Wilwood Caliper-DPRN (Thin Pad), 1.75" Pistons, .38" Disc
Wilwood Caliper-DPRN (Thin Pad), 1.75" Pistons, .38" Disc
Shipping calculated at checkout.
To United StatesChange
Final options and totals are confirmed at checkout.
45 in stock
Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Disc Brake Caliper Set
- Category
- Brake Calipers
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 3.7 lb
- Barcode
- 889545007725
Billable shipping weight; may include dimensional weight.
Narrow Dynapro Radial Mount
Narrow DynaPro four piston radial mount calipers combine pure race technology with a new generation of Wilwood performance enhancements. The Narrow DynaPro combines 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.
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 macined 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 is available in four configurations. Standard calipers for rotors up to 12.19" feature dust-booted aluminum pistons for maximum protection against track or road born debris in low to intermediate temperature applications. A long radius version is available to accommodate rotors up to 13.00". Competition models use heavy wall stainless pistons to provide addition 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. Optional side inlet calipers are available to simplify plumbing with inboard mounted brakes on live axles and independent suspension rears.
Specifications
| Pistons | |
|---|---|
| Piston Count: | 4 |
| Piston Area (in²): | 4.80 |
| Piston Type: | Stainless |
| Dust Boot: | No |
| Rotor Dimensions | |
| Rotor Width(in): | 0.38 |
| Rotor Diameter(in): | 12.19 |
| Pad Dimensions | |
| Pad Area (in²): | 6.36 |
| Pad Volume (in³): | 2.1 |
| Duty Rating & Material | |
| Material: | Aluminum |
| Weight(Lbs): | 4.1 |
| Colors & Finish | |
| Color: | Ano |
| Finish: | Type III Ano |
| Mounting | |
|---|---|
| Mount Center(in): | 4.75 |
| Mount Side: | Universal |
| Mount Type: | Radial |
| Rotor Compatibility | |
|---|---|
| Rotor Width(in): | 0.38 |
| Maximum Rotor Width(in): | 0.38 |
| Minimum Rotor Width(in): | 0.38 |
| Maximum Rotor Diameter(in): | 12.19 |
| Minimum Rotor Diameter(in): | 10.75 |
| Piston Specifications | |
|---|---|
| Piston 1 Bore(in): | 1.75 |
| Piston 2 Bore(in): | 1.75 |
| Total Piston Area (in²): | 4.80 |
| 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 |
| 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 |
