TOYOTA 91651-41020 Bolt with Washer

The genuine Toyota 91651-41020 part is a premium-quality fastening bolt with washer. This genuine OEM (Original Equipment Manufacturer) component guarantees a perfect fit, maximum reliability, and a long service life across various structural assemblies of Toyota and Lexus vehicles.

Technical Features and Specifications

• Type: Hex bolt with integrated washer
• Material: High-tensile, hardened steel for maximum shear and tensile strength
• Surface Treatment: Specialized corrosion-resistant coating that resists moisture, mud, and road salt
• Design: The integrated washer ensures optimal load distribution, prevents surface damage to the mating component, and reduces the risk of vibration-induced loosening

Function and Importance

In the automotive industry, fastener quality is critical to safety. This bolt secures various vehicle components (such as engine compartment accessories, covers, brackets, or body elements) firmly and without vibration. Factory-specified thread pitch and material quality ensure the bolt withstands dynamic operational stress.

Signs of Wear or Damage

• Corrosion and Rust: Following damage to the protective coating, rust can compromise the structural integrity of the bolt.
• Thread Damage: Over-torquing or improper installation can cause threads to stretch or strip.
• Mechanical Damage: Rounding or deformation of the bolt head complicates proper removal and installation.

To ensure safe operation, always replace damaged, stretched, or severely corroded bolts with new genuine Toyota parts using the manufacturer-specified tightening torque.