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OE-Replacement Main Bearings For Ford 6.8L V10 Super Duty - MB 621SI

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PartNo
MB 621SI
OE-Replacement Main Bearings For Ford 6.8L V10 Super Duty Coated - MB 621MC
OE-Replacement Main Bearings For Ford 6.8L V10 Super Duty - MB 621SI
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As low as $48.83
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King Bearings' bi-metal SI material blends Aluminum with 2.5-3% Silicon, providing strength. Ideal for medium-load engines, particularly engines using nodular cast iron crankshafts. It excels as a Lead-free OE replacement Bearing.
Commonly use for medium-load engines particularly ones using nodular cast iron crankshafts
Crankshaft Dim. Housing Dim. Length Thickness
Positions 1,2,3,4,5,6:
67.50 / 67.48 mm
2.6576 / 2.6568 inch

Positions 6,6:
0.00 / 0.00 mm
0.0000 / 0.0000 inch		 Positions 1,2,3,4,5,6:
72.42 / 72.40 mm
2.8512 / 2.8505 inch

Positions 6,6:
0.00 / 0.00 mm
0.0000 / 0.0000 inch		 Position 1:
19.1 mm
0.752 inch

Positions 2,3,4,5,6:
19.2 mm
0.756 inch

Positions 6,6:
0.1 mm
0.004 inch		 Positions 1,2,3,4,5,6:
2.443 mm
0.0962 inch

Positions 6,6:
2.920 mm
0.1150 inch
Main Bearing Set For FORD 415 - MB 621SI
Suitable for models
Suitable for engines
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Performance features

Material features

Tech Features

Aluminum Based
aluminum base
Bi Metal Aluminum material

Lead free Aluminum based material used for low to heavy load engines

Lead free
Lead Free
Environmentally safe composite

A lead-free bearing material prioritizes environmental sustainability and safety, utilizing alternative compounds to achieve optimal performance in diverse applications.

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