Ford Modular 4.6/5.4 Main Bearings 1991-2014 King MB5280SI

King main bearing set for the Ford Modular 4.6/5.4 (1991-2014). Listed for one application: Ford Modular 4.6/5.4 engines, 1991-2014, in Ford, Lincoln, Mercury applications. Confirm your engine code and year against this listing before ordering.

What it does

Main bearings carry the crankshaft in the block. Low oil pressure, debris or detonation wipe them, and a spun main is an engine-out event. A new set at the correct size (standard or undersize) is part of every rebuild.

Fits

• Ford vehicles with the Ford Modular 4.6/5.4 engine, 1991-2014
• Lincoln vehicles with the Ford Modular 4.6/5.4 engine, 1991-2014
• Mercury vehicles with the Ford Modular 4.6/5.4 engine, 1991-2014

Fixes

• a deep knock that follows engine load
• low hot oil pressure with a worn pump ruled out
• any crank-out rebuild

What's included

• a full main bearing set with thrust bearing at the stated size

Specifications

• Brand: King
• Part number: MB5280SI
• Shipping weight: 1.5 lb
• Condition: new
• Product type: Main Bearings

Cross-reference

Replaces or interchanges with King MB5280SI for the Ford Modular 4.6/5.4. Check the part number stamped on your original before ordering.

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.