Narrow Dynapro 4 Piston Radial Mount Caliper – Part No: 120-14091-RD
Call (805) 388-1188
Narrow Dynapro Radial Mount
Prod #: 120-14091-RD
Price: $374.16
Narrow Dynapro Radial Mount - Product Summary
Caliper No: 120-14091-RD
Narrow Dynapro Radial Mount

Pistons
Piston Count 4
Piston Area (in²) 1.98
Piston Type Stainless
Dust Boot No
Rotor Dimensions
Rotor Width (in) 0.81
Rotor Diameter(in) 12.88
Pad Dimensions
Pad Area (in²) 6.36
Pad Volume (in³) 2.1
Duty Rating & Material
Material Billet Aluminium
Weight(Lbs) 4.0
Colors & Finish
Color Red
Finish Red Powder Coat

Mounting
Mount Center(in) 4.75
Mount Position
Mount Side Universal
Mount Type Radial
UPC Number
UPC 889545073744
Product Documents
Product Data Sheet

Installation Instructions


WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Applicable to Brake Pads Only

120-14091-RD - Product Description

Narrow Dynapro Radial Mount

Wilwood Narrow Dynapro four piston radial mount calipers combine the versatility of radial mounting with a sleek profile, superior strength, and extreme durability in adverse conditions. With an overall weight as light as 3.58 pounds, the Dynapro has become a favored choice for a broad range of sports, rally, and off-road driving applications. Narrow Dynapro four piston radial mount calipers combine pure race technology with a new generation of Wilwood performance enhancements.

The strength of the Dynapro is a combination of process and design. The process of stess-flow forging re-aligns the internal grain structure of the metal to flow within the contour of the caliper body. This produces a part with superior strength over machined block billet parts or castings. The FEA generated body design 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 the resistance against deflection and body separation under high load. Structural deflection and volume displacement testing have proven the efficiency of this innovative design. The bottom line is a firm pedal with outstanding stopping power.

The Narrow DynaPro fits rotors up to 12.19” and features heavy wall stainless pistons to provide additional protection against corrosion and heat transfer from the pads. All Dyanpro calipers can also be optioned with Thermlock pistons for maximum thermal protection in sustained high-heat applications. The Dynapro incorporates other exclusive Wilwood performance enhancements. Stainless SRS bridge plates eliminate caliper bridge wear from pad gouging while dampening noise and vibration during engagement. Internal fluid passages eliminate the need for external crossover tubes, and four corner bleed screws allow effective gas evacuation regardless of the mounting location.



Product Specifications

Rotor Compatibility
Rotor Width (in) 0.81
Maximum Rotor Width (in) 0.86
Minimum Rotor Width (in) 0.75
Maximum Rotor Diameter(in) 12.88
Minimum Rotor Diameter(in) 11.75

Brake Pad Specifications
Brake Pad Type 1 7812
Brake Pad Type 2 N-A
Brake Pad Type 3 N-A
Total Pad Area (in²) 6.36
Total Pad Volume (in³) 2.1
Mount
Piston Specifications
Piston 1 Bore (in) 1.12
Piston 2 Bore (in) 1.12
Piston 3 Bore (in)
Total Piston Area (in²) 1.98

Mounting Specifications
Mount Type Radial
Mount Side Universal
Mount Center(in) 4.75
Mount Hole Size(in) 0.39
Mount Height(in) 1.61
Inlet Thread Size 1/8-27 NPT
Pad Dimensions & Part Numbers
Pad Dimensions for the Narrow Dynapro Radial Mount Pad Dimensions for the Narrow Dynapro Radial Mount Zoom Image
Axle Set P/N
Pad Type
Compound
Non-Bedded Pads - by Compounds
7812
BP-10
7812
BP-20
7812
BP-28
7812
BP-30
7812
BP-35
7812
BP-40
7812
BP-45
7812
BP-Q
7812
PolyMatrix B
Mount Dimensions & Part Numbers

Dimensions for the Narrow Dynapro Radial Mount Dimensions for the Narrow Dynapro Radial Mount Zoom Image

Additional Notes


Parts & Accessories

O-Ring Kit 130-2579
Replacement Dust Boot N-A
Replacement Piston 1 200-8439
Replacement Piston 2 200-8439
Replacement Piston 3 N-A
Replacement Piston 4 N-A
Cross-Over O-Ring Kit 130-10540
Bridge Bolt Kit 230-10118
Wear Plate L/H 300-5876
Wear Plate R/H 300-5876
Pad Retainer 300-9636
Bleed Screw Kit 220-0627
Self Bleeder Tube N-A
Cross-Over Tube N-A
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Version: 3.05 June 23, 2023