Wilwood ST FNSL4R Caliper 1.12/1.12 1.10 Rotor

SKU: WIL120-12603

Brake Calipers

WIL Superlite Caliper...

Wilwood

Wilwood ST FNSL4R Caliper 1.12/1.12 1.10 Rotor

SKU: WIL120-12603

Brake Calipers

WIL Superlite Caliper...

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

We accept

Description

FNSLR/ST forged billet calipers, with four Thermlock pistons, deliver championship proven performance with piston sizes to provide matched rear braking bias for use with the Aero6/ST or other larger piston front calipers. FNSL4R/ST calipers incorporate race technology into a radial mount body design with widespread adaptability. Including competition update options for all FNSL4R rear Big Brake kits. Thermlock pistons, high-temp seals, SRS bridge plates, and two-piece bleed screw assemblies are standard in all calipers. Four high-temp race only brake pad compounds in the 7416 pad type allow precise tuning of the brake response, friction requirements and temperature range.

Part Type

Brake Calipers

Data: v4.2 - Upd: 2026-10-13 21:10:18

Specifications

Product Attributes - UPC: 00889545085877
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 Racing
Product Attributes - Product Line: Wilwood Forged Narrow Superlite 4 Radial Mount Calipers
Product Attributes - Caliper Color: Gray/Silver
Product Attributes - Caliper Series: Forged Superlite 4 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.): 1.120
Product Attributes - Rotor Thickness (in.): 1.100 in.
Product Attributes - Caliper Piston Quantity: Four
Product Attributes - Parking Brake Provision: No
Product Attributes - Manufacturer's Part Number: 120-12603

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil120-12603
SFX Item ID	4409081
Supplier Item Code	4409081
Manufacturer SKU	120-12603
Manufacturer UPC	889545085877
Alternative References	FNSL4R