Details

• Brand:

  

  

• SKU:

  AT4Z-6345-B

• Positions: Outer
• Other Names:

  Bolt Bearing Cap Hex Head

• Description:

  This is a genuine Ford OEM engine crankshaft main bearing cap bolt for the 3.5L and 3.7L Cyclone V6 engine family, cataloged by Ford as a hex-head bearing cap bolt. It fastens the main bearing cap to the cylinder block, holding the crankshaft main bearings in place and preserving proper bearing crush and main-bore alignment for true crankshaft rotation under load. This bolt has a coarse-thread 13mm hex head and measures M10 by 115mm, making it the longer companion to the M10 by 94mm bolt used in the same main-cap arrangement. It fits a broad range of 2007 through 2016 Ford vehicles on the Cyclone V6 platform, including Edge, Explorer, Flex, Taurus, Fusion and F-150 equipped with the 3.5L or 3.7L engine. Rebuilders need these bolts whenever the main caps are removed during a crankshaft, main bearing, or short-block overhaul. Because main bearing cap bolts are torque-to-yield fasteners that stretch permanently as they are tightened, they are single-use and must never be reused; always fit new bolts and tighten them using the specified Ford torque-angle procedure to reach the correct clamp load. Reusing a stretched bolt can cause loss of bearing crush, spun main bearings, or cap movement. Some service engines call for a fine-thread version, so verify your thread pitch and bolt length before ordering.

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