The Pinion Brake Plumbing Kit for 1/8" NPT Master Cylinders provides everything needed to plumb a pinion brake system using premium Fragola Performance components. Designed around a 1/8" NPT master cylinder and -3 AN plumbing, this complete kit simplifies installation while delivering the reliability required for demanding off-road applications. Rather than sourcing individual hoses and fittings, this pre-engineered package includes the same Fragola Performance components used on Wide Open Design turn-key buggies. Stainless braided flex lines, precision AN fittings, and matching tube hardware help create a clean, professional, leak-free brake plumbing system for rock crawlers, rock bouncers, Ultra4 cars, and custom fabrication projects. Includes: (4) 10" -3 AN Stainless Braided Flex Lines (2) 1/8" NPT to -3 AN 90° Adapter Fittings (8) -3 AN Tube Unions (12) -3 AN Tube Nuts (12) -3 AN Tube Sleeves Specifications Specification Details Manufacturer Wide Open Design Primary Components Fragola Performance Product Type Pinion Brake Plumbing Kit Master Cylinder Thread 1/8" NPT Brake Line Size -3 AN Flex Line Length 10" Flex Line Construction Stainless Braided Adapter Fittings 1/8" NPT to -3 AN 90° Application Pinion Brake Systems Typical Use Trail Rigs, Rock Crawlers, Rock Bouncers, Competition Buggies Fitment Component Compatibility Master Cylinder 1/8" NPT Port Brake Plumbing -3 AN Brake System Pinion Brake Applications Vehicle Type Universal Custom Fabrication Fitment Notes Designed for pinion brake systems using a 1/8" NPT master cylinder. Uses standard -3 AN brake plumbing throughout the system. Suitable for custom off-road brake plumbing applications. Verify hose routing and required line lengths before final installation. Confirm master cylinder thread size and brake component compatibility prior to assembly. FAQ 1. Why are -3 AN brake lines commonly used in hydraulic brake systems? -3 AN is the industry standard size for hydraulic brake plumbing because it provides the proper balance of fluid volume, pressure handling, flexibility, and compact routing for high-performance brake systems. 2. Why are stainless braided flex lines important on a pinion brake? Pinion brakes experience constant axle movement, vibration, and heat. Stainless braided hoses help resist expansion under pressure while providing durability in harsh off-road environments. 3. Why use a complete plumbing kit instead of individual fittings? A matched kit eliminates compatibility issues between thread types, fitting sizes, and hose ends. Using components engineered to work together helps simplify installation and reduce the possibility of fluid leaks. 4. What advantage do AN fittings provide over standard compression fittings? AN fittings provide precise sealing surfaces, excellent vibration resistance, and easy serviceability. They are widely used in motorsports because they offer reliable performance in demanding hydraulic systems. 5. What should be checked before filling and bleeding the brake system? Verify that every fitting is fully seated, brake lines are properly supported away from moving or hot components, hose routing allows full suspension travel, and all flare connections are tightened to the manufacturer's specifications before bleeding the system.
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