NISSAN 46289-01N00 Brake Tube Clamp

The genuine Nissan brake tube clamp with part number 46289-01N00 (factory designation: CLAMP, TUBE) is a critical retaining fastener in the vehicle's braking system. Its function is to securely and stably anchor metallic and flexible brake lines to the chassis or suspension components, preventing unwanted movement, vibration, and chafing against surrounding components.

Technical Features and Functions

• Vibration Damping: Minimizes the effects of hydraulic pulsation within the braking system and road-induced vibrations, preventing fatigue cracking in rigid metal brake lines.
• Precise Routing: Ensures accurate routing of brake lines, guaranteeing they do not contact moving parts (e.g., drive shafts, wheels, steering tie rods) or hot surfaces (e.g., exhaust system).
• Material Composition: Typically manufactured from high-grade, heat- and chemical-resistant plastic or specially coated metal, resilient against salt water, brake fluid, engine oil, and extreme temperature fluctuations.

Symptoms of Failure and Importance

Over time, brake line retaining clips can deteriorate, become brittle, and break due to environmental exposure (UV radiation, dirt, road salt, thermal stress). A damaged or missing clip carries the following risks:

• Brake Line Chafing: An unsecured brake line can rub against the chassis or suspension, leading to wall thinning and eventual brake fluid leakage.
• Chassis Noise: Freely vibrating or loose lines can cause metallic knocking or rattling sounds while driving.
• Altered Pedal Feel: In extreme cases, mechanical damage resulting from improper line positioning can lead to sudden hydraulic pressure loss and a drastic decrease in braking performance.

During brake system maintenance, inspecting the condition of the retaining clips and replacing them as necessary is essential for safe operation.