Raybestos 521PG Drum Brake Shoe PG Plus Organic Rear

The Raybestos 521PG PG Plus Organic Rear Drum Brake Shoe is a precision replacement part from Raybestos’ Element3 line, engineered with PG Plus Organic friction material for rear drum brake systems and designed to replace worn shoes while preserving the original geometry and contact surface. As a rear brake shoe, it fits into compatible drum-brake configurations and works with the corresponding backing plate, wheel cylinder, and drum to maintain proper alignment, consistent clearance, and predictable braking behavior across service intervals. Within Raybestos’ catalog, the 521PG designation identifies this model as the PG Plus Organic rear option in the Element3 lineup, a formulation commonly associated with older GM-era drum-brake applications. Documented fitments include Buick Century models from 1982 through 1984, making the 521PG a targeted choice for restoration and maintenance of those specific classics that rely on rear drum brakes.