
Internal rubber hose degradation and environmental exposure can cause pressure loss, uneven caliper response, and potential fluid leaks, compromising braking performance and safety. This replacement brake hose from DFC is engineered to restore immediate hydraulic response, prevent volumetric expansion under heavy load, and provide a durable, heavy-wall construction suitable for severe-duty fleet applications.
Designed for easy drop-in installation on 1997-1999 Chevrolet and GMC P30/P3500 chassis, this premium brake line features high-burst-pressure ratings, ensuring reliable operation under demanding conditions. Its robust construction withstands chafing, abrasion, and temperature extremes while maintaining flexibility for complex routing in busy fleet environments.
Specifications
- Overall Length: 17.78 inches
- Fitting / Outlet Size: 10mm INV thread
- Application: Commercial-Grade / Heavy-Duty Fleet / Passenger Automotive Cross-Over
Part Numbers
- 350-47345
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985, it is critical to route hoses away from chassis chaffing points and ensure proper twist clearance during full-lock steering cycles. Always verify line mounting brackets on heavy commercial frames for secure attachment and avoid routing across sharp edges or hot surfaces to prolong hose life and maintain safety.
Before ordering, physically inspect your existing brake line length, flare fitting threads, and banjo bolt configurations. Variations in fleet vehicle wheelbases and production changes can alter routing, so confirm dimensions and fittings to ensure proper fitment and safe operation.
Features:
- Heavy-wall construction for severe-duty fleet applications
- High-burst-pressure ratings for reliable hydraulic performance
- Drop-in replacement designed for Chevrolet P30 and GMC P3500 models
- Corrosion and abrasion-resistant materials for extended service life
- Compatible with 10mm INV threaded fittings for secure connections



