What does the +0.75mm sizing mean for these bearings?

The +0.75mm sizing indicates that these bearings are designed for a crankshaft that has been machined down by 0.75mm. This is common during engine rebuilds when the crankshaft journals have wear or damage and need to be ground to a larger undersize.

What is the advantage of a bimetal aluminum base bearing?

Bimetal bearings with an aluminum base offer improved load-carrying capacity and better thermal conductivity compared to traditional babbitt bearings. This makes them well-suited for modern engines that often run hotter and under higher stress.

Do I need to order anything else with these main bearings?

When rebuilding an engine, it's recommended to also replace the connecting rod bearings and ensure you have the correct engine oil and oil filter. Always refer to your vehicle's service manual for a complete list of parts and procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5009AM0.75
UPC: 611500313530

King Engine Bearings Ford Fiesta 1.25I (ZETec/Ecoboost 1.6) (Size +0.75mm) Main Bearing Set

Name: King Engine Bearings Ford Fiesta 1.25I (ZETec/Ecoboost 1.6) (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-fiesta-1-25i-zetec-ecoboost-1-6-s-t14-770461
Price: 63.13 USD
Availability: BackOrder

$63.13

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Fits 2011-2019 Ford Fiesta. King Engine Bearings Main Bearing Set MB5009AM0.75. Bimetal aluminum base construction.

Key Features

Fits 2011-2019 Ford Fiesta and 2013-2014 Ford Fusion.
Main bearing set for the 1.25I (Zetec/Ecoboost 1.6) engine.
Features a bimetal construction with an aluminum base.
This set is sized +0.75mm for use with a machined crankshaft journal.

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About this part

Product Details

King Engine Bearings is known for making well-built engine components, and this Main Bearing Set is no exception. If you're rebuilding the engine in your 2011-2019 Ford Fiesta with the 1.25I (Zetec/Ecoboost 1.6) engine, these bearings are a solid choice. They are designed to handle the demands of the crankshaft, ensuring smooth operation and proper oil clearance.

These bearings feature a bimetal construction with an aluminum base. This design helps them handle higher loads and temperatures compared to older bearing technologies. This specific set is sized +0.75mm, which is important if you're machining your crankshaft to a larger size during an engine rebuild. Always confirm your crankshaft journal size before ordering bearings.