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King Engine Bearings MB5281SI1.0 Main Bearing Set Ford 281 4.6L V8 SI Series

(Ford Grand Marquis 1995-2004, F-150 1997-2003, 2009-10, Mustang 1996-2010, Explorer 2002-10, Expedition 1997-2004, F-250 1997-2009 + 20 more models)

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB5281SI1.0
14 reviews
Sale Price

$72.51

Estimated ship date Saturday, November 28

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Product Details

The King Engine Bearings MB5281SI1.0 is a complete main bearing set designed for Ford 281 cubic inch (4.6L) V8 engines. Manufactured to precise OEM tolerances, this set ensures proper oil clearance and crankshaft support for reliable engine operation. King's SI (Silicon-Aluminum) series bearings feature an advanced tri-metal construction with a silicon-aluminum overlay that provides excellent conformability, embeddability, and fatigue resistance under demanding conditions.

Key Features:

  • SI Series Silicon-Aluminum Overlay – Offers superior wear resistance and compatibility with modern engine oils
  • +1.0mm Oversize – Designed for use with reground crankshafts machined 1.0mm undersize
  • Tri-Metal Construction – Steel back, copper-lead lining, and silicon-aluminum overlay for maximum durability
  • OEM Precision Tolerances – Ensures correct oil film thickness and proper crankshaft alignment
  • High Fatigue Strength – Engineered for both street performance and demanding applications
  • Complete Set – Includes all main bearings required for one engine

King Engine Bearings is a globally recognized manufacturer of precision engine bearings trusted by OEM suppliers and professional engine builders worldwide. The MB5281SI1.0 is an ideal choice for engine rebuilds requiring an oversized main bearing solution for the Ford 281 (4.6L) platform.

Products specifications

Fits

Ford Grand Marquis 1995-2004, F-150 1997-2003, 2009-10, Mustang 1996-2010, Explorer 2002-10, Expedition 1997-2004, F-250 1997-2009, Explorer Sport Trac 2007-10, E-150 2003-09, E-250 2003-08, E-150 Econoline 1999-2002 + 16 more models

Material

bimetal (aluminum silicon base)

Undersize

1.0

Flange Oversize

FL ON MAX

gave me what i was looking exactly not offers like most sites.

Easu to find what i needed. Clear information and dscription.

Quick, secure checkout.

Cheap Prices

My shopping was easy,fast and prices are great thanks

WILL BE DETERMINED ON FILL RATE

Best price

Online ordering is easy. Great experience!

Really handy being able to pay through Amazon.

Easy website to find parts and good prices

Very simple and easy to work on thanks

Very fast

Found part quickly. Price was competitive.

It was good

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