Wilwood 120-15567-SI Universal Radial Mount Billet Narrow Dynalite 4-Piston Brake Caliper

Radial Mount Billet Narrow Dynalite Brake Caliper

Wilwood's prestigious DynaLite calipers are used in every type of racing, and the latest radial mount Billet Narrow Dynalite (NDLR) series is better than ever. Starting at a mere 3.20 pounds (1.45 kg), this compact and lightweight caliper now incorporates a more rigid radial mount design. Engineered with a spacerless body specifically for .38”, .810” and 1.00” wide discs, and a central bridge bolt that increases the overall strength of the caliper and top-loading pad retention. A durable Type III (Mil-Spec) hard-anodized ceramic oxide finish further enhances caliper durability by resisting bore wear and surface abrasion.

Billet NDLR calipers can be mounted directly on studs with a 4.75" (12 cm) on-center spacing, or used with a radial mounting bracket kit in place of a tab mount caliper.

Internal dampening springs, internal fluid crossover, controlled retraction internal seals, and 3/8” cross bolts for added strength and rigidity combine to provide a consistent pedal feel from beginning to end. It uses 7816 type brake pads with many Wilwood compound options to fine-tune your driving style and track conditions. The Billet NDLR caliper is compact, lightweight, and robust, providing strong clamping force from its four stainless steel cup pistons. The bodies are fully CNC machined from solid stock, with internal fluid ports that eliminate external fluid tubes. Each caliper is equipped with two corner bleeders and external inlets at the correct location for a standard inboard mounting. The bridges are equipped with stainless steel anti-vibration wear plates. These plates reduce bridge wear and provide smooth, vibration-free pad operation. A central bolt on the bridge increases overall caliper strength and positive top-loading pad retention. All Billet NDLR calipers are designed for long service life using the .63” 16.0mm thick 7816 style brake pads. These pads are available in a variety of PolyMatrix compounds to provide the right braking torque and temperature range for any high-performance or racing application. Radial mounting bracket kits are used to install a radial mount brake caliper in place of a tab mount brake caliper. Brackets are available for Sprint and Midget Inboard and Dirt Late Model applications for various rotor diameters.

Pistons

Mounting Center (Inches)	4.75
Mounting Position
Mounting Side	Universal
Mount Type	Radial

Rotor Dimensions

Rotor Width (In.)	1.00
Rotor Diameter (In.)	12.19

Pad Dimensions

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Pad Area (in²)	6.36
Pad Volume (in³)	3

Service Rating & Material

Material	Billet Aluminum
Weight (lbs)	3.7

Colors & Finish

Color	Anodized
Finish	Type III Anodized

Mounting

Mounting Center (in.)	4.75
Mounting Position
Mounting Side	Universal
Mounting Type	Radial

Specifications

Rotor Compatibility

Rotor Width (in.)	1.00
Max Rotor Width (in.)	1.00
Min Rotor Width (in.)	0.94
Max Rotor Diameter (in.)
Min Rotor Diameter (in.)	11.75

Brake Pad Specifications

Brake Pad Type 1	7816
Brake Pad Type 2	7216
Brake Pad Type 3	N-A
Total Pad Area (in²)	6.36
Total Pad Volume (in³)	3
Mounting

Piston

Specifications

Piston Diameter 1 (in.)	1.75
Piston Diameter 2 (in.)	1.75
Piston Diameter 3 (in.)
Total Piston Area (in.²)	4.80

Mounting Specifications

Mount Type	Radial
Mount Side	Universal
Mounting Center (in.)