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Sale

King

XP-Series Main Bearing Set

Name: XP-Series Main Bearing Set
Brand: King
SKU: MB5013XP
Price: 131.92 USD
Availability: InStock

$159.62 $131.92 Save $27.70

SKU: MB5013XP

Special Order

Ships in 4–6 weeks

Free Shipping over $200

$100 Minimum Order

30 Days Return

Description

The King XP-Series Main Bearings MB5013XP are performance-oriented engine components designed to withstand the extreme demands of racing. Constructed with an enhanced tri-metal composition, these bearings feature layered copper-lead construction, a nickel plate barrier, and a lead/tin/copper Babbitt overlay bonded to a steel backing. This advanced adhesion process ensures superior stability and durability under high stress. King's precision manufacturing achieves wall thickness tolerances of +/- 0.0001 inches, significantly tighter than competing products. The XP-Series bearings are designed with specific features for optimal performance in racing applications. They are narrowed to accommodate large radii crankshafts and feature enlarged, chamfered oil holes. The grooving options include full, 3/4 in., or 1/2 in. for improved oil distribution and reduced friction. These race-only bearings are built to handle high-load capacities and extreme RPMs. They are sold as a set.

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

Brand	King
Part Number	MB5013XP
Category	Engines 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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