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King Engine Bearings MB621SI010 Main Bearing Set

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

MB621SI010
9 reviews
Sale Price

$37.61

Estimated ship date Tuesday, December 01

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Product Details

The King Engine Bearings MB621SI010 is a precision-engineered crankshaft main bearing designed for high-performance and racing applications. King Engine Bearings are manufactured using advanced materials and proprietary coating technologies to deliver superior wear resistance and load-carrying capacity under extreme operating conditions.

Key Features:

  • High-strength steel backing with precision tri-metal construction
  • pMax Black™ coating for enhanced wear protection and reduced friction
  • Engineered for high-load applications and performance engines
  • Manufactured to OEM specifications with tighter tolerances
  • Compatible with both stock and modified crankshafts

King main bearings feature precise dimensional control and surface finish quality that exceeds OEM standards. The advanced bearing material composition provides excellent embedability to protect against dirt and debris contamination while maintaining oil film strength at elevated temperatures. Ideal for engine rebuilds, performance upgrades, and racing applications where reliability and durability are critical.

Great!

Wow!! I came across Autoplicity while searching for a fuel pump for my Trans-Am. Not only did they have the cheapest price for the part, but they also had extremely reasonable shipping cost. Most websites claim to have free shipping but it seemed the cost of shipping was added to the cost of their part. Then I find out my order was processed and shipped within one business day!! I'll definately be bookmarking Autoplicity's home page!! Thanks!!

Bought some wire looms for my Chevy from them. Great price, service, and shipping speed!

The item arrived fast and in good condition. There however seems to be a glitch with the scale the first time we weighed something. After we shut it off and then back on it seemed to be OK.

The part I purchased had the lowest price I could find online anywhere.. Simple transaction and fast shipping.. Ordered on a Monday and delivered by Friday..

It has been a smooth and easy process. I would definitely use them again.

Great Prices and Very Fast Shipping. Will order again in the future. Customer Service was great when I called about a question with my order.

Great prices and fast delivery.

best prices around !! Shipping was FAST !

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