King For Subaru

King for Subaru – Continuously Pushing the Limits

Today’s Subaru street performance and full-race engines make more power than ever before, and use increasingly lighter weight components. The loads generated by these engines make yesterday’s engine bearings obsolete. King Racing’s XP series of rod and main bearings was developed to handle these loads and more through technologically advanced bearing materials and specially designed geometrical features. Together, they drive the industry to a new level of durability and performance.
Scroll down for the full list of Subaru available items.

King for Subaru FA20 – Push Your FA Boxer Engine to the Max

The Subaru FA boxer engine is the next generation in the evolution of the wildly successful EJ series of engines. While Subaru made many improvements to this new generation, some problem areas reveal themselves when pushing the FA to its limits. King Engine Bearings has been helping to build stronger and more reliable EJ engines for years now, so it made sense for us to apply this experience to the new FA engine platform. Highly modified FA engines can suffer from issues similar to the EJ series, such as low oil pressure and oil starvation causing premature bearing failure. After thorough analysis, King Racing determined that a complete redesign of the main bearings would allow for increased oil delivery while reducing leakage. By incorporating exclusive King features like ElliptiX™ oil ingress and 360 degree oil grooves, oil starvation is all but eliminated. Plus, King’s SmartLug™ main bearing design shuts the leakage path and resolves one of the weakest links in a high output FA engine. The result is a more reliable FA engine that can handle the higher power and loads produced by race winning, championship engines. King’s XPG Subaru bearings are the key to a reliable high performance FA engine.

EngineNon-Coated Rod BearingPolymer Coated Rod BearingNon-Coated Main BearingPolymer Coated Main Bearing
2.0L 16v FA20CR4616XPGCR4616XPGCMB5745XPG

MB5799XPG
(housing +.005”)
MB5745XPGC
2.0L 16v FB20CR4622XP

CR4689XP
(housing +.003”)
MB5745XPG

MB5799XPG
(housing +.005”)
MB5745XPGC
2.0L DOHC 16v (Incl. Turbo) EJ20 WRX/STI (48mm journal)CR4280XPMB5220XP
(flange in pos. 3)
2.0L DOHC 16v (Incl. Turbo) EJ20 WRX/STI (52mm journal)CR4125XPGCR4125XPGCMB5382XPG
(flange in pos. 5)

MB5739XPG
(housing +.002”)

MB5740XPG
(housing +.005”)
MB5382XPGC
(flange in pos. 5)
2.2L SOHC 16v/DOHC 16v (Incl. Turbo) EJ22 WRX/STI (48mm journal)CR4280XPMB5220XP
(flange in pos. 3)
2.2L SOHC 16v/DOHC 16v (Incl. Turbo) EJ22 WRX/STI (52mm journal)CR4125XPGCR4125XPGCMB5382XPG
(flange in pos. 5)

MB5739XPG
(housing +.002”)

MB5740XPG
(housing +.005”)
MB5382XPGC
(flange in pos. 5)
2.5L 16v FB25CR4622XP

CR4689XP
(housing +.003”)
MB5745XPG

MB5799XPG
(housing +.005”)
MB5745XPGC
2.5L SOHC 16v/DOHC 16v (Incl. Turbo) EJ25 WRX/STI (48mm journal)CR4280XPMB5220XP
(flange in pos. 3)
2.5L SOHC 16v/DOHC 16v (Incl. Turbo) EJ25 WRX/STI (52mm journal)CR4125XPGCR4125XPGCMB5382XPG
(flange in pos. 5)

MB5739XPG
(housing +.002”)

MB5740XPG
(housing +.005”)
MB5382XPGC
(flange in pos. 5)
3.0L DOHC 24v EZ30, EZ30DCR6874XPMB7772XP

 

Click Here for the King for Subaru Brochure(pdf)

Click Here for the King Racing Application Guide(pdf)