TOYOTA 90119-14036 Bolt with Washer, Timing

The TOYOTA 90119-14036 is a genuine OEM bolt with washer (bolt with washer, timing) specifically engineered for the secure fastening of critical engine timing components. This precision fastener plays a vital role in keeping internal engine components securely stabilized, withstanding severe vibration and temperature fluctuations.

Technical Features and Benefits

• Integrated Washer: The washer provides uniform pressure distribution across the fastening surface, preventing damage to mating metal surfaces and minimizing the risk of loosening.
• High Tensile Strength: Manufactured from a premium steel alloy engineered to withstand the shear and tensile forces generated during engine operation.
• Corrosion Protection: Finished with a specialized surface coating that shields the bolt against moisture, engine oil, and chemical contaminants.
• Precision Thread Pitch: Guarantees an exact fit and accurate adherence to factory tightening torque specifications.

Function and Importance in the Timing System

Timing components (such as tensioner pulleys, guides, and camshaft sprockets) are exposed to continuous dynamic loads. A fatigued or substandard bolt can stretch or snap, potentially causing the timing to slip and leading to catastrophic engine damage (valve-to-piston contact). Therefore, inspecting mounting hardware and replacing it with genuine OEM fasteners during timing service is critical.

Signs of Wear or Failure

• Thread Damage or Elongation: Over-torquing or repeated reuse can stretch the threads, preventing the fastener from holding its specified clamping torque.
• Corrosion and Oxidation: Rust compromises the structural integrity of the bolt.
• Micro-cracks: Evidence of metal fatigue that may be difficult to see with the naked eye but can lead to sudden structural failure.