Wilwood Dynalite Internal black caliper, 0.81-inch rotor width, 1.75-inch bores: angled logo side and open pad channel

Wilwood Forged Dynalite Internal Brake Caliper for 0.81-Inch-wide Rotor, 5.25-Inch Lug Mount, Black

SKU: 120-13844-BK

$260.85 Sale
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Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

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Product details

Four 1.75-inch stainless pistons define the hydraulic configuration of this black Wilwood Forged Dynalite Internal. It is the nominal 0.81-inch rotor-width version, with a forged aluminum body and 5.25-inch lug centers. Select it by the complete rotor and bracket geometry. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, Wilwood designs and manufactures disc brake systems and parts for motorsport, street-performance and specialized applications, from calipers and rotors to master cylinders, valves, fittings and brake lines.

This four-piston Dynalite uses internal fluid transfer in a spacerless body. Its 5.25-inch mounting pattern is only one compatibility dimension: rotor position, body clearance and hydraulic area also need to agree.

Technical Details

  • Manufacturer part number: 120-13844-BK
  • Component: Wilwood Forged Dynalite Internal; one caliper
  • Mounting: universal side configuration; Lug; 5.25-inch centers; 0.39-inch mounting holes
  • Piston arrangement: 4 pistons; 1.75-inch bores; stainless steel
  • Hydraulic piston area: 4.80 square inches, as specified by Wilwood
  • Rotor width: 0.81-inch nominal; 0.75–0.83-inch permitted range
  • Rotor diameter range: 10.00–13.06 inches
  • Pad shape: Wilwood type 7112; compound selected separately
  • Body and finish: Forged aluminum; Black Powder Coat
  • Fluid inlet: 1/8-27 NPT
  • Dust boots: No
  • Mount height: 2.03 inches

Fitment & Compatibility

Confirm rotor diameter as well as thickness, and allow for pad and caliper clearance inside the wheel. The mount pattern is a dimensional requirement rather than a vehicle fitment guarantee.

This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.

Ask PMB Performance for help comparing this caliper with your existing assembly. Our over 20 years of experience are most useful when you provide rotor size, mounting details and the current piston configuration.