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King Engine Bearings MB5257SI1.0 Main Bearing Set GM - 379 V8

(GMC G2500 1983-95, Yukon 1994-97, K1500 1982-86, 1988-98, C1500 1982-86, 1988-97, K2500 1982-86, 1988-2000, Jimmy 1982-91 + 72 more models)

Part of: King Engine Bearings Main Bearing Set Oversize

Other options in this family: King Engine Bearings MB5835SI0.5 King Engine Bearings MB5280SI0.5 King Engine Bearings MB5557SI0.75 King Engine Bearings MB5770SI0.25 King Engine Bearings MB5845SI

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB5257SI1.0
11 reviews
Sale Price

$68.31

1 left at this price

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Usually delivered within 2 days

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Product Details

The King Engine Bearings MB5257SI1.0 is a precision-engineered main bearing set designed specifically for General Motors 379 cubic inch V8 overhead valve engines. This complete bearing set provides reliable crankshaft support for engine rebuilds and performance applications.

Material Construction:

  • Bi-metal silicon aluminum construction for superior durability
  • Aluminum-based bearing material strengthened by 2.5-3% silicon content
  • Engineered for medium load engine applications
  • Optimized for use with nodular cast iron crankshafts
  • Provides excellent wear resistance and thermal stability

Application:

  • Fits General Motors 379 V8 OHV engines
  • Standard size main bearings plus .010" oversize (.0254mm)
  • Complete set for full crankshaft main journal coverage

King Engine Bearings are manufactured to OEM specifications with tight tolerances to ensure proper oil clearance and crankshaft alignment. The silicon-aluminum alloy composition delivers a balanced combination of strength, conformability, and resistance to fatigue under demanding operating conditions.

Products specifications

Fits

GMC G2500 1983-95, Yukon 1994-97, K1500 1982-86, 1988-98, C1500 1982-86, 1988-97, K2500 1982-86, 1988-2000, Jimmy 1982-91, Savana 2500 1996-2002, Savana 3500 1996-2002, C3500 1982-86, 1988-2000, K2500 Suburban 1982-86, 1994-99 + 68 more models

Undersize

1.0

Material

bimetal (aluminum silicon base)

Flange Oversize

FL ON MAX

Title

King Bearings

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

best price anywhere

great price and customer service

I had a great experience ordering my springs through Autoplicity. I received instant notification of my order as it was placed. I was very happy to see shipping information so quickly after the order was placed, also. Last, but not least, I received the springs SO FAST! Best price, instant notification of order status, fastest shipping, therefore best review that I can write! Thanks, Autoplicity, I will be a return customer if I need anything else!

Good enough

Fast and easy

Quick and easy to navigate

great prices

So far so good! Just ordered the parts I needed for my car which I've been trying to find EVERYWHERE without success, until I arrived at autoplicity. Great price, and with a lifetime warranty I'm assuming great quality. I have faith that when the product arrives I will be highly satisfied.

Autoplicity has great discounted prices, lowest I could find for the product I ordered. I would definitely shop here again for my car needs!

thanks

Had a great price on the parts that I wanted, informed me immediately that the products were back ordered from the manufacturer, and wanted to know if I wanted the parts dropped shipped from the manufacturer or what. They said if I wanted to wait it would take around 2 weeks to ship, they arrived in a week.

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