TOYOTA 52217-60020 Body Mount Bolt

The Toyota 52217-60020 genuine (OEM) body mount bolt (BOLT, BODY MOUNT) is a critical high-tensile fastener engineered to securely attach the vehicle body to the chassis frame. This specialized bolt ensures structural integrity while withstanding substantial dynamic and static loads encountered during driving.

Technical Features and Properties

• Material Quality: Premium high-tensile steel alloy engineered to resist shear and tensile stresses.
• Surface Treatment: Specialized anti-corrosion coating (galvanized or phosphated layer) providing robust protection against moisture, mud, and road salt.
• Design: Precision-engineered thread profile for an exact fit and vibration resistance, preventing backing-out and loosening over time.
• Installation Position: Located at the mounting points between the body and the chassis, passing through the rubber or polyurethane body mount bushings.

Role and Importance

Body mount bolts play an essential role in maintaining structural rigidity and cabin comfort. Working in conjunction with the body mount cushions, they absorb vibrations and shocks from road irregularities, isolating them from the passenger cabin. Furthermore, in the event of a collision, they are critical to keeping the vehicle body properly anchored to the chassis, ensuring passenger safety cell protective zones function as designed.

Signs of Wear and Failure

Because these bolts are exposed to environmental elements beneath the vehicle, they are subject to degradation over time. Common symptoms include:

• Severe Corrosion: Rust weakens the bolt's cross-section, which can ultimately lead to bolt shearing or snapping.
• Mechanical Damage or Stretching: Heavy off-road usage, overloading, or impact damage can stretch or bend the bolts.
• Chassis Noises: A loosened or damaged bolt can cause metallic clunking, clicking, or squeaking noises when the body flexes during cornering or over rough surfaces.

For optimal safety and structural performance, damaged, corroded, or stretched body mount bolts should always be replaced with genuine Toyota OEM fasteners.