King MB5442XPSTDX Race Main Bearings STD for 2007-2009 Mazda Mazdaspeed3 L3-VDT

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Product Specification:

SKU:KINGMB5442XPSTDX

MPN: MB5442XPSTDX

UPC: 611500590801

Weight: 1.0 lb

Type: Bearings

Vehicle Fitment

2007-2009 Mazda Mazdaspeed3 (L3-VDT)
2007-2009 Ford Focus (2.3L L4)
2005-2008 Ford Escape (2.3L L4)
2010-2013 Ford Transit Connect (2.0L L4)
2014-2016 Ford Fusion (2.0L L4)
2007-2012 Mazda CX-7 (2.3L L4)
2006-2008 Mazda Mazda6 (2.3L L4)
2006-2013 Mazda Miata (2.0L L4)

Features

pMax Black™ tri-metal race bearings with advanced nano-scaled hardening
22% harder overlay compared to standard tri-metal bearings
Enhanced fatigue resistance and load capacity up to 17,000 psi
Designed for high-performance applications with forged crankshafts
Precision-engineered for OEM tolerances and clearances
Ideal for street, track, and drift applications
Manufactured by King Engine Bearings, a trusted name in performance bearings
STD size for unmachined crankshafts

Specifications

Part Number: MB5442XPSTDX
Material: Tri-metal with pMax Black™ overlay
Overlay Hardness: 115 HV (22% harder than standard)
Load Capacity: 17,000 psi
Size: STD (Standard)
Shaft Size Range: 54.976 mm - 54.999 mm
Tunnel Size Range: 59.000 mm - 59.019 mm
Wall Thickness: 2.000 mm
Length: 20 mm
Quantity: 5 pairs (journals 1-5)

Included Components

5x Main bearing pairs (positions 1-5)

Product Description

The King MB5442XPSTDX race main bearing set is engineered for high-performance Mazda and Ford engines, including the L3-VDT, 2.3L L4, and 2.0L L4 variants. These bearings feature King's proprietary pMax Black™ tri-metal overlay, which is 22% harder than standard tri-metal bearings, providing enhanced fatigue resistance and a load capacity of up to 17,000 psi. Designed for use with forged crankshafts, they are ideal for street, track, and drift applications.

Manufactured to precise OEM tolerances, these bearings ensure proper clearances and reliable performance under high-stress conditions. The STD size is suitable for unmachined crankshafts, making them a versatile choice for engine builders seeking durability and performance. Installation should be performed by a professional technician, with proper clearance checks and torque procedures followed to ensure optimal engine performance.