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Engines and Components› Engine Bearings

King Engine Builders

Tri-Metal Main Bearing Set

$135.99 $83.99 Save $52.00

SKU: MB5568XP0.25

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Overview

The King Engine Builders MB5568XP0.25 is a performance main bearing set designed for specific Acura and Honda engines. This set features tri-metal, copper-lead nickel bearing material with an enhanced layered construction for superior stability and durability. These bearings are built to handle high-load capacities and are ideal for race applications.
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The King XP-Series Main Bearings (MB5568XP0.25) are engineered by King Engine Bearings for high-performance applications, featuring an enhanced tri-metal construction for exceptional stability and durability. The layered copper lead design, combined with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing, ensures superior longevity under demanding conditions. These bearings maintain incredibly tight wall thickness tolerances, an impressive +/- .0001 inches, exceeding industry standards. They incorporate enlarged, chamfered oil holes and are available with full, 3/4 in., or 1/2 in. grooving for optimized oiling, delivering consistent and reliable performance with a high-load capacity. The set includes 5 bearings, sold as a complete set. Key specifications include a 0.25mm (0.010 in.) crankshaft undersize, upper groove location, and a 1/2 groove style. These bearings are compatible with a range of Acura and Honda engines, including the 1998 Acura CL, 2013-2015 Acura ILX, 1986-1989 Acura Integra, 1998-2002 Honda Accord, 1988-1991 Honda Civic, and 1989-1991 Honda CRX. Each set comes with a manufacturer's standard warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKing Engine Builders
Part NumberMB5568XP0.25
CategoryEngines and Components
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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