| Brake Pad Volume (In³): | 5.2 |
| Pad Compound: | BP-10 |
 AERO4 Caliper - Black Powder Coat 
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| Rotors | |
|---|---|
| Left Hand - Part No: | 160-8401-BK |
| Right Hand - Part No: | 160-8400-BK |
| Type: | SRP Drilled Rotor |
| Style: | SRP Drilled & Slotted |
| Surface Finish: | Black Electro Coat |
| Material: | Spec-37 Iron |
| Outside Diameter (in): | 14.00 |
| Width (in): | 1.10 |
| Vane Count: | 72 CV |
| Design Type: | SRP-BLK |
| Burnished: | No |
| Dynamically Balanced: | No |
 SRP Drilled Rotor - Spec-37 Iron - Black Electro Coat
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| Rotor Hats | |
|---|---|
| Hat - Part No: | 170-18149 |
| Type: | Big Brake Hat - Flared Bell |
| Material: | Aluminum |
| Finish Color: | Black E-Coat |
| Hat Offset Dimension (in): | 2.035 |
| Bolt Circle 1: | 6 x 5.50 |
| Bolt Circle 2: | |
| Bolt Circle 3: | |
| Stud Diameter - BC 1: | 0.520 |
| Stud Diameter - BC 2: | 0.000 |
| Stud Diameter - BC 3: | 0.000 |
 Big Brake Hat - Flared Bell - Aluminum - Black E-Coat
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