
Internal hose degradation and environmental exposure are common failure points that lead to pressure loss, uneven caliper response, and potential fluid leaks in fleet brake systems. Replacing worn or damaged caliper hoses with this premium upgrade restores hydraulic responsiveness, eliminates fluid expansion under heavy braking, and ensures consistent brake performance vital for heavy-duty operations.
This caliper assembly features a heavy-duty construction with a corrosion-resistant silver zinc coating, designed to withstand harsh conditions and prolonged use in commercial fleet environments. Its precise fitment guarantees seamless installation into existing Porsche 911 models from 1984 to 1989, providing a reliable, long-lasting replacement that restores original braking performance and safety standards.
- Overall Length: As Specified
- Fitting / Outlet Size: 10mm INV thread
- Application: Commercial-Grade / Heavy-Duty Fleet / Passenger Automotive Cross-Over
Part Numbers
- 331-02028
Expert Installation & Field Note
Our shop experience specializing in heavy-duty brakes since 1985 emphasizes the importance of routing caliper lines properly to prevent chaffing against chassis components. Ensure hoses have adequate twist clearance during full-lock steering cycles and verify mounting brackets on heavy commercial frames are secure and properly aligned. These steps are critical to maintaining long-term performance and safety in fleet applications.
Before ordering, physically inspect your existing line length, banjos, or flare fitting threads. Variations in wheelbase and production runs can alter routing configurations on fleet and utility vehicles. Confirm dimensions to ensure exact fitment and avoid installation delays.
Features:
- Heavy-duty construction with corrosion-resistant silver zinc coating ensures durability in severe-duty environments.
- Designed for seamless fitment on Porsche 911 models from 1984 to 1989, restoring original braking response.
- Fitted with a 10mm INV thread outlet for secure hydraulic connection.
- Engineered for fleet applications, providing reliable performance under high-stress conditions.
- Easy direct replacement, reducing downtime and maintenance costs.



