331-73697 DFC OE Replacement Brake Caliper (Rear Left: 2017-2019 Audi A4)

SKU: 990199

Internal hose degradation, environmental exposure, and rubber aging are common causes of pressure loss, uneven caliper response, and fluid leaks in brake systems. Replacing worn or damaged lines with this premium OE-caliper assembly restores hydraulic responsiveness, eliminating volumetric expansion and fluid spillage during heavy-duty braking. Ensuring a direct fit, this caliper assembly delivers consistent braking performance vital for fleet safety and reliability.

Designed specifically for the rear left position on 2017-2019 Audi A4 models, this caliper features a silver zinc coating for enhanced corrosion resistance and durability under severe operating conditions. It maintains precise fitment with OEM specifications, providing a seamless replacement that restores original braking characteristics. Built with heavy-duty materials and high-quality manufacturing standards, this caliper assembly is suitable for fleet operators demanding maximum uptime and safety in demanding environments.

Technical specifications include a 23.88-inch overall length, with a 10mm inlet/outlet thread size, compatible with a broad range of commercial and passenger vehicle applications. Its robust construction ensures high burst pressure ratings and structural integrity, making it ideal for severe-duty applications in industrial, utility, and fleet operations.

Part Numbers

• 331-73697

Expert Installation & Field Note

Our shop experience specializing in heavy-duty brakes since 1985 emphasizes the importance of proper routing and secure mounting of caliper assemblies. When installing this caliper, ensure hoses are routed to avoid chassis chaffing and allow full twist clearance during steering cycles. Always verify that the mounting brackets are correctly positioned on the vehicle frame to prevent undue stress and potential line damage. Accurate installation is critical to maintain brake system integrity and performance in demanding fleet environments.

Features:

• Direct OEM replacement for 2017-2019 Audi A4 rear left caliper

• Silver zinc coating for corrosion resistance and durability

• Heavy-duty construction with high burst pressure ratings

• Fits multiple Audi models with precise OEM specifications

• Designed for severe-duty fleet and industrial applications