What does the 0.25mm undersize mean for these bearings?

The 0.25mm undersize indicates that these bearings are designed for crankshaft main journals that have been machined down by 0.25mm. This is common during engine rebuilds if the original journals have wear or damage and need to be reconditioned to a smaller size.

What type of engine is this bearing set intended for?

This bearing set is specifically recommended for medium-load engines. The lead-free composite material and bi-metal aluminum construction are well-suited for the typical operating conditions of engines found in vehicles like the Honda Civic.

Are these bearings environmentally friendly?

Yes, these bearings feature a lead-free composite material, making them an environmentally safe choice compared to older bearing technologies that contained lead.

Specifications

Brand: King Engine Bearings
Part #: MB5428SI0.25
UPC: 611500616518

King Engine Bearings Honda R16A/ R18A 2006- Current (Size 0.25) Main Bearing Set

Name: King Engine Bearings Honda R16A/ R18A 2006- Current (Size 0.25) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-honda-r16a-r18a-2006-current-size-0-25-t14-432462
Price: 103.94 USD
Availability: BackOrder

$103.94

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Fits 2006-2015 Honda Civic. King Engine Bearings main bearing set, 0.25mm undersize. Lead-free composite for medium-load engines.

Key Features

Fits 2006-2015 Honda Civic.
Main bearing set is 0.25mm undersize.
Features a lead-free, environmentally safe composite material.
Bi-metal aluminum construction.
Ideal 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

King Engine Bearings has been specializing in engine bearings since 1960, focusing on supplying the highest quality bearings available. This main bearing set is made for your 2006-2015 Honda Civic with the R16A or R18A engine. These bearings are a critical part of your engine's rotating assembly, supporting the crankshaft and ensuring it spins smoothly within the engine block.

This particular set uses a lead-free, environmentally safe composite material, making it a solid option for medium-load engines like those found in many Civics. The bi-metal aluminum construction offers good performance for everyday driving. This set is sized 0.25mm undersize, which is important if you're rebuilding an engine where the main journals have been machined down to this size.