Wilwood Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat)
The unsurpassed braking capacity of the Forged Narrow Superlite 6R six-piston caliper serves as the base of this 12.19β big rotor kit for the popular trucks applications. FNSL6 kits are engineered application specific for simplified installation and full compatibility with OE master cylinder output and ABS functions where used. Big brake kits provide increased brake capacity and complimentary style with wheel, tire, and suspension upgrades. Optional caliper finishes and rotor designs simplify personalizing the style and braking requirements of any application.
Documents
What's Included
Wilwood's application data lists these main components for this kit:
- Calipers (140-18154, 140-18154-D): Forged Narrow Superlite 6R, 120-14540-BK / 120-14539-BK
- Calipers (140-18154-DR, 140-18154-R): Forged Narrow Superlite 6R, 120-14540-RD / 120-14539-RD
- Rotors (140-18154, 140-18154-R): Ultralite HPS 32, 12.19" x 1.1"
- Rotors (140-18154-D, 140-18154-DR): SRP Drilled Rotor, 12.19" x 1.1", 160-12205-BK / 160-12204-BK
- Pads: pad type 7416, BP-10 compound, 150-8855K
Specifications
Part Numbers in This Listing
| Part # | Option | Wilwood description | Weight | UPC |
|---|---|---|---|---|
| 140-18154 | Black / Plain Face | KIT,FRONT,FNSL6R,BLAZER 1971-91,12.19 ROTOR,GT,6 LUG | 48 lb | 889545124354 |
| 140-18154-D | Black / Drilled & Slotted | KIT,FRONT,FNSL6R,BLAZER 1971-91,12.19 ROTOR,6 LUG,SRP | 48 lb | 889545124378 |
| 140-18154-DR | Red / Drilled & Slotted | KIT,FRONT,FNSL6R,BLAZER 1971-91,12.19 ROTOR,6 LUG,SRP,RED | 48 lb | 889545124385 |
| 140-18154-R | Red / Plain Face | KIT,FRONT,FNSL6R,BLAZER 1971-91,12.19 ROTOR,GT,6 LUG,RED | 48 lb | 889545124392 |
Fitment
Wilwood's application data for this kit.
| Minimum wheel diameter | 15" |
| Position | Front Kit |
| Years | Make | Model | Details |
|---|---|---|---|
| 1971-1974, 1987-1991 | Chevrolet | Blazer | 4 x 4 |
| 1975-1986 | Chevrolet | K10 | 4 x 4 |
| 1975-1986 | Chevrolet | K10 Suburban | 4 x 4 |
| 1975-1986 | Chevrolet | K5 Blazer | 4 x 4 |
| 1971-1991 | GMC | Jimmy | 4 x 4 |
| 1975-1978 | GMC | K15 Suburban | 4 x 4 |
| 1971-1974 | GMC | K15/K1500 Pickup | 4 x 4 |
| 1971-1974 | GMC | K15/K1500 Suburban | 4 x 4 |
| 1980-1986 | GMC | K1500 Suburban | 4 x 4 |
| 1979 | GMC | K1500 Suburban | 4 x 4 |
| 1979-1986 | GMC | K1500 | 4 x 4 |
| 1975-1978 | GMC | K15 | 4 x 4 |
Caution: A 15/16β bore master cylinder is recommended for proper brake function when installing this brake kit with the factory brake pedal and vacuum booster.
Using the OE 1.12β bore master cylinder is not recommended and will require very high pedal effort to stop the vehicle.
Parts in This Kit and Recommended Lines
Frequently Asked Questions
Tap a question to see the answer.
What vehicles does this kit fit?
See the Fitment section above for Wilwood's application list for this kit.
What is the smallest wheel this kit fits?
Wilwood lists a minimum wheel diameter of 15".
Which wheel bolt pattern does it use?
Wilwood lists 6 x 5.5".
What replacement pads does it take?
Pad type 7416. The kit is listed with BP-10 pads, 150-8855K.
Are installation instructions available?
Yes. Wilwood's installation instructions are in the Documents section above.
Not sure this is the right kit for your vehicle? Send us a message.
Always confirm your vehicle, spindles and wheel clearance before you order.
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.