King XPG Main Bearings (EJ20 EJ25)


  • 0.0005" metallurgically enhanced and hardened XP performance overlay
  • Designed to solve premature bearing failure

STD size bearings are made to match OEM original size.

STDX size bearings are designed with a thinner shell to give you .001" or .025 mm of additional space (total)

Now Only $77.41 Regular Price $96.77


King Engine Bearings was founded in 1960 with one objective: to supply the highest quality bearings available in the marketplace. By specializing in engine bearings, King has built an extensive product offering that includes a wide range of engine bearings for automobiles, light-duty and heavy-duty trucks, marine, aviation, standby power and many other types of internal combustion engines. Every King bearing utilizes the highest quality materials and the most advanced designs to ensure complete customer satisfaction.

King XPG engine bearings help improve performance for Subaru EJ series engines.

Engineered to help solve premature engine bearing failure due to low oil pressure or oil starvationin these high output engines

King's new bearings are specifically engineered to solve premature bearing failure caused by low oil pressure or oil starvation that has plagued the high output Subaru EJ series boxer engines (EJ15, EJ16, EJ18, EJ20, EJ22, EJ25).

"King conducted extensive research into the unique oiling circumstances of the Subaru EJ series engines," explained Ron Sledge, King's performance and technical manager. "What resulted is a completely re-engineered main bearing set that eliminates oil leakage and increases oil flow to number two and number three rod bearings."

To improve oil flow, King XPG bearings feature oil slots instead of standard oil holes for better oil distribution in the groove and more consistent oil flow. Fully grooved number three mainbearings enable 360° oiling to number two and number three rod bearings. King XPG bearings feature a unique lug design that eliminates the conventional lug recess so no oil escapes and full oil pressure is maintained. In addition, narrowed bearing lengths help eliminate fillet ride on high-radius cranks.

With enhanced tri-metal copper lead construction with nickel barrier and Secure Bond adhesion,King XPG bearings have a 20 percent higher load capacity and better resist surface fatigue.

King Subaru XPG main and rod bearings are produced at the company's AS9100 aerospace certified production facility and features the company's new custom designed packaging with specially molded trays that securely hold each shell and prevent contact.

Each bearing features ultra precise wall tolerances: All XPG shells are produced to ±0.0001Bulls Eye wall accuracy and feature King's 0.0005" metallurgically enhanced and hardened XP performance overlay.

warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

More Information
Product Type Engine
Engine Engine Internals
Brand King Bearings
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