Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This GTO front package supplies drilled and slotted 14.00-inch rotors with black six-piston calipers. Included hydraulic hoses complete the caliper connections, with minor hard-line repositioning described in the installation guide. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Founded in 1977 by Bill Wood, its range covers calipers, brake rotors, master cylinders, valves, fittings and brake lines. Individual parts must match the complete brake system and its operating requirements.
Technical Details
Calipers and friction components
- Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper
- Caliper finish: Black Powder Coat
- Body construction: Forged aluminum
- Piston material: stainless
- Caliper mounting: radial
- Hydraulic inlet: 1/8-27 NPT
- Included pad compound: BP-10
- Listed piston bore sizes: 1.62 / 1.12 / 1.12 in
Kit contents and separate parts
- Manufacturer part number: 140-9296-D
- Supply: one kit with brake components for both sides of the front axle
- Mounting hardware: included
- Hubs: not included
- Spindles, master cylinder and brake booster: not included
- Hydraulic hoses: included; 220-14177 hose-and-fitting kit
- Included hydraulic hose kit: 220-14177, with the fittings specified in DS-537.
Rotors and mounting dimensions
- Rotors: 14.00 in; 355.6 mm diameter x 1.25 in; 31.75 mm thick; vented Spec-37 Iron
- Friction faces: SRP Drilled & Slotted
- Rotor finish: Black Electro Coat
- Internal vanes: 72 curved
- Hats: aluminum; Black E-Coat; 1.000-inch hat offset
- Rotor/hat wheel-stud clearance patterns: 5 x 4.72 in; 5 x 119.89 mm
- Hat wheel-stud clearance holes: 0.500 in, corresponding to the listed hat patterns
Fitment & Compatibility
For the 2004–2006 Pontiac GTO applications shown in the table below, using the original front spindles and hubs. The aluminum hats carry a 1.000-inch offset and clearance for the factory five-lug pattern. DS-537 requires minor hard-line repositioning to align the new fittings. This kit includes the 220-14177 hose package; it should not be ordered as though flexlines were absent. Verify the wheel-clearance drawing and evaluate front-to-rear balance after installation. Nominal minimum wheel diameter: 18 in; 457.2 mm. Compare the actual wheel barrel and spokes with the linked clearance drawing; diameter alone does not establish fit.
Installation documents
WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Our team at PMB Performance draws on 20+ years of brake and restoration work. We can help check the mounting requirements and component choices for your build.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 2004-2006 | Pontiac | GTO | All | Disc | Disc | Front Kit | 1, 2, 3 |
Application Notes
- 14" Rotor
- Line kit included (manufacturer): 220-14177 (20.00 in)
- Front line-kit reference: 220-14177
