NISSAN 46211-WG11A Brake Hose Assembly

The genuine NISSAN rubber brake hose (HOSE ASSY-BRAKE) with part number 46211-WG11A is a critical safety component of the vehicle's hydraulic brake system. The flexible brake hose is designed to safely transfer high-pressure brake fluid without leakage or pressure loss between the rigid brake line and the brake caliper or wheel cylinder that moves with the suspension.

Technical Data and Specifications

• Manufacturer: NISSAN
• OEM Part Number: 46211-WG11A
• OEM / Alternative Reference Number: 46211VB00B
• Part Type: Hydraulic brake hose assembly
• Construction: Multi-layer synthetic rubber compound with high-tensile internal reinforcing fabric
• Fittings: Precision crimped metal fittings with corrosion protection
• Operating Characteristic: Low-expansion design to maintain direct pedal feel and precise braking response

Technical Function and Operation

In the brake system, flexible brake hoses are subject to continuous mechanical stress caused by vertical suspension travel and steering movements. Despite these stresses, the brake hose must resist extreme hydraulic pressures generated during braking (often exceeding 100–150 bar) without volumetric expansion, preventing a spongy brake pedal.

Typical Wear and Failure Symptoms

Brake hoses are safety-critical wear items that should be inspected during every brake system service. Replacement is essential when observing any of the following symptoms:

• Micro-cracks, hardening, or chafing on the outer rubber layer
• Blistering or bulging under pressure
• Brake fluid leakage at the crimped metal fittings or along the hose body
• Internal rubber layer degradation or delamination, which can restrict fluid return and cause caliper seizing
• Reduced braking performance or a spongy brake pedal feel