Wilwood 1.62/1.12/1.12 FNSL6R Caliper 1.10 Rotor

SKU: WIL120-11781-P

Brake Calipers

WIL Superlite Caliper...

Wilwood

Wilwood 1.62/1.12/1.12 FNSL6R Caliper 1.10 Rotor

SKU: WIL120-11781-P

Brake Calipers

WIL Superlite Caliper...

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

We accept

Description

Wilwood Forged Superlite 6 radial mount calipers are the go-to calipers for all types sustained hard braking on dirt and asphalt ovals, as well as a wide range of off-road, rally, and road course applications.

The FSL6R calipers offer exceptional strength and reduced weight due to the stress-flow forging from premium grade aluminum alloy billet. Each caliper features closed end bridges with a radial transition down to the main body and piston bore housings. The elimination of machined steps and sharp shoulders in this critical area provides a measurable increase in overall body strength and resistance to deflection under load.

They have been redesigned with internal fluid ports that eliminate the external fluid crossover tubes. The transfer tube has been replaced with two additional bleed screw assemblies which allow differential bore models to have a left hand and right hand orientation, but no leading or trailing configuration is required.

FSL6R/ST calipers provide the pad wear performance advantages of differential bore pistons with the option for ultimate heat protection using Thermlock pistons in the ST models. Differential piston bores compensate for leading-edge mechanical loading and temperature variances across the pad face to reduce pad taper wear in sustained high-temperature applications.

Thermlock pistons in ST caliper models block heat transfer from the pads and reduce temperatures in the caliper, fluid, and seals by up to 25 percent over standard stainless steel pistons.

Wilwood Forged Superlite 6 radial mount calipers are available with either a Quick-Silver Nickel or Type III Ano (hard anodize) finish.

Part Type

Brake Calipers

Data: v4.2 - Upd: 2026-10-14 20:52:24

Specifications

Product Attributes - UPC: 889545087406
Product Attributes - Brand: Wilwood Disc Brakes
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Brake Calipers
Product Attributes - Thread Size: 1/8 in. NPT
Product Attributes - Caliper Logo: Wilwood
Product Attributes - Product Line: Wilwood Forged Superlite 6 Radial Mount Calipers
Product Attributes - Caliper Color: Polished
Product Attributes - Caliper Series: Forged Superlite 6 Radial Mount
Product Attributes - Remanufactured: No
Product Attributes - Caliper Material: Aluminum
Product Attributes - Brackets Included: No
Product Attributes - Fittings Included: No
Product Attributes - Brake Pads Included: No
Product Attributes - Fitting Attachment 1: Female threads
Product Attributes - Piston Diameter (in.): 1.620/1.120
Product Attributes - Rotor Thickness (in.): 1.100 in.
Product Attributes - Caliper Piston Quantity: Six
Product Attributes - Parking Brake Provision: No
Product Attributes - Manufacturer's Part Number: 120-11781-P

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil120-11781-P
SFX Item ID	4409382
Supplier Item Code	4409382
Manufacturer SKU	120-11781-P
Manufacturer UPC	889545087406
Alternative References	FNSL6R