Wilwood 120-16443 Forged Dynalite-M 4-Piston Disc Brake Caliper 1.38" Pistons .81" Disc

The Wilwood Forged Billet Dynalite-M (120-16443) is an evolution of the proven Forged Dynalite caliper series, engineered with a specific focus on enhanced outboard clearance and serves as the foundation for Wilwood's Classic Style brake kits. Featuring four 1.38" stainless steel pistons and designed for .81" disc width, this caliper delivers race-proven stopping performance for a wide range of motorsport and performance applications.

Forged Construction & Structural Superiority:

• Stress-flow forging process re-aligns the metal's grain structure to match the caliper body contour, eliminating the structural interruptions caused by machining straight billet
• FEA-generated radial transition design removes steps and shoulders between the piston housing and caliper bridges, dramatically increasing resistance to deflection and separation under load
• Structural deflection and volume displacement testing confirms superior performance over all comparable caliper styles of this size
• Reduced deflection and lower fluid volume displacement translates to increased clamping efficiency, less pedal travel, and a firmer, taller pedal feel

Standard Performance Features:

• SRS stainless steel bridge plates eliminate pad-gouging wear on the bridge and extend caliper body service life; spring-loading action prevents pad rattle and dampens brake squeal harmonics
• Stainless steel pistons resist corrosion and retard heat transfer from brake pads to the caliper body
• High-temperature seals for reliable performance under demanding braking conditions
• Internal fluid passages eliminate the need for external brake lines or tubes
• Four-corner bleed screws allow complete air evacuation and enable a single caliper to be mounted in any position—front, rear, left, or right
• Bright black anodized finish resists corrosion and delivers a clean, high-tech appearance

The Wilwood 120-16443 Forged Dynalite-M disc brake caliper is an ideal choice for racing and high-performance street applications where caliper strength, consistent pedal feel, and outboard clearance are critical priorities.