Wilwood's DPC56 is a fixed-mount, four-piston caliper with a black powder-coated finish, built on the brand's DynaPro low-profile design after computer modeling refined the layout. The manufacturer pitches it as a high-performance street and custom replacement for Corvettes and hot rods that run Corvette suspension. Its forged aluminum body houses four stainless steel pistons with a 1.25-inch bore, and the manufacturer lists 5.1 square inches of pad area for a 1.04-inch rotor. The four-piston, fixed-mount design is what the manufacturer credits for firm pedal response and even pad loading, which is the real case for stepping up from a stock single-piston setup if you brake hard on track days or at autocross events.
Fitment centers on Corvette applications, so verify the 1.04-inch rotor width and 12-inch rotor diameter against your hub and rotor before ordering. Owners on user forums say clearance around stock C5 wheels is tight, with many running 3–5 mm spacers for hub flex, and some report rear fitment issues that call for shims. Searches for this caliper usually involve terms like Corvette DPC56 rear caliper upgrade, four-piston fixed caliper for C5 Corvette, 1.04 inch rotor big brake kit, and black Wilwood 120-13916-BK. Owners also note that multi-piston calipers need a master cylinder matched to their smaller bores, so check your pedal setup before assuming a bolt-on swap will feel right.
Owners on user forums report that these calipers generally clear OEM C5 wheels, but clearance is tight and many owners run 3–5 mm spacers. Details vary, so confirm wheel clearance with the manufacturer before ordering.
The manufacturer describes the DPC56 as a rear caliper and lists its mount location as universal. Confirm side orientation and fitment with the manufacturer before ordering.
The manufacturer includes shims for centering, but owners on user forums report that rear fitment on some setups requires shims and that centering can be difficult. Check rotor centering during installation.
Owners on user forums describe the install as relatively straightforward for a home mechanic, with bleeding the brakes as the most time-consuming step; one owner recommended doing it as a two-person job. Check rotor centering before final tightening, since owners report the rotor can sit off-center and the included shims may not fully correct it. Confirm torque specifications, hose and line compatibility, and pad selection with the manufacturer before starting.
