What does the 'MC010' in the part number mean?

The 'MC' typically refers to the material or coating used by King, and the '010' indicates that this set is 0.010 inches undersize. This is important if your crankshaft has been machined down during an engine rebuild.

Why is main bearing size important?

Proper main bearing size ensures the correct oil clearance between the crankshaft and the engine block. This clearance is critical for maintaining consistent oil pressure and ensuring adequate lubrication to all engine components.

What is the primary function of main bearings?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate freely while maintaining a precise gap for oil flow, which lubricates and cools the rotating assembly.

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Specifications

Brand: King Engine Bearings
Part #: MB4555MC010
UPC: 611500616730

King Engine Bearings GM LS 4.3 V6 (Size 1.0) Main Bearing Set

Name: King Engine Bearings GM LS 4.3 V6 (Size 1.0) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-ls-4-3-v6-size-1-0-main-bearing-set-t14-432416
Price: 70.72 USD
Availability: BackOrder

$70.72

On Backorder

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Key Features

Fits GM LS 4.3 V6 engines.
Main bearing set with a 0.010 inch undersize.
Part number MB4555MC010.

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About this part

Product Details

King Engine Bearings is well-known for making solid engine bearings. This main bearing set, part number MB4555MC010, is built for GM LS 4.3 V6 engines. It's a crucial part for keeping your engine's crankshaft supported and spinning smoothly.

This set is 0.010 inches undersize, which is important if you're working with a crankshaft that has been machined down. Using the correct bearing size is key for proper oil clearance, which directly impacts oil pressure and the overall health of your engine. King uses advanced design and manufacturing techniques to ensure these bearings perform reliably.