What does the 0.05mm undersize mean for my engine?

The 0.05mm undersize indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.05mm. This is a common practice during engine rebuilding to correct wear or imperfections, and these bearings will help re-establish the correct oil clearance.

What is the material of these main bearings?

These main bearings feature a bimetal construction with an aluminum silicon base. This material is chosen for its balance of wear resistance and ability to conform to the crankshaft surface, ensuring proper lubrication.

Do these bearings come with installation hardware?

This product is a set of main bearings only. Installation hardware, such as main bearing bolts, is typically sold separately and should be replaced according to manufacturer specifications during engine assembly.

Specifications

Brand: King Engine Bearings
Part #: MB5428SI0.5
UPC: 611500616525

King Engine Bearings Honda R16A/ R18A 2006- Current (Size 0.05) Main Bearing Set

Name: King Engine Bearings Honda R16A/ R18A 2006- Current (Size 0.05) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-honda-r16a-r18a-2006-current-size-0-05-t14-432463
Price: 103.94 USD
Availability: BackOrder

$103.94

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Fits 2006-2015 Honda Civic. King Engine Bearings main bearing set, 0.05mm undersize, for R16A/R18A engines.

Key Features

Fits 2006-2015 Honda Civic.
Main bearing set for Honda R16A and R18A engines.
Features a 0.05mm undersize for use with machined crankshafts.
Constructed with a bimetal design using an aluminum silicon base.
Supports the crankshaft and maintains proper oil clearance.

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About this part

Product Details

This is a set of main bearings from King Engine Bearings, specifically sized at 0.05mm undersize for Honda R16A and R18A engines found in the 2006-2015 Honda Civic. Main bearings are crucial components that support the crankshaft within the engine block, allowing it to rotate smoothly while handling significant loads. When rebuilding or repairing an engine, especially if the crankshaft has been machined undersize, using the correct size bearings is essential for proper oil clearance and engine longevity.

These bearings are constructed with a bimetal design, featuring an aluminum silicon base. This material choice is common for modern engine bearings because it offers good wear resistance and conformability, helping to maintain an oil film between the bearing and the crankshaft. The 0.05mm undersize means these bearings are intended for use when the crankshaft journals have been ground down by 0.05mm to correct imperfections or wear. Using the correct undersize bearing ensures the proper oil clearance is re-established, which is vital for lubrication and preventing premature wear.