Description
Wilwood Caliper-Forged Dynalite-Red 1.38in Pistons .81in Disc
The Forged Billet Dynalite Internal is the next generation enhancement of the venerable Forged Dynalite series calipers. Designed with a single split bridge and spacer less design to enhance strength and appearance. These latest applied developments and innovations in caliper design and manufacturing processes have resulted in substantial improvements in strength and performance over all comparable models. This new spacer-less design of the Forged Dynalite series of calipers, makes this the stiffest and most visual pleasing design so far.
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:05:20
Features
Note for Pistons, Rings, Rotors, Rods and engine internals
Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.
(keyword: pistons)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Description: | CALIPER,FDLI,1.38,.81 ROTOR,RED |
| Part Number: | wil120-13839-RD |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Wilwood, Wilwood Disc Brakes |
| StreetFX SKU | wil120-13839-RD |
| SFX Item ID | 4406142 |
| Accounting SKU | wil-120-13839-RD |
| Manufacturer SKU | 120-13839-RD |
| Manufacturer UPC | 889545070873 |
| Alternative References | WIL-120-13839-RD |
Brake Caliper, Forged Dynalite Internal, Aluminum, Red Powdercoated, 4-Piston, Universal, Each
Wilwood Forged Billet Dynalite Internal brake calipers are the next generation enhancement of the venerable Forged Dynalite Series calipers. The process of stress-flow forging re-aligns the metal's grain structure within the contour of the caliper's body. This removes the breaks and interruptions to the internal grain structure that occur when machining a straight block billet. The FEA-generated radial transition design eliminates steps and shoulders in the area between the piston housing body and the caliper bridges. Incorporating a radius in this transition area substantially increases resistance to deflection and caliper separation under load. Structural deflection and volume displacement tests have proven the Forged Billet Dynalite Internal to outperform all existing styles in this caliper class. Order the replacement model designed for your caliper application.
| Product Attributes | |
|---|---|
| UPC | 889545070873 |
| Brand | Wilwood Disc Brakes |
| Quantity | Sold individually. |
| Part Type | Brake Calipers |
| Thread Size | 1/8 in. NPT |
| Caliper Logo | Wilwood |
| Product Line | Wilwood Forged Billet Dynalite Internal Brake Calipers |
| Caliper Color | Red |
| Caliper Series | Forged Billet Dynalite Internal |
| Remanufactured | No |
| Caliper Material | Aluminum |
| Brackets Included | No |
| Fittings Included | No |
| Brake Pads Included | No |
| Fitting Attachment 1 | Female threads |
| Piston Diameter (in.) | 1.380 |
| Rotor Thickness (in.) | 0.810 in. |
| Caliper Piston Quantity | Four |
| Parking Brake Provision | No |
| Manufacturer's Part Number | 120-13839-RD |
Compatibility
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