Wilwood 120-15796-BK D154-DS Forged Billet Single Piston Disc Brake Caliper Black Anodized

The Wilwood D154-DS is a forged billet aluminum single-piston floating caliper engineered as a direct bolt-on, lightweight, high-strength replacement for the OE cast iron calipers originally fitted to a wide range of factory disc brake-equipped mid-size GM cars and small trucks from 1978 onward. The D154-DS sets itself apart from standard D154 calipers with the addition of an exclusive dust wiper seal that provides an extra layer of protection for the piston bore against dust and corrosion — making it compliant for use in regions that mandate environmental sealing.

Key Features:

• Forged billet aluminum body — lightweight construction with superior strength over OE cast iron
• 2.50" single stainless steel piston — resists corrosion and retards heat transfer from brake pads into the caliper body
• 1.04" rotor disc compatibility
• Exclusive dust wiper seal — shields the piston bore from dust, debris, and moisture beyond the standard square-face bore seal
• High-temperature square-face bore seals — provide controlled piston retraction and consistent performance under sustained heat
• Dampening rings on slide pin holes — minimize noise caused by vibration
• Dual bleed screws (one on each end) — allow flexible mounting in left-hand or right-hand, front leading or rear trailing positions
• Black anodized finish — durable and corrosion-resistant appearance
• Compatible with standard OE D154-type brake pads and OE M10-1.5 banjo bolt brake line fitting

The D154-DS has proven itself across a broad spectrum of applications — from daily street driving to extreme sustained high-temperature racing environments. Its widespread pad compound availability has also made it a popular choice for restricted class competition and drum-to-disc brake conversions on hot rods and custom street machines.