King Engine Bearings Standard Crank Main Bearing Set

2015-2021 Subaru STI


SKU: MB5382XPGWe price match!

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The Standard Crank Main Bearings is a performance bearing set for those rebuilding the Subaru WRX/STI. 
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King Engine Bearings Standard Crank Main Bearing Set 2002-2014 Subaru WRX 2004+ Subaru STI


  • Unique metal structure for increased load capacity
  • Distinctive geometric design
  • Designed with a performance simulation and analysis system
  • 4.5% Tin intermediate layer
  • Hardness-115HV
  • Load capacity: 17,000 psi
  • 5% copper overlay
  • Micro-etch surface preparation process
  • Proprietary nano-scaled hardening process
  • Perfect clearance in every set
  • U-groove design increases the bearing's effective surface
  • Integrated oil slot enables better oil passage 
  • Improved oil ingress
  • Crankshaft main bearing location
  • Standard sized



When rebuilding your engine, one of the most important components is the engine bearings. The King Main Bearings are the result of the latest in bearing technology and have been thoroughly designed using a performance simulation and analysis system. These bearings feature a unique metal structure for an increased load capacity and have a proprietary nano-scaled hardening process. The result is a perfect clearance in every set. 

If you are building your Subaru WRX/STI to sustain more power and more boost, then you need a performance bearing set that can sustain the increased power levels for prolonged engine life. 

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