Wilwood Forged Narrow Superlite 4 Radial Mount - Manual

4700 Calle Bolero • Camarillo, CA 93012 • www.wilwood.com • Sales: (805) 388-1188 • E-mail Tech Assistance: [email protected]
256 REV DATE: 01-10-12
FORGED NARROW SUPERLITE
RADIAL MOUNT 6R/4R CALIPERS
Caliper Highlights:
The machined billet narrow body Superlite
calipers have been prominent for many years
throughout the Wilwood Brake Kit product line,
and very well known in the motorsports
aftermarket. Wilwood’s continual development
in applied stress flow forging technology
brings a new level of design, strength, and
durability to this very popular caliper group. The
forged FNSL6R six-piston and FNSL4R four-piston
calipers are now the strongest, most durable styled
performance radial mount models ever offered in this popular
intermediate size caliper group.
The application of stress flow forging technology adds integral strength by realigning the grain structure of the billet
alloy within the flow and contour of the body. Simply stated, this process produces the strongest and most efficient
aluminum caliper bodies that can be built.
In addition to the structural improvements from the forging process, the FNSL6R and 4R calipers have also taken on
the style and robust appearance of their bigger brothers in the W6AR and W4AR caliper groups. All mounting
dimensions and the 7416 type pad applications remain the same as the previous BNSL series calipers, so making
upgrades is a simple bolt-on.
The popular FNSL6R and 4R caliper models used in most big brake upgrade kits feature Wilwood’s signature logo
and standard black or red gloss powder coat. Custom powder coat colors, and Wilwood’s new custom Quick-Silver
nickel plate finish, are also available on a custom order basis.
ORDERING INFORMATION:
BORE SIZE DISC WIDTH MOUNT PART NUMBER
6 Piston
1.62/1.12/1.12” 41,1/28,4/28,4 mm 1.25” 31,8 mm Right Hand 120-11778-BK (1)
1.62/1.12/1.12” 41,1/28,4/28,4 mm 1.25” 31,8 mm Left Hand 120-11779-BK (1)
1.62/1.12/1.12” 41,1/28,4/28,4 mm 1.10” 27,9 mm Right Hand 120-11780-BK (1)
1.62/1.12/1.12” 41,1/28,4/28,4 mm 1.10” 27,9 mm Left Hand 120-11781-BK (1)
1.38/1.12/1.12” 35,1/28,4/28,4 mm 1.10” 27,9 mm Right Hand 120-12002-BK (1)
1.38/1.12/1.12” 35,1/28,4/28,4 mm 1.10” 27,9 mm Left Hand 120-12003-BK (1)
4 Piston
1.75/1.75” 44,5/44/5 mm 1.10” 27,9 mm R/L 120-11784-BK (1)
1.25/1.25” 31,8/31,8 mm 1.10” 27,9 mm R/L 120-11783-BK (1)
1.12/1.12” 28,4/28,4 mm 1.10” 27,9 mm R/L 120-11782-BK (1)
1.12/1.12” 28,4/28,4 mm 0.81” 20,6 mm R/L 120-11876-BK (1)
Note: (1) Calipers come standard in black, for red remove -BK and replace with -RD at end of part number