Wilwood's DynaPro DP6A is a forged aluminum, six-piston lug-mount caliper built on the company's racing-derived DynaPro line, and this right-hand, black powder-coated unit uses the 1.62/1.38/1.38 inch piston configuration with stainless pistons. Its 5.25 inch mount center and 5.06 square inch total piston area give a larger pad footprint than a four-piston Dynalite, and the manufacturer says it is a direct interchange with all 5.25" pattern lug mount DynaPro and Dynalite calipers. That means a track or autocross build can step up braking capacity without reworking the existing bracket. Search terms: Wilwood DynaPro 6 5.25 lug mount caliper, 1.62/1.38/1.38 piston right hand caliper, 0.81 rotor caliper upgrade.
Compared with a stock single-piston or four-piston setup, the appeal is the six-piston differential bore. The manufacturer's listing for this configuration pairs it with .810 rotor width ordering data, so match your rotor carefully before buying. The maximum rotor diameter is 13.00 inches, which covers most big-brake and 13-inch track setups. Because the caliper is handed, order the right-hand version for the passenger side, and budget for the matching left-hand unit on the other corner. Keep in mind that bracket and rotor compatibility can vary by vehicle, so confirm before ordering.
The manufacturer states it is a direct interchange with 5.25-inch lug-mount DynaPro and Dynalite calipers. Bracket and hat requirements can differ by vehicle, so confirm the bracket with the manufacturer before ordering.
The manufacturer lists a maximum rotor diameter of 13.00 inches. This specific 1.62/1.38/1.38 configuration is listed by the manufacturer with a 0.81-inch rotor width.
The manufacturer's assembly instructions for the DynaPro 6 black caliper list a 1/8-27 NPT inlet, so plan your hose ends and fittings around that thread.
The manufacturer's assembly instructions call for a 1/8-27 NPT inlet fitting, so buy steel adapter fittings that seal that thread and use PTFE tape on the pipe threads. Its install guidance also recommends steel braided line with enough length to allow for suspension travel. For mounting, the manufacturer offers a caliper mount bolt kit for DynaPro and Dynalite calipers that contains four 3/8-24 x 1.25" lock wire drilled bolts, washers, and shims. Check that your rotor falls within the 13.00-inch maximum before assembly, and bleed the system thoroughly after the install.
