TOYOTA 92136-61240 Stud Bolt

This genuine OEM TOYOTA stud bolt (part number: 92136-61240) is a premium-quality, heavy-duty fastener designed and manufactured in accordance with strict factory specifications. Stud bolts play a vital role in securely fastening automotive engine and structural assemblies where conventional bolts would not provide adequate stability or durability.

Function and Significance

A stud bolt is a fastener threaded at both ends, typically anchored permanently into an engine block, cylinder head, or other castings, while the mating component is secured with a nut. This design provides a more uniform clamping force distribution and protects the internal threads of the receiving component from wear and damage during maintenance. They play an especially critical role in areas exposed to high temperatures and vibrations, such as connections on exhaust systems, intake manifolds, or turbochargers.

Technical Features and Specifications

• Manufacturer: TOYOTA (Original Equipment Manufacturer)
• OEM Part Number: 92136-61240
• Product Type: Stud Bolt (Bolt, Stud)
• Material Composition: High-tensile, heat-treated steel alloy resistant to high mechanical stress and thermal expansion stresses.
• Surface Treatment: Specialized anti-corrosion coating against environmental factors and rust.
• Thread Design: Precision metric threads for optimal fit and maximum holding force.

Signs of Wear and Failure

Stud bolts are subjected to continuous extreme loads and can wear out over time. Common symptoms and causes of failure include:

• Thread damage or stretching: Tightening with improper torque (over-torquing) can lead to thread deformation or bolt stretching, which reduces clamping force.
• Corrosion and seizing: High temperatures combined with moisture can cause stud bolts to corrode, complicating disassembly and potentially leading to breakage.
• Fatigue failure: Continuous vibration and thermal expansion cycles can cause material fatigue, causing the stud bolt to shear or snap.

To ensure safe and leak-free operation, damaged, stretched, or severely corroded stud bolts should always be replaced, preferably with a genuine OEM TOYOTA part.