TOYOTA 91651-B0820 Bolt with Washer

The Toyota 91651-B0820 (replacement part number: 90119-08610) is a genuine OEM quality hex bolt with an integrated washer (Bolt with washer). This fastener is utilized across numerous structural and mechanical assemblies in Toyota and Lexus vehicles where dependable fastening and resistance to vibration are critical.

Technical Features and Benefits

• Genuine OEM Quality: Ensures precise fitment and tensile strength engineered to exact factory specifications.
• Integrated Washer: Evenly distributes clamping force across the mounting surface, preventing material deformation and preventing the bolt from backing out due to vibration.
• Superior Corrosion Protection: Treated with a specialized surface coating that resists moisture, road salt, and elevated under-hood temperatures.
• Replacement Part Number: 90119-08610

Role and Importance in the Vehicle

Bolts with integrated washers are essential for the secure attachment of various vehicle assemblies, such as engine mount brackets, body panels, suspension components, or auxiliary equipment. The pre-assembled washer facilitates easier installation by eliminating the risk of losing loose washers in tight, hard-to-reach areas, while ensuring optimal pressure distribution.

Signs of Wear and Failure

• Corrosion and Rust: Surface oxidation can compromise the bolt's structural integrity, potentially leading to breakage.
• Thread Damage: Cross-threading or overtightening can strip the threads, resulting in a loose fastening.
• Deformation or Elongation: Tightening beyond recommended torque specifications can stretch the bolt, diminishing its clamping load.

To maintain structural integrity and secure assembly, it is recommended to replace damaged or corroded fasteners with genuine Toyota OEM parts.