Details

• Brand:

  

  

• SKU:

  JL3Z-6337-E

• Positions: Upper
• Other Names:

  Engine Crankshaft Main Bearing, Main Bearings, Bearing Crankshaft Main

• Description:

  This is a genuine Ford engine crankshaft main bearing for the 3.0L Power Stroke turbo-diesel V6 found in 2018 through 2020 Ford F-150 pickups. The main bearing forms the precision-machined bearing surface between the crankshaft main journals and the engine block saddle, carrying combustion and rotational loads while maintaining a controlled oil film that keeps the crankshaft spinning freely without metal-to-metal contact. This is the upper bearing shell and carries the yellow selective-fit grade marking, meaning it is matched to a specific crankshaft journal and block bore size measured at the factory, so installing the correct color grade is essential to achieving the specified running clearance and oil pressure. Worn or spun main bearings typically announce themselves with a deep rhythmic knock from the lower engine that intensifies under load, low or fluctuating oil pressure, metallic debris in the oil, and in severe cases seizure of the rotating assembly. Any engine that has run low on oil, suffered oil contamination, or accumulated high mileage is a candidate for bearing replacement during a rebuild or bottom-end service. Because the bearing must be matched to the crankshaft and block dimensions, verify the required grade against the factory markings on the crank and block before ordering. Correct assembly demands a clean bore, the specified assembly lubricant, and torque-to-yield main cap bolts tightened to the published sequence and angle. Replacement main cap bolts should always accompany a bearing job because the original stretch bolts are single-use and must never be reused. Installing this genuine Ford bearing restores the factory clearance, oil film, and durability that generic bearings cannot reliably guarantee on the Power Stroke diesel bottom end.

• Applications: 3.0L DIESEL.

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