What is the size of these main bearings?

These main bearings are sized at +0.25mm. This means they are slightly larger than standard size, which is often used to account for wear on the crankshaft journals during an engine rebuild.

What does 'lead-free composite' mean for these bearings?

The lead-free composite material is an environmentally safe option that King Engine Bearings uses. It's designed to perform well in medium-load engine applications, offering durability without the use of lead.

Are these bearings suitable for high-performance or racing engines?

These bearings are described as ideal for medium-load engines. For high-performance or racing applications, it's always best to consult King Engine Bearings' specific product lines designed for those demanding conditions.

Specifications

Brand: King Engine Bearings
Part #: MB4549SI0.25
UPC: 611500615689

King Engine Bearings Ford Ecoboost 3.5L V6 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Ford Ecoboost 3.5L V6 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-ecoboost-3-5l-v6-size-0-25mm-main-t14-770414
Price: 63.73 USD
Availability: BackOrder

$63.73

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King Engine Bearings Ford Ecoboost 3.5L V6 (Size +0.25mm) Main Bearing Set. Lead-free composite bearings for medium-load engines.

Key Features

Fits 16+ vehicle make/model combinations.
Main bearing set for Ford Ecoboost 3.5L V6 engines.
Bearings are sized +0.25mm for a precise fit.
Constructed with a lead-free, environmentally safe composite material.
Suitable for medium-load engines.
Features a bi-metal aluminum construction.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

When you're rebuilding the bottom end of your Ford Ecoboost 3.5L V6, you want main bearings that are built to last. This set from King Engine Bearings includes the main bearings you need, specifically sized at +0.25mm to ensure a precise fit for your engine's needs. King has been specializing in bearings since 1960, focusing on supplying well-built engine bearings for a wide range of applications.

These bearings are constructed with a lead-free, environmentally safe composite material. This makes them a solid option for medium-load engines like those found in many Ford and Lincoln vehicles, including models like the Ford F-150, Ford Explorer, and Lincoln MKT. The bi-metal aluminum construction offers a good balance of strength and performance for the crankshaft journals.