What does the +0.25mm sizing mean for these bearings?

The +0.25mm designation means these bearings are 0.25mm undersize compared to a standard bearing. This sizing is used when the crankshaft journals have been machined down (ground) during an engine rebuild to remove imperfections or to prepare for new bearings.

What is the benefit of the lead-free composite material?

The lead-free composite material is an environmentally safe option that is ideal for medium-load engines. It helps ensure reliable performance and durability for the bearing surface.

Are these bearings suitable for a performance engine build?

These bearings are designed for medium-load engines and are a solid choice for a standard rebuild or a mild performance application. For high-performance or extreme-load engines, different bearing materials and specifications might be recommended by the engine builder.

Specifications

Brand: King Engine Bearings
Part #: MB5353SI0.25
UPC: 611500423017

King Engine Bearings Ford 281 4.6L Sohc 16V (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Ford 281 4.6L Sohc 16V (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-281-4-6l-sohc-16v-size-0-25mm-mai-t14-770649
Price: 41.47 USD
Availability: BackOrder

$41.47

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Fits 1996-2011 Ford Crown Victoria. King Engine Bearings main bearing set, 0.25mm undersize, made with lead-free composite for medium-load engines.

Key Features

Fits 1996-2011 Ford Crown Victoria, 2006-2011 Lincoln Town Car, and 2006-2011 Mercury Grand Marquis.
Main bearing set is 0.25mm undersize (+0.25mm) for use with machined crankshaft journals.
Constructed with a lead-free, environmentally safe composite material.
Features a bi-metal aluminum construction.
Suitable for medium-load engines.

⚠️ 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

These main bearings from King Engine Bearings are built with a lead-free, bi-metal aluminum composite. This material is ideal for medium-load engines, offering a solid option for your Ford 4.6L SOHC 16V engine rebuild. They are specifically sized at +0.25mm, meaning they are 0.25mm undersize to account for crankshaft journal machining during an engine overhaul.

King Engine Bearings has been a specialist in this field since 1960, focusing on producing reliable engine bearings. This set is designed to fit your 1996-2011 Ford Crown Victoria, 2006-2011 Lincoln Town Car, or 2006-2011 Mercury Grand Marquis. When rebuilding your engine, ensuring the crankshaft spins true within properly sized and well-built bearings is crucial for oil pressure and overall engine health.