What does the '+1.0mm' size mean for these main bearings?

The '+1.0mm' designation indicates that these bearings are oversized by one millimeter. They are designed to be used with a crankshaft that has been machined down (ground) by 1.0mm to account for wear or to achieve specific clearances during an engine rebuild.

What type of engine is this bearing set best suited for?

This bearing set features a lead-free composite material and bi-metal aluminum construction, making it ideal for engines that operate under low to medium load conditions. It's a solid choice for standard rebuilds where extreme performance isn't the main focus.

Does this main bearing set come with all the necessary components for installation?

This product is for the main bearing set only. It is recommended to consult your vehicle's service manual or a professional mechanic for a complete list of parts and tools required for engine bearing installation.

Specifications

Brand: King Engine Bearings
Part #: MB5527AM1.0
UPC: 611500200243

King Engine Bearings Toyota 4A-Fe/5A-Fe/7A-Fe (Size +1.0mm) Main Bearing Set

Name: King Engine Bearings Toyota 4A-Fe/5A-Fe/7A-Fe (Size +1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-4a-fe-5a-fe-7a-fe-size-1-0mm-ma-t14-770778
Price: 30.99 USD
Availability: BackOrder

$30.99

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Fits 1983-1997 Toyota Corolla. King Engine Bearings Main Bearing Set, size +1.0mm. Lead-free composite ideal 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.
Main bearing set sized at +1.0mm, intended for use with a crankshaft ground to that dimension.
Constructed with a lead-free composite material, making them environmentally safe.
Ideal for low to medium-load engines where extreme performance isn't the primary goal.
Features a bi-metal aluminum material for reliable performance and durability.
From King Engine Bearings, a specialist in engine bearing manufacturing since 1960.

⚠️ 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

If you're rebuilding the engine in your 1983-1997 Toyota Corolla, getting the main bearings right is crucial for a smooth-running motor. These main bearings from King Engine Bearings are designed specifically for your 4A-Fe, 5A-Fe, or 7A-Fe engine, and they come at a +1.0mm size, which is important if you're machining your crankshaft to match.

King specializes in bearings, and they've built their reputation on making well-built parts. These bearings use a lead-free composite material that's environmentally safe and works well in engines that aren't under extreme load. The bi-metal aluminum construction offers a solid foundation for your engine's rotating assembly, helping to ensure proper oil clearance and reduced friction.

When you're putting an engine back together, especially after a rebuild or machine work, using the correct size bearings is key. These +1.0mm bearings are meant to be paired with a crankshaft that has been ground down by 1.0mm. Make sure to check your specifications or consult with your machine shop to confirm this is the correct size for your build.