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Product details
This Wilwood Superlite 6R kit is a front 14-inch brake upgrade for Toyota Tacoma/4Runner/FJ Cruiser and Lexus GX. The larger 14-inch Spec-37 rotors retain the application-specific six-lug hats and supplied braided lines. The kit belongs to Wilwood Engineering's range of disc brake systems and components for motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977; it is based in Camarillo, California, and produces calipers, rotors, master cylinders, valves, fittings and brake lines for complete brake-system planning.
Technical Details
- Manufacturer part number: 140-14578-R.
- Match 6 X 5.5 in; 6 X 139.7 mm at the wheel mounting pattern(s) interface, with 0.520 in; 13.21 mm as the nominal hat stud-hole clearance diameter.
- The package excludes wheel hubs. Check the retained hubs against the specified mounting interface.
- Spec-37 Iron forms the vented rotors. Each disc has a gt slotted face, an outside diameter of 14.00 in; 355.6 mm and thickness of 1.10 in; 27.94 mm.
- Black E-Coat treatment covers the separate aluminum rotor hats.
- Red Powder Coat Superlite 6R calipers are supplied. Their forged aluminum bodies use the radial mounting arrangement with 6 stainless pistons in each caliper.
- Piston sizes listed by Wilwood are 1.75, 1.25, 1.25 inches, with BP-10 friction material in this kit.
- Hydraulic fitting interface on each caliper: 1/8-27 NPT.
- Published wheel minimum is 18 in; 457.2 mm, subject to the required inside-profile check. Rotor diameter is a separate measurement.
- The kit includes 220-14618 braided hydraulic lines, listed at 20.00 in. Verify the chassis connection on the actual application.
- Application-specific mounting hardware is supplied. Provide or retain the correct spindle, master cylinder and brake booster separately.
- Package quantity is one application-specific brake kit.
Fitment & Compatibility
For the listed six-lug Tacoma 4 x 2/4 x 4 trims, 4Runner, FJ Cruiser, GX470 and GX460, verify the exact year and submodel rather than assuming all Toyota trucks share the hub. Dust-shield cutting is required by DS-1232; inspect full steering and suspension clearance. Models covered: GX470, 4Runner, Tacoma, FJ Cruiser and GX460. Use the complete application table at the bottom for the precise year, submodel, brake option and note attached to each row.
For fitment assistance, provide PMB Performance with the existing brake configuration and measured mounting/wheel details. Our 20+ years of parts experience support checking the complete assembly rather than relying only on a model name.
Manufacturer Warning
Applicable to the included brake pads only: Wilwood warns of exposure to arsenic, cadmium, hexavalent chromium compounds, lead, nickel, cobalt and antimony trioxide, chemicals known to California to cause cancer or reproductive harm. More information: www.P65Warnings.ca.gov.
| Years | Make | Model | Submodel | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|---|
| 2003-2009 | Lexus | GX470 | All | Disc | Disc | Front Kit | 1, 2 | |
| 2003-2014 | Toyota | 4Runner | All | Disc | Disc | Front Kit | 1, 2 | |
| 2005-2017 | Toyota | Tacoma | 4 x 2 (6 Lug Wheel) | Disc | Drum | Front Kit | 1, 2 | |
| 2005-2017 | Toyota | Tacoma | 4 x 4 (6 Lug Wheel) | Disc | Drum | Front Kit | 1, 2 | |
| 2007-2014 | Toyota | FJ Cruiser | All | Disc | Disc | Front Kit | 1, 2 | |
| 2010-2014 | Lexus | GX460 | All | Disc | Disc | Front Kit | 1, 2 | |
| 2018 | Toyota | Tacoma | Base | Base | Disc | Drum | Front Kit | 1, 2 |
| 2018-2023 | Toyota | Tacoma | Limited | Limited | Disc | Drum | Front Kit | 1, 2 |
| 2018-2023 | Toyota | Tacoma | SR | SR | Disc | Drum | Front Kit | 1, 2 |
| 2018-2023 | Toyota | Tacoma | SR5 | SR5 | Disc | Drum | Front Kit | 1, 2 |
| 2018-2023 | Toyota | Tacoma | TRD Off-Road | TRD Off-Road | Disc | Drum | Front Kit | 1, 2 |
| 2018-2023 | Toyota | Tacoma | TRD Pro | TRD Pro | Disc | Drum | Front Kit | 1, 2 |
| 2018-2023 | Toyota | Tacoma | TRD Sport | TRD Sport | Disc | Drum | Front Kit | 1, 2 |
| 2019 | Toyota | Tacoma | SR+ | SR+ | Disc | Drum | Front Kit | 1, 2 |
| 2021-2022 | Toyota | Tacoma | Nightshade | Nightshade | Disc | Drum | Front Kit | 1, 2 |
| 2021 | Toyota | Tacoma | Trail | Trail | Disc | Drum | Front Kit | 1, 2 |