Earl's Performance Aluminum AN B-Nut to B-Nut Extension Fittings

Earl's Performance Aluminum AN B-Nut to B-Nut Extension Fittings are precision-machined inline connectors engineered to extend and adapt AN brake lines and hydraulic circuits in racing and high-performance applications. Built to the exacting standards that have made Earl's the benchmark in motorsport fluid system plumbing, these extension fittings deliver the leak-free reliability that professional builders and fabricators demand.

Key Features:

• 6061-T6 billet aluminum construction — Lightweight, high-strength aerospace-grade alloy provides an excellent strength-to-weight ratio suited for performance and competition use
• B-nut to B-nut inline configuration — Enables seamless in-line extension of existing AN brake and hydraulic line assemblies without sacrificing flow or hydraulic integrity
• Precision-machined threads — Ensures consistent, leak-free sealing and straightforward installation across every application
• Compatible with Earl's Speed-Seal hose ends — Integrates directly into Earl's comprehensive brake system plumbing ecosystem and is compatible with industry-standard AN brake fittings
• Vibration resistant — Engineered to maintain a secure, stable connection under the extreme mechanical demands of competitive motorsport
• Reusable design — Supports multiple installations and system rebuilds without compromising sealing performance
• Multiple AN sizes available — A complete range of sizes ensures compatibility across a wide variety of brake line and hydraulic system configurations

Emissions Compliance: Legal for sale or use on emissions-controlled vehicles, uncontrolled (non-emissions-controlled) vehicles, and racing-use-only vehicles, as these fittings do not affect vehicle emissions and are not covered by emissions regulations.

Earl's Performance Plumbing brought aviation fluid transfer technology to the automotive performance market over five decades ago, and today offers the most extensive line of AN plumbing products available. These B-Nut extension fittings preserve the full hydraulic integrity of your brake circuit while providing the routing flexibility required for custom chassis builds, professional race car preparation, and high-performance street applications. Whether extending a master cylinder line, adapting a caliper connection, or rerouting a hydraulic clutch circuit, Earl's B-Nut extensions deliver the quality and consistency that serious builders demand.