CALIPER GM D1541.12 .81 BLACK

The CALIPER GM D1541.12 .81 BLACK by Wilwood is a precision-engineered brake caliper designed for GM vehicles requiring high-performance stopping power and reliability. Built for automotive enthusiasts and mechanics who demand OEM or better replacement quality, this caliper addresses the critical need for responsive braking in both street and performance applications. Whether you're maintaining factory specifications or upgrading your stopping system, this single-piston caliper delivers the hydraulic responsiveness that modern drivers expect.

This caliper features a robust cast iron construction with a black powder-coat finish that resists corrosion and brake dust buildup common in heavy-use environments. The .81-inch piston bore generates optimal brake pressure distribution across the friction surface, ensuring consistent pad wear and predictable modulation under repeated braking cycles. Wilwood's engineering focuses on thermal stability and seal longevity—critical factors when brake fluid temperatures exceed 250°F during spirited driving or towing. The D1541.12 mounting configuration aligns with GM's engineering specifications, guaranteeing proper caliper geometry and pad clearance without modification.

Technicians servicing C4, C5, or other GM platforms will appreciate the straightforward installation and compatibility with OEM brake lines and mounting hardware. This caliper performs equally well in daily commuting and track-day scenarios where brake fade resistance matters. Before installation, verify your specific GM model year and brake package to confirm fitment; proper bleeding procedure and DOT 3 or 4 fluid are essential for optimal performance. At 4.9 lbs, the compact footprint allows easy clearance checks during wheel fitment.