What does the .026 size mean for these bearings?

The .026 indicates that these main bearings are undersize by 0.026 inches. This is typically used when the crankshaft journals have been machined down to this specific size during an engine rebuild or performance modification.

What is the pMax Black material?

The pMax Black is a tri-metal material developed by King Engine Bearings. It's known for its strength and ability to withstand higher loads and temperatures, making it suitable for performance and race engines.

Are these bearings suitable for a daily driver?

While these bearings are well-built and offer improved durability, they are specifically marketed for race applications. For a standard daily driver, a different bearing type might be more appropriate depending on the engine's condition and intended use.

King Engine Bearings Ford Prod. V8 4.6L/5.4L (Size .026) Performance Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5280XP.026
UPC: 611500540134

King Engine Bearings Ford Prod. V8 4.6L/5.4L (Size .026) Performance Main Bearing Set

Name: King Engine Bearings Ford Prod. V8 4.6L/5.4L (Size .026) Performance Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-prod-v8-4-6l-5-4l-size-026-perfor-t14-271478
Price: 167.94 USD
Availability: BackOrder

$167.94

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits many Ford 4.6L/5.4L V8 engines. King Engine Bearings performance main bearing set MB5280XP.026 (.026 undersize) offers improved durability for race applications.

Key Features

Fits many Ford 4.6L and 5.4L SOHC V8 engines.
Main bearing set is .026 inch undersize.
Features King's tri-metal pMax Black material for improved durability.
Designed for race applications and higher load conditions.
Direct replacement for MB5280SI race bearings.

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Will this fit your vehicle?

Product Details

Built with a tri-metal pMax Black material, these King Engine Bearings main bearings are a step up from standard options, especially if you're pushing your Ford 4.6L or 5.4L V8 engine hard. They are specifically sized at .026 inch undersize, which is important for engines that have had their crankshaft journals reground to a specific undersize. This set is designed for race applications, offering improved durability and performance where it counts.

These bearings are a popular choice for Ford modular V8 engines found in a wide range of vehicles, including the Ford F-150, Ford Mustang, and Ford Expedition. The pMax Black material is known for its strength and ability to handle higher loads, making it a solid option when rebuilding or upgrading your engine. They are a direct replacement for the MB5280SI race bearings, offering an updated material composition for enhanced performance.