Details

• Brand:

  

  

• SKU:

  F7TZ-6345-AB

• Other Names:

  Bolt Bearing Cap Hex Head

• Description:

  This is the genuine Ford engine crankshaft main bearing cap bolt, the hex-head fastener that clamps a main bearing cap to the block and holds the crankshaft in precise alignment while carrying the full clamp load of the rotating assembly. Cataloged under base 6345 as a main bearing cap bolt for the Modular V8, it fits 4.6L and 5.4L applications spanning roughly 2000 through 2011, including F-150 and related trucks. Because it torques into the deep-skirt lower end, correct clamp load is critical to bearing crush, oil clearance, and crankshaft endplay; an improperly tightened or reused bolt can lead to bearing knock, spun bearings, or oil pressure loss. Ford main bearing cap bolts of this type are torque-to-yield and are tightened by a torque-plus-angle procedure that stretches the bolt into its yield range. For that reason these bolts should not be reused once they have been removed; always install new bolts and follow the published Ford torque-angle sequence. Note that this is a fastener under base 6345 and is not a crankshaft pulley, damper, or balancer.

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