Engine Crankshaft Pulley Bolt Compatible with Ford F-150 Mustang Expedition Explorer Escape Taurus Crown Victoria E-150 E-250 E-350 E-450 Lincoln Mercury Replace# F5RZ-6A340-B F5RZ6A340B
【Grade 10.9 High-Strength Alloy Steel】: The crankshaft pulley bolt is made of high-strength alloy steel with a grade 10.9 strength rating, featuring excellent tensile strength to withstand continuous vibration and load from engine operation, resisting deformation and fracture, far exceeding ordinary steel and ensuring a longer service life.
【Heat Treatment】: The harmonic balancer bolt is processed with heat treatment, featuring high hardness and effectively improving the stability of its internal structure, which greatly enhances overall hardness and tensile strength to ensure stable clamping force even during high-speed engine operation. The bolt surface is treated with black oxide finish for corrosion resistance, rust prevention and wear resistance.
【Function】: The pulley fasteners helps secure the pulley position and maintains stable operation of the transmission system. It can solve common problems such as loose crankshaft pulley, abnormal noise during operation, and belt slippage.
【Easy to Use】: Installation is simple, just insert the bolt by aligning it with the pulley positioning hole, then tighten it with a wrench to complete the installation.