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King Engine Bearings MB5280SI1.0 Main Bearing Set Ford Oversized - 281 4.6L 1.0mm

(Ford Grand Marquis 1991-2004, F-150 1997-2010, Mustang 1996-2004, 2007-12, F-250 Super Duty 1999-2010, Explorer 2005 + 33 more models)

Part of: King Engine Bearings Main Bearing Set Oversize

Other options in this family: King Engine Bearings MB5835SI0.5 King Engine Bearings MB5557SI0.75 King Engine Bearings MB4102SI0.25 King Engine Bearings MB5280SI0.5 King Engine Bearings MB5770SI0.25

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB5280SI1.0
11 reviews
Sale Price

$41.28

Estimated ship date Tuesday, December 01

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Product Details

The King Engine Bearings MB5280SI1.0 is a complete main bearing set designed for Ford 281 cubic inch (4.6L) engines. This set is manufactured to an oversized specification of 1.0mm, making it ideal for engine rebuilds where the crankshaft journals have been machined undersize to restore proper tolerances after wear or damage.

King Engine Bearings is a globally recognized leader in precision engine bearing manufacturing, supplying OEM and aftermarket bearings to professional engine builders and motorsport teams worldwide. Their SI Series bearings feature advanced material technology engineered for enhanced performance, durability, and reliable oil film maintenance under demanding conditions.

Key Features:

  • Complete main bearing set for Ford 281 (4.6L) engines
  • 1.0mm oversize specification for use with reground crankshafts
  • SI Series construction with advanced bearing alloy for superior wear resistance
  • Precision-machined to tight tolerances for consistent oil clearance
  • Electroplated overlay for excellent break-in characteristics and conformability
  • High fatigue strength to withstand demanding street and performance applications
  • Manufactured to OEM-equivalent or better dimensional standards

Whether you are rebuilding a stock Ford 4.6L engine or preparing a performance powerplant, the King MB5280SI1.0 main bearing set delivers the precision fit and long-term reliability that professional engine builders trust.

Products specifications

Fits

Ford Grand Marquis 1991-2004, F-150 1997-2010, Mustang 1996-2004, 2007-12, F-250 Super Duty 1999-2010, Explorer 2005, F-350 Super Duty 1999-2010, Expedition 1997-2014, F-250 1997-2003, 2005-09, Crown Victoria 1992-2011 + 29 more models

Undersize

1.0

Material

bimetal (aluminum silicon base)

I just received my Knn filter. Shipment was on time. The box look beat up and deformed with a lot of tapes but the filter seems to be in good condition.

So far so good

Didn't see military/LEO discount =(

Thank you.

Cheap, simple and awesome

Great prices hence why after a search on my desired part why I showed up at their store. Had great communication with their staff throughout the entire process.

Unbeleively fast shipping. I ordered on a Tuesday night, and it was delivered to my door by Thursday. Plus, the item was the cheapest with shipping on the web! I will most certainly be doing business with them again!

well satisfied

easy to find what i needed and best prices on the internet.

A bit pricier than other sites, but if you have the item in stock and I don't have to wait a month to get it.

Great price & part in stock & was told would ship today !

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