Wilwood 120-14698 Dynapro DS 4-Piston Universal Radial Brake Caliper, Black.

Dynapro Radial Mount Dust-Sealed Brake Caliper

Dynapro Radial Mount Dust-Sealed (DPR-DS) four-piston calipers are an example of Wilwood’s continuous improvement and upgrade processes. They combine pure racing technology with a new generation of Wilwood performance enhancements. The Dynapro-DS combines the versatility of radial mounting with a sleek profile, superior strength, and extreme durability in adverse conditions. The addition of dust wiper seals allows this caliper to be used in locations that require an environmental sealing method.

With an overall weight of only 3.58 pounds, the Dynapro series of calipers has become the preferred choice for a wide range of sport driving, rally, and off-road applications. The Dynapro’s strength is in the combination of process and design. The stress-flow forging process realigns the internal grain structure of the metal to flow within the contour of the caliper body. This produces a component with superior strength compared to machined from billet or cast parts. The body design, generated through Finite Element Analysis (FEA), features a radial transition between the piston bores and caliper bridges. This eliminates machined steps and shoulders in this critical strength area and substantially increases resistance to deflection and body separation under high loads. Structural deflection and volume displacement testing have proven the effectiveness of this innovative design. In short, a firm pedal with exceptional stopping power. The Dynapro is available in three configurations. Standard calipers for discs up to 12.19” feature dust-sealed stainless steel pistons for maximum protection against track or road grime in medium to high-temperature applications. A long-radius version is available for discs up to 13.00”. Race models use Thermlock insulated pistons for additional protection from pad heat transfer. All Dynapro calipers can also be fitted with Thermlock pistons for maximum thermal protection in sustained high-temperature applications. Dust Boot Yes

Rotor Dimensions

Rotor Width (in)	0.50
Rotor Diameter (in)	12.19

Pad Dimensions

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

Service Rating and Material

Material	Forged Aluminum
Weight (lbs)	4.3

Colors & Finish

Color	Black
Finish	Black Powder Coat

Mounting

Mounting Center (in)	5.98
Mounting Position
Mount Side	Universal
Mount Type	Radial

Specifications

Rotor Compatibility

Rotor Width (in)	0.50
Max Rotor Width (in)	0.50
Min Rotor Width (in)	0.38
Max Rotor Diameter (in)	12.19
Min Rotor Diameter (in)	10.75

Brake Pad Specifications

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

Piston Specifications

Piston Bore 1 (in)	1.25
Piston Bore 2 (in)	1.25
Piston Bore 3 (in)
Total Piston Area (in²)	2.46

Mounting Specifications

Radial

Mount Side	Universal
Mount Center (in)	5.98
Mounting Hole Size (in)	0.39
Mounting Height (in)	1.61
Inlet Thread Size	1/8-27 NPT