Description
Wilwood Caliper-Dynapro 5.25in Mount 1.38in Pistons .81in Disc
The DynaPro Lug Mount (DP) forged billet caliper represents the newest generation of calipers available as an upgrade or replacement for applications previously using the long-standing Dynalite model series. DP calipers combine pure race technology with several new exclusive Wilwood performance enhancements. A sleek profile with superior strength and a fully detail machined finish provide the performance and looks for competition or show.
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 10:17:02
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
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Wilwood, Wilwood Disc Brakes |
| StreetFX SKU | wil120-9703-SI |
| SFX Item ID | 4406161 |
| Accounting SKU | wil-120-9703-SI |
| Manufacturer SKU | 120-9703-SI |
| Manufacturer UPC | 889545007282 |
| Alternative References | 120-9703-SI, WIL-120-9703-SI |
Brake Caliper, Billet DynaPro, Aluminum, Gray Anodized, 4-piston, Each
These billet DynaPro calipers combine pure race technology with a new generation of Wilwood performance enhancements. Their sleek profile, superior strength, and durability in adverse conditions are easily adapted to a broad range of sports, rally, and off-road driving applications. Wilwood Billet DynaPro calipers feature a stress-flow forging that realigns the metal's grain structure within the contour of the caliper body. The FEA-generated, radial transition design eliminates steps and shoulders in the area between the piston housing body and the caliper bridge bolts. Structural deflection and volume displacement tests have proven the efficiency of this innovative design. All calipers are equipped with Wilwood's SRS stainless steel bridge plates. The SRS plates eliminate the bridge wear caused by pad gouging and extend the service life of the caliper body. The spring-loaded action of the SRS plates also eliminates pad rattle and dampens the vibration harmonics that contribute to squeal under braking.
| Product Attributes | |
|---|---|
| UPC | 889545007282 |
| Brand | Wilwood Disc Brakes |
| Notes | Side inlet for brake line fitting. |
| Quantity | Sold individually. |
| Part Type | Brake Calipers |
| Thread Size | 1/8 in. NPT |
| Caliper Logo | Wilwood |
| Product Line | Wilwood Billet DynaPro Calipers |
| Caliper Color | Gray/Silver |
| Caliper Series | Billet DynaPro |
| Remanufactured | No |
| Caliper Material | Aluminum |
| Brackets Included | No |
| Fittings Included | Yes |
| 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 | 120-9703-SI |
Compatibility
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