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

The +0.25 sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm. This is a common practice during engine rebuilding to ensure a proper fit with new bearings.

What type of engine loads are these bearings best suited for?

These bearings are designed with a lead-free composite and bi-metal aluminum construction, making them ideal for engines that operate under low to medium loads. They are a solid option for many standard rebuilds.

Are these bearings environmentally friendly?

Yes, the manufacturer states that these bearings feature a lead-free, environmentally safe composite material, aligning with Proposition 65 guidelines.

Specifications

Brand: King Engine Bearings
Part #: MB5527AM0.25
UPC: 611500200212

King GM DOHC 16 Valve/SOHC 8 Valve / Toyota SOHC 8 Valve/DOHC 16 Valve (Size +0.25) Main Bearing Set

Name: King GM DOHC 16 Valve/SOHC 8 Valve / Toyota SOHC 8 Valve/DOHC 16 Valve (Size +0.25) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-gm-dohc-16-valve-sohc-8-valve-toyota-sohc-8-valve-dohc-t14-264522
Price: 29.56 USD
Availability: BackOrder

$29.56

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Fits 1983-1997 Toyota Corolla. King Engine Bearings main bearing set, size +0.25. Features lead-free composite and bi-metal aluminum for low to medium-load engines.

Key Features

Fits 1983-1997 Toyota Corolla, 1990-1992 Geo Prizm, 1990-1997 Toyota Celica, 1985-1989 Toyota MR2, and 1980-1988 Toyota Tercel.
This is a main bearing set, size +0.25.
Features a lead-free, environmentally safe composite material.
Ideal for low to medium-load engines.
Constructed with bi-metal aluminum material.

⚠️ 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 engine, getting the right main bearings is crucial for smooth operation and longevity. This main bearing set from King Engine Bearings is specifically designed for engines found in many 1983-1997 Toyota Corollas, as well as other compatible Geo and Toyota models. These bearings are a key component in supporting the crankshaft, ensuring it spins true and with minimal friction.

What you get here is a set of main bearings that use a lead-free, environmentally safe composite material. This makes them ideal for engines that operate under low to medium loads, offering a well-built solution for many common rebuilds. The bi-metal aluminum construction provides a solid foundation for the crankshaft, helping to manage heat and wear effectively. This particular set is sized +0.25, meaning it's intended for crankshaft journals that have been machined down by 0.25mm.