Billet Superlite 6 Lug Mount
Caliper Highlights:

The billet SL6 series integrates "Big Brake" style and Wilwood's latest technology into the traditional 3.50" centered lug mount Superlite caliper category. Each caliper is precision CNC machined from high strength billet into three specialized configurations that cover a broad range of competition and sports driving applications.

Mounting Dimensions

Superlite 6 Caliper Pads

360° Image of SL6 Caliper

The key to the superior performance of the SL6 comes from the extremely durable and efficient body design. It is the product of FEA computer solid modeling and stress analysis technology. Full length stiffening ribs and a reinforced radial transition from the piston bore housings to the closed end bridges have produced the strongest caliper bodies ever built. When compared to open bridge calipers that use tube or stand spacers between the body halves, the closed end briddge design is measurable stronger with less separation or deflection under load. Additional strength and resistance to deflection comes from the four high-strength steel end bridge bolts. A fifth center bridge bolt provides even more overall strength and easy access to the pads without the need to remove the caliper from the mount.

A unique six-piston differential bore configuration provides balanced pad loading for even pad wear in sustained high heat environments. The standard SL6 calipers feature one-piece stainless steel pistons. Stainless is used for its slow heat transfer properties and high resistance to corrosion. The SL6/ST models feature Wilwood's exclusive Thermlock^® pistons. This multi-part piston design creates a highly efficient thermal barrier to further reduce heat transfer from the pads to caliper body, seals, and fluid. Cooler temperatures translate to longer service life and less chance for heat induced pedal fade.

In addition, each SL-6 is equipped with SRS bridge plates. SRS plates eliminate all bridge wear caused by pad gauging and extend the service life of the caliper. The spring-loading action of the SRS plates also eliminates pad rattle and dampens the harmonic vibrations that contribute to pad squeal. Two piece bleed screws and dampened fluid tubes are recess mounted to shield them from track debris and other potential damage sources. High temperature, square faced bore seals provide the largest possible sealing area and controlled piston retraction on release. The full range of PolyMatrix pad compounds is available to match the brake response and heat range of any competition or sports driving application.

Billet SL6 and SL6/ST
Calipers in this group feature a full width reinforced rib outboard body for maximum strength when caliper to hub or caliper to wheel clearance is not an issue. These calipers are primarily used for asphalt stock cars, road racing, and other competition applications with small 5 x 5 or OE type lug patterns. The caliper bridge radius will clear rotors from 11.75" to 13.00" in overall diameter. Each caliper in this group uses the 7420 type 20mm thick pads.

Calipers in this group feature a reduced width outboard body to provide additional clearance between the caliper face and the wheel or hub. These calipers were originally built for use with wide 5 hubs, but have found their way to other close fit wheel and hub applications. The caliper bridge radius will clear rotors from 11.75" to 13.00" in overall diameter. Each caliper in this group uses 7420 type 20 mm thick pads.

Narrow Body Billet Superlite 6 - Thin Pad

Calipers in this group have the narrowest profile in the entire SL6 category. They are designed for use with 16 mm thick 7416 type pads over 1.10" width rotors between 11.75" and 13.00" in diameter. These calipers are primarily used in OE performance "Big Brake" conversion kits and other custom applications with extreme space limitations. Fully polished calipers are also available for custom show are available for custom show car applications.

Thermlock T1 Short Track Piston:

Wilwood's Thermlock^® T1 pistons incorporate a stainless steel shield and coated aluminum shell configuration to provide a highly efficient thermal barrier between the brake pads and the caliper body, seals, and fluid. Lower operating temperatures eliminate seal crystallization and localized fluid boiling while providing longer caliper body and piston bores. Thermlock^® T1 pistons are standard equipment in all "ST" designated calipers. They can also be ordered separately to update any existing stainles steel piston equipped caliper built for 7420 typed 20mm pads. Thermlock^® T1 pistons are not compatible with the special narrow body calipers built for use with the 7416 type 16mm pads.

Diameter

Part Number

1.62" (41,1 mm)

200-7553

1.12" (28,4 mm)

200-7556

Differential Bore Size

Disc Width

Front Mount
RH - Part Number - LH

Rear Mount
RH - Part Number - LH

1.62/1.12/1.12" - 41,1/28,4/28,4 mm

1.25"  31,8 mm

120-5960-FS    120-5961-FS

120-5960-RS    120-5961-RS

1.62/1.12/1.12" - 41,1/28,4/28,4 mm

1.00"  25,4 mm

120-5958-FS    120-5959-FS

120-5958-RS    120-5959-RS

1.62/1.12/1.12" - 41,1/28,4/28,4 mm

  .81"  20,6 mm

120-5956-FS    120-5957-FS

120-5956-RS    120-5957-RS

Differential Bore Size

Disc Width

Front Mount
RH - Part Number - LH

Rear Mount
RH - Part Number - LH

1.62/1.12/1.12" - 41,1/28,4/28,4 mm

1.25"   31,8 mm

 120-6094-FS    120-6095-FS

 120-6094-RS    120-6095-RS

1.62/1.12/1.12" - 41,1/28,4/28,4 mm

1.25"   31,8 mm

    ------                   ------

     ------             120-6199-SI

1.62/1.12/1.12" - 41,1/28,4/28,4 mm

  .81"   20,6 mm

    ------                   ------

     ------             120-6198-SI

Differential Bore Size

Disc Width

Front Mount
RH - Part Number - LH

Rear Mount
RH - Part Number - LH

1.68/1.12/1.12" - 41,1/28,4/28,4 mm

1.25"    31,8 mm

120-6584-FS   120-6585-FS

 120-6584-RS   120-6585-RS

Differential Bore Size

Disc Width

Front Mount
RH - Part Number - LH

Rear Mount
RH - Part Number - LH

1.68/1.12/1.12" - 41,1/28,4/28,4 mm

1.25"    31,8 mm

120-6387-FS   120-6388-FS

 120-6387-RS   120-6388-RS

Differential Bore Size

Disc Width

Front Mount
RH - Part Number - LH

Rear Mount
RH - Part Number - LH

1.68/1.12/1.12" - 41,1/28,4/28,4 mm

1.10"    27,9 mm

120-7228-FS   120-7229-FS

 120-7228-RS   120-7229-RS

Narrow Body SL6 for 16mm Pads - Polished

Differential Bore Size

Disc Width

Front Mount
RH - Part Number - LH

Rear Mount
RH - Part Number - LH

1.68/1.12/1.12" - 41,1/28,4/28,4 mm

1.10"    27,9 mm

120-7259-FSP  120-7260-FSP

120-7259-RSP  120-7260-RSP