King MB5740XPG .005 Oversized Main Bearing for 2002-2025 Subaru EJ Series

Regular price: $141.95
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Sale price: $141.95

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Product Specification:

SKU:KINGMB5740XPG

MPN: MB5740XPG

UPC: 611500575679

Weight: 0.9 lb

Type: Bearings

Vehicle Fitment

2002-2025 Subaru Impreza WRX/STI, Legacy GT, Outback XT, Baja Turbo, Forester & more (EJ20, EJ22, EJ25)

Features

+.005" housing-bore oversize for refined crank tolerance
Tri-metal pMax Black racing-grade construction
High load capacity (17,000 psi) with 4.5% tin & 5% copper overlay :contentReference[oaicite:0]{index=0}
Micro-etched surface finish for improved bearing break-in
U-groove oiling design enhances lubrication & cooling
Proprietary nano-hardening process for durability under boost
Anti-friction coating for reduced startup wear
No machining required - drop-in fit for +.005" bored blocks

Specifications

Housing bore: + .005" oversize (64.125-64.148 mm housing) :contentReference[oaicite:1]{index=1}
Journal shaft size: 59.985-60.000 mm :contentReference[oaicite:2]{index=2}
Shell thickness: 2.065 mm; widths: 15.100 mm (thrust) & 18.999 mm (others) :contentReference[oaicite:3]{index=3}
Hardness: 115 HV; Load rating: 17,000 psi :contentReference[oaicite:4]{index=4}
Tri-metal layers: steel back, copper/tin intermediate, lead-tin overlay

Included Components

1x full set of 5 pairs main bearing shells (+.005")

Product Description

The King MB5740XPG main bearing set is engineered for Subaru EJ-series engines requiring a +.005" housing bore, delivering race-grade durability and optimized lubrication. Featuring high-spec tri-metal pMax Black metals with tin and copper overlays, U-groove oil ducts, and micro-etched surfaces, these bearings stand up to boosted and high-performance builds without need for machining.

Ideal for engine builders and enthusiasts upgrading WRX, STI, Legacy, Forester, Outback XT, Baja Turbo and other EJ20/22/25 platforms, the MB5740XPG ensures tighter bearing clearances, reliable oil flow, and extended service life under boost. Installation is straightforward - just install into properly bored blocks. Emissions-irrelevant and suitable for race and street performance.