NISSAN 54050-VB000 Suspension Bump Stop

The genuine NISSAN 54050-VB000 bound bumper assembly (bump stop) is a critical safety and protection component of the vehicle's suspension system. Its function is to protect the shock absorber and other suspension structural components from extreme mechanical impacts at full travel when the suspension is fully compressed.

Technical Characteristics and Specifications

• Manufacturer: NISSAN (Genuine OEM part)
• OEM Part Number (SKU): 54050-VB000
• Alternative / OEM References: 54050VD200, ND003
• Part Type: Bound Bumper Assembly / Bump Stop
• Material: High-density microcellular polyurethane elastomer or premium-grade rubber with exceptional energy-absorbing capability and progressive elasticity.
• Resistance: Excellent resistance to oil, mud, road salt, and extreme temperature fluctuations.

Function and Importance of the Bump Stop

The bump stop acts as a buffer during maximum suspension deflection. When the vehicle strikes a deep pothole or is under heavy load, the suspension can reach its physical limit. Part number 54050-VB000 provides progressive end-of-travel damping, preventing metal-to-metal contact. This protects the internal valves and piston rod of the shock absorber from deformation and reduces abrupt shock loads transmitted to the vehicle body.

Typical Symptoms of Wear and Failure

Because the bump stop is continuously exposed to environmental influences and mechanical stress, it degrades over time. Common symptoms of failure include visible cracking, crumbling, or complete tearing of the rubber or polyurethane body. Additionally, heavy metallic knocking noises from the suspension when traversing rough road surfaces indicate a deteriorated bump stop. Replacing a damaged part is vital for preserving the operational lifespan of the shock absorbers.